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Knob Screws(Main Body Material:Polyamide)

Knob Screws are utilized in various applications to enable manual control, adjustment, or fastening in a wide range of applications. They have widespread applications across diverse industries such as in automation systems. In various manufacturing industries, for example, food and pharmaceutical industries, a

Knob Screws are utilized in various applications to enable manual control, adjustment, or fastening in a wide range of applications. They have widespread applications across diverse industries such as in automation systems. In various manufacturing industries, for example, food and pharmaceutical industries, and electronics industries.
When selecting a Knobs Screws, it is crucial to consider factors, including size, shape (eg., round, mushroom, ball, T- shaped and polygon shape), material (eg., plastic, stainless steel, aluminum and so on.) and mounting type for example threaded and tapped. These considerations are crucial for ensuring the production of high-quality products. We highly recommend reputable brands such as MISUMI, ESCO and KONISHI, as well as cost-effective options from MISUMI ECONOMY.
Take advantage of the convenience of FREE SHIPPING and NO MINIMUM ORDER on knob screw. Should you have any doubts or require assistance in choosing the right product, our experts are readily available to provide advice and guidance.

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    One-Touch Locking Knob
    One-Touch Locking Knob
    One-Touch Locking Knob

    One-Touch Locking Knob

    IMAO CORPORATION

    [Features]
    · The rotary shaft can be locked or unlocked in a single action.
    · Produces a "click" when locked or unlocked, making it possible to physically sense when locked or unlocked.
    · Locked or unlocked state can be determined by color.

    [Accessories]
    · M5 × 15 mm SUS Hex Socket Head Bolt: 1.
    · M5 × 15 mm SUS cup point hex socket head set screw: 1 (coated with loosening prevention agent).

    CAD :
    2D / 3D
    Mounting Section Dia. d (mm) or Nominal Dia. Environmentally friendly Mounting Section Type Characteristics/Applications Mounting Section, Length L(mm) Main Body, Type Main Body Material Round Shape, Type Mounting Section, Material Threaded End Machining Set Screw Flat Machining Side Machined Polygonal Shape, Type T Shape, Type Additional Function Tapped, Round Hole Machining Main Body, Surface Treatment Mounting Section, Surface Treatment Cleaning Method
    8 ~ 10 - Round Bore - - Special Shape Polyamide - Stainless Steel - None - - - Not Provided Reamer Finishing - None -
    From: ₹ 3,946.44
    Days to Ship: 6 Day(s) or more
    day to ship 6 Day(s) or more
  • You can add up to 6 items per a category to the compare list.

    Engineering Plastic Knob (EK)
    Engineering Plastic Knob (EK)
    Engineering Plastic Knob (EK)
    Engineering Plastic Knob (EK)
    Engineering Plastic Knob (EK)
    Engineering Plastic Knob (EK)
    Engineering Plastic Knob (EK)
    Engineering Plastic Knob (EK)

    Engineering Plastic Knob (EK)

    IMAO CORPORATION

    There are variations with hole, precision hole, male thread, female thread, stainless steel.

    CAD :
    2D / 3D
    Mounting Section Dia. d (mm) or Nominal Dia. Environmentally friendly Mounting Section Type Characteristics/Applications Mounting Section, Length L(mm) Main Body, Type Main Body Material Round Shape, Type Mounting Section, Material Threaded End Machining Set Screw Flat Machining Side Machined Polygonal Shape, Type T Shape, Type Additional Function Tapped, Round Hole Machining Main Body, Surface Treatment Mounting Section, Surface Treatment Cleaning Method
    8 ~ M16 - Threaded / Tapped / Round Bore / Others - 12 ~ 60 Polygonal Shape Polyamide - Stainless Steel / Steel None None - Hexagonal Shape - Not Provided Blind Bore / Reamer Finishing None None / Black Oxide -
    From: ₹ 334.73
    Days to Ship: 5 Day(s) or more
    day to ship 5 Day(s) or more
  • You can add up to 6 items per a category to the compare list.

    Male Threaded Knob T Shape

    Male Threaded Knob T Shape

    ESCO

    [Features]·ESCO Co., Ltd Knob/knob, Male thread knob. ·T-shaped.

    Mounting Section Dia. d (mm) or Nominal Dia. Environmentally friendly Mounting Section Type Characteristics/Applications Mounting Section, Length L(mm) Main Body, Type Main Body Material Round Shape, Type Mounting Section, Material Threaded End Machining Set Screw Flat Machining Side Machined Polygonal Shape, Type T Shape, Type Additional Function Tapped, Round Hole Machining Main Body, Surface Treatment Mounting Section, Surface Treatment Cleaning Method
    M4 ~ M8 - Threaded - 10 ~ 25 Special Shape Polyamide - Others - - - - - Not Provided - - - -
    From: ₹ 414.00
    Days to Ship: 6 Day(s) or more
    day to ship 6 Day(s) or more
  • You can add up to 6 items per a category to the compare list.

    Six Lobed Knobs PSK, PSK-N, PSK-PA

    Six Lobed Knobs PSK, PSK-N, PSK-PA

    KONISHI

    Phenol resin knob. Excellent water resistance and chemical resistance.

    CAD :
    2D
    Mounting Section Dia. d (mm) or Nominal Dia. Environmentally friendly Mounting Section Type Characteristics/Applications Mounting Section, Length L(mm) Main Body, Type Main Body Material Round Shape, Type Mounting Section, Material Threaded End Machining Set Screw Flat Machining Side Machined Polygonal Shape, Type T Shape, Type Additional Function Tapped, Round Hole Machining Main Body, Surface Treatment Mounting Section, Surface Treatment Cleaning Method
    - - Others - - Polygonal Shape Polyamide - Steel - None Not Provided Hexagonal Shape - Not Provided - None Black Oxide -
    From: ₹ 792.04
    Days to Ship: 5 Day(s) or more
    day to ship 5 Day(s) or more
  • You can add up to 6 items per a category to the compare list.

    T-Shaped Knob

    T-Shaped Knob

    ESCO

    [Features]·ESCO Co., Ltd Knob. ·T-shaped knob. ·Wing T-shaped type.

    Mounting Section Dia. d (mm) or Nominal Dia. Environmentally friendly Mounting Section Type Characteristics/Applications Mounting Section, Length L(mm) Main Body, Type Main Body Material Round Shape, Type Mounting Section, Material Threaded End Machining Set Screw Flat Machining Side Machined Polygonal Shape, Type T Shape, Type Additional Function Tapped, Round Hole Machining Main Body, Surface Treatment Mounting Section, Surface Treatment Cleaning Method
    M6 ~ M12 - Threaded / Tapped / Tapped (Stepped) - 20 ~ 30 Special Shape Polyamide - Brass / Others - - - - - Not Provided - - - -
    From: ₹ 982.85
    Days to Ship: 6 Day(s) or more
    day to ship 6 Day(s) or more
  • You can add up to 6 items per a category to the compare list.

    Plastic Parts Tightening Handle Bolt Model KRM-F

    Plastic Parts Tightening Handle Bolt Model KRM-F

    KYOWA

    Main body type Polygon (cruciform), Mounting part type Male thread (M), Main body material Polyamide, Mounting part material Steel, Mounting part surface treatment Trivalent chromate plating

    Mounting Section Dia. d (mm) or Nominal Dia. Environmentally friendly Mounting Section Type Characteristics/Applications Mounting Section, Length L(mm) Main Body, Type Main Body Material Round Shape, Type Mounting Section, Material Threaded End Machining Set Screw Flat Machining Side Machined Polygonal Shape, Type T Shape, Type Additional Function Tapped, Round Hole Machining Main Body, Surface Treatment Mounting Section, Surface Treatment Cleaning Method
    M5 ~ M12 - Threaded - 25 ~ 40 Polygonal Shape Polyamide - Stainless Steel None - Not Provided Cross Shape - Not Provided - None Trivalent Chromate -
    From: ₹ 226.75
    Days to Ship: 5 Day(s) or more
    day to ship 5 Day(s) or more
  • You can add up to 6 items per a category to the compare list.

    Torque Limiting Knob
    Torque Limiting Knob
    Torque Limiting Knob
    Torque Limiting Knob
    Torque Limiting Knob

    Torque Limiting Knob

    IMAO CORPORATION

    [Features]
    · Can be tightened at the set torque.
    · The built-in spring and ball produces a 'click' when the set torque is reached, making it possible to physically sense when it is fully tightened.
    · Once tightened, the knob can be rotated in the same direction in which it is tightened and set to any given position.

    CAD :
    2D / 3D
    Mounting Section Dia. d (mm) or Nominal Dia. Environmentally friendly Mounting Section Type Characteristics/Applications Mounting Section, Length L(mm) Main Body, Type Main Body Material Round Shape, Type Mounting Section, Material Threaded End Machining Set Screw Flat Machining Side Machined Polygonal Shape, Type T Shape, Type Additional Function Tapped, Round Hole Machining Main Body, Surface Treatment Mounting Section, Surface Treatment Cleaning Method
    M5 ~ M6 - Threaded / Tapped - 10 ~ 25 T Shape Polyamide - Steel None None - - Wing Not Provided Blind Bore - Nickel Plating -
    From: ₹ 3,061.50
    Days to Ship: 6 Day(s) or more
    day to ship 6 Day(s) or more
  • You can add up to 6 items per a category to the compare list.

    Plastic Parts Tightening Handle Nut KRM-G Type

    Plastic Parts Tightening Handle Nut KRM-G Type

    KYOWA

    Tighten firmly. Tightening handle nut. Main body Polygon (cruciform), Type of mounting part Female thread (M), Female thread, Round hole processing, Blind hole, Main body material Polyamide, Mounting part material Brass, Mounting part surface treatment None

    Mounting Section Dia. d (mm) or Nominal Dia. Environmentally friendly Mounting Section Type Characteristics/Applications Mounting Section, Length L(mm) Main Body, Type Main Body Material Round Shape, Type Mounting Section, Material Threaded End Machining Set Screw Flat Machining Side Machined Polygonal Shape, Type T Shape, Type Additional Function Tapped, Round Hole Machining Main Body, Surface Treatment Mounting Section, Surface Treatment Cleaning Method
    M5 ~ M12 - Tapped - 9 ~ 16 Polygonal Shape Polyamide - Brass - - Not Provided Cross Shape - Not Provided Blind Bore None None -
    From: ₹ 254.87
    Days to Ship: 5 Day(s) or more
    day to ship 5 Day(s) or more
  • You can add up to 6 items per a category to the compare list.

    Male thread/female thread knob

    Male thread/female thread knob

    ESCO

    [Features]·ESCO Co., Ltd Knob, Male thread, Female thread knob.

    Mounting Section Dia. d (mm) or Nominal Dia. Environmentally friendly Mounting Section Type Characteristics/Applications Mounting Section, Length L(mm) Main Body, Type Main Body Material Round Shape, Type Mounting Section, Material Threaded End Machining Set Screw Flat Machining Side Machined Polygonal Shape, Type T Shape, Type Additional Function Tapped, Round Hole Machining Main Body, Surface Treatment Mounting Section, Surface Treatment Cleaning Method
    M8 ~ M12 - Threaded (Stepped) / Tapped - 25 ~ 40 Special Shape Polyamide - Brass / Others - - - - - Not Provided - - - -
    From: ₹ 1,275.69
    Days to Ship: 6 Day(s) or more
    day to ship 6 Day(s) or more
  • You can add up to 6 items per a category to the compare list.

    brass internal thread knob (black)

    brass internal thread knob (black)

    ESCO

    [Features]·ESCO Co., Ltd Knob/knob, Brass Female thread knob (Black).

    Mounting Section Dia. d (mm) or Nominal Dia. Environmentally friendly Mounting Section Type Characteristics/Applications Mounting Section, Length L(mm) Main Body, Type Main Body Material Round Shape, Type Mounting Section, Material Threaded End Machining Set Screw Flat Machining Side Machined Polygonal Shape, Type T Shape, Type Additional Function Tapped, Round Hole Machining Main Body, Surface Treatment Mounting Section, Surface Treatment Cleaning Method
    M5 ~ M8 - Tapped - - Special Shape Polyamide - Brass - - - - - Not Provided - Others - -
    From: ₹ 696.00
    Days to Ship: 6 Day(s) or more
    day to ship 6 Day(s) or more
  • You can add up to 6 items per a category to the compare list.

    [Made of Steel]male thread knob [orange]

    [Made of Steel]male thread knob [orange]

    ESCO

    ESCO Co., Ltd Knob/knob, [Steel] Male thread knob [Orange].

    Mounting Section Dia. d (mm) or Nominal Dia. Environmentally friendly Mounting Section Type Characteristics/Applications Mounting Section, Length L(mm) Main Body, Type Main Body Material Round Shape, Type Mounting Section, Material Threaded End Machining Set Screw Flat Machining Side Machined Polygonal Shape, Type T Shape, Type Additional Function Tapped, Round Hole Machining Main Body, Surface Treatment Mounting Section, Surface Treatment Cleaning Method
    M6 - Threaded - 40 Special Shape Polyamide - Steel - - - - - Not Provided - - - -
    From: ₹ 780.60
    Days to Ship: 6 Day(s) or more
    day to ship 6 Day(s) or more
  • You can add up to 6 items per a category to the compare list.

    female thread plastic knob

    female thread plastic knob

    ESCO

    [Features]·ESCO Co., Ltd Knobs/knobs, Female thread plastic knobs.

    Mounting Section Dia. d (mm) or Nominal Dia. Environmentally friendly Mounting Section Type Characteristics/Applications Mounting Section, Length L(mm) Main Body, Type Main Body Material Round Shape, Type Mounting Section, Material Threaded End Machining Set Screw Flat Machining Side Machined Polygonal Shape, Type T Shape, Type Additional Function Tapped, Round Hole Machining Main Body, Surface Treatment Mounting Section, Surface Treatment Cleaning Method
    M8 ~ M12 - Tapped (Stepped) - 12 ~ 20 Special Shape Polyamide - Others - - - - - Not Provided - - - -
    From: ₹ 596.01
    Days to Ship: 6 Day(s) or more
    day to ship 6 Day(s) or more
Brand
Product Series
CAD
From
Days to Ship
Mounting Section Dia. d (mm) or Nominal Dia.
Environmentally friendly
Mounting Section Type
Characteristics/Applications
Mounting Section, Length L(mm)
Main Body, Type
Main Body Material
Round Shape, Type
Mounting Section, Material
Threaded End Machining
Set Screw Flat Machining
Side Machined
Polygonal Shape, Type
T Shape, Type
Additional Function
Tapped, Round Hole Machining
Main Body, Surface Treatment
Mounting Section, Surface Treatment
Cleaning Method

    You can add up to 6 items per a category to the compare list.

    One-Touch Locking Knob
      One-Touch Locking Knob
      One-Touch Locking Knob

        You can add up to 6 items per a category to the compare list.

        Engineering Plastic Knob (EK)
          Engineering Plastic Knob (EK)
          Engineering Plastic Knob (EK)
          Engineering Plastic Knob (EK)
          Engineering Plastic Knob (EK)
          Engineering Plastic Knob (EK)
          Engineering Plastic Knob (EK)
          Engineering Plastic Knob (EK)

            You can add up to 6 items per a category to the compare list.

            Male Threaded Knob T Shape

                You can add up to 6 items per a category to the compare list.

                Six Lobed Knobs PSK, PSK-N, PSK-PA

                    You can add up to 6 items per a category to the compare list.

                    T-Shaped Knob

                        You can add up to 6 items per a category to the compare list.

                        Plastic Parts Tightening Handle Bolt Model KRM-F

                            You can add up to 6 items per a category to the compare list.

                            Torque Limiting Knob
                              Torque Limiting Knob
                              Torque Limiting Knob
                              Torque Limiting Knob
                              Torque Limiting Knob

                                You can add up to 6 items per a category to the compare list.

                                Plastic Parts Tightening Handle Nut KRM-G Type

                                    You can add up to 6 items per a category to the compare list.

                                    Male thread/female thread knob

                                        You can add up to 6 items per a category to the compare list.

                                        brass internal thread knob (black)

                                            You can add up to 6 items per a category to the compare list.

                                            [Made of Steel]male thread knob [orange]

                                                You can add up to 6 items per a category to the compare list.

                                                female thread plastic knob
                                                  Brand

                                                  IMAO CORPORATION

                                                  IMAO CORPORATION

                                                  ESCO

                                                  KONISHI

                                                  ESCO

                                                  KYOWA

                                                  IMAO CORPORATION

                                                  KYOWA

                                                  ESCO

                                                  ESCO

                                                  ESCO

                                                  ESCO

                                                  Product Series

                                                  One-Touch Locking Knob

                                                  Engineering Plastic Knob (EK)

                                                  Male Threaded Knob T Shape

                                                  Six Lobed Knobs PSK, PSK-N, PSK-PA

                                                  T-Shaped Knob

                                                  Plastic Parts Tightening Handle Bolt Model KRM-F

                                                  Torque Limiting Knob

                                                  Plastic Parts Tightening Handle Nut KRM-G Type

                                                  Male thread/female thread knob

                                                  brass internal thread knob (black)

                                                  [Made of Steel]male thread knob [orange]

                                                  female thread plastic knob

                                                  CAD
                                                  • 2D / 3D
                                                  • 2D / 3D
                                                  • 2D
                                                  • 2D / 3D
                                                  From

                                                  ₹ 3,946.44

                                                  ₹ 334.73

                                                  ₹ 414.00

                                                  ₹ 792.04

                                                  ₹ 982.85

                                                  ₹ 226.75

                                                  ₹ 3,061.50

                                                  ₹ 254.87

                                                  ₹ 1,275.69

                                                  ₹ 696.00

                                                  ₹ 780.60

                                                  ₹ 596.01

                                                  Days to Ship 6 Day(s) or more 5 Day(s) or more 6 Day(s) or more 5 Day(s) or more 6 Day(s) or more 5 Day(s) or more 6 Day(s) or more 5 Day(s) or more 6 Day(s) or more 6 Day(s) or more 6 Day(s) or more 6 Day(s) or more
                                                  Mounting Section Dia. d (mm) or Nominal Dia.8 ~ 108 ~ M16M4 ~ M8-M6 ~ M12M5 ~ M12M5 ~ M6M5 ~ M12M8 ~ M12M5 ~ M8M6M8 ~ M12
                                                  Environmentally friendly------------
                                                  Mounting Section TypeRound BoreThreaded / Tapped / Round Bore / OthersThreadedOthersThreaded / Tapped / Tapped (Stepped)ThreadedThreaded / TappedTappedThreaded (Stepped) / TappedTappedThreadedTapped (Stepped)
                                                  Characteristics/Applications------------
                                                  Mounting Section, Length L(mm)-12 ~ 6010 ~ 25-20 ~ 3025 ~ 4010 ~ 259 ~ 1625 ~ 40-4012 ~ 20
                                                  Main Body, TypeSpecial ShapePolygonal ShapeSpecial ShapePolygonal ShapeSpecial ShapePolygonal ShapeT ShapePolygonal ShapeSpecial ShapeSpecial ShapeSpecial ShapeSpecial Shape
                                                  Main Body MaterialPolyamidePolyamidePolyamidePolyamidePolyamidePolyamidePolyamidePolyamidePolyamidePolyamidePolyamidePolyamide
                                                  Round Shape, Type------------
                                                  Mounting Section, MaterialStainless SteelStainless Steel / SteelOthersSteelBrass / OthersStainless SteelSteelBrassBrass / OthersBrassSteelOthers
                                                  Threaded End Machining-None---NoneNone-----
                                                  Set Screw Flat MachiningNoneNone-None--None-----
                                                  Side Machined---Not Provided-Not Provided-Not Provided----
                                                  Polygonal Shape, Type-Hexagonal Shape-Hexagonal Shape-Cross Shape-Cross Shape----
                                                  T Shape, Type------Wing-----
                                                  Additional FunctionNot ProvidedNot ProvidedNot ProvidedNot ProvidedNot ProvidedNot ProvidedNot ProvidedNot ProvidedNot ProvidedNot ProvidedNot ProvidedNot Provided
                                                  Tapped, Round Hole MachiningReamer FinishingBlind Bore / Reamer Finishing----Blind BoreBlind Bore----
                                                  Main Body, Surface Treatment-None-None-None-None-Others--
                                                  Mounting Section, Surface TreatmentNoneNone / Black Oxide-Black Oxide-Trivalent ChromateNickel PlatingNone----
                                                  Cleaning Method------------

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                                                  1. 1

                                                  Related Categories to Knob Screws

                                                  FAQ Knob Screws

                                                  Question: How do I properly install the knob screw?
                                                  Answer: Here are some example to install a Knob Screws tapped type
                                                  1. Prepare the Surface: Clean and clear the area where the knob screw will be installed.
                                                  2. Choose the Right Screw: Select a screw with the appropriate size and thread that matches the knob.
                                                  3. Mark the Location: Use a pencil to mark where the knob screw will go, ensuring proper alignment.
                                                  4. Create Pilot Holes (if needed): Use a drill to create small guide holes in the marked spots, if the material is hard.
                                                  5. Insert the Screw: Place the screw through the knob and into the pilot hole or surface.
                                                  6. Tighten the Screw: Use a screwdriver to turn the screw clockwise, securely fastening the knob in place.
                                                  7. Test the Knob: Check the knob's movement and stability to ensure proper installation.
                                                  8. Adjust if Necessary: If the knob feels loose, you may need to tighten the screw further.
                                                  Question: Type of knobs screw?
                                                  Answer: There are various types of knob screws designed for specific applications. Here are a few common types:
                                                  1. Round Knurled Thumb Screws: These have textured heads for better grip, often used in applications where a secure grip is essential.
                                                  Round Knurled Thumb Screws
                                                  2. Lobed Knobs: Have a lobed design for a comfortable grip, commonly found on industrial and mechanical equipment.
                                                  Lobed Knobs
                                                  3. Ball Knobs: These have a spherical shape and are commonly used on levers or control mechanisms.
                                                  Ball Knobs
                                                  4. T-Knobs: Shaped like the letter "T," these knobs are simple to turn and are used in applications where frequent adjustments are needed.
                                                  T-Knobs
                                                  5. Star Knobs: Featuring a star-shaped head for easy turning, often used in applications requiring frequent adjustments.
                                                  Star Knobs
                                                  6. Mushroom Knobs: Shaped like a mushroom. It is used for cabinets, drawers, and doors, these knobs provide a comfortable grip for opening and closing
                                                  Mushroom Knobs
                                                  Question: How to choose the knob screw?
                                                  Answer: Here are some example how to choose the knob screw
                                                  1. Usage: Identify its purpose, such as indoor/outdoor and specific applications like machines, jig fixtures, doors, cabinets, etc.
                                                  2. Material: Match durability to the environment (stainless steel, aluminum, brass and plastic (eg., ABS, Nylon and so on).
                                                  3. Thread Type and Thread Size : Ensure screw matches knob (Threaded, Tapped) or Press fit. and the thread size is appropriate to install
                                                  4. Size: Select a knob head size that is appropriate for your intended use.
                                                  5. Head Type: Choose based on knob design (eg.,round, T Shape, Wing Shape, Polygon shape etc.).
                                                  6. Easy to install : Ensure easy installation and tightening.
                                                  7. Follow Guidelines: Check knob manufacturer's recommendations.
                                                  Question: What is the usage for knob screw?
                                                  Answer: The primary usage of a knob screw is to enable manual control, adjustment, or fastening in a wide range of applications. Here are additional examples of how knob screws are used:
                                                  1. Camera Tripods: Knob screws are used to secure the legs and adjust the height of camera tripods, aiding photographers in achieving stable shots.
                                                  2. HVAC Systems: Knob screws are used to control airflow direction and intensity in ventilation systems, enhancing indoor air quality and comfort.
                                                  3. Scientific Research Instruments: In laboratories, knob screws are employed to fine-tune the position of laser optics, ensuring precise experimental setups.
                                                  4. Automated Manufacturing: Knob screws play a role in industrial automation by adjusting the position of sensors.
                                                  Question: What is the difference between knob screw and door knob?
                                                  Answer: Knob Screw:
                                                  A knob screw is a type of fastener used to secure or adjust objects together. It consists of a threaded and a head. The head is designed for easy gripping and turning by hand. Knob screws are commonly used in applications where frequent adjustments or temporary fastening is required. They are often found in devices like clamps, jigs, and fixtures. The main purpose of a knob screw is to provide a manual way of securing two components together without the need for additional tools.

                                                  Door Knob:
                                                  A door knob, on the other hand, is a handle or knob attached to a door that allows people to open and close the door. It is usually mounted on a spindle that connects the knob on the outside of the door to a mechanism on the inside, allowing the door to be latched or unlatched. Door knobs come in various designs and materials, and they serve both functional and aesthetic purposes. They are an integral part of doors in buildings and structures

                                                  In summary,
                                                  A knob screw is a threaded fastener used for securing or adjusting objects together, often by hand.
                                                  A door knob is a handle attached to a door, allowing people to open and close the door, serving a functional and aesthetic purpose.
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