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Spiral Taps（Screw size (Nominal)：1/4-28UNF）
An online store for spiral taps. In MISUMI's e-catalog (online general catalog), specifications/dimensions of nominal, pitch, screw type, delivery date, etc. can be selected with one click, so you can easily find the desired spiral tap.
[What is a spiral tap?]
A cutting tap with grooves twisted so as to discharge chips in the direction opposite to the tap traveling direction (front side), making it ideal for machining "blind hole" threads. As it has good machinability, it is suitable for viscous materials (stainless steel, aluminum, copper, etc.). Also, as the discharge of chips is good, it is also suitable for machining. There are two types of materials, mainly HSS (= high speed steel) and carbide: HSS is tough and hard to break and carbide is abrasion resistant.
[What is a spiral tap?]
A cutting tap with grooves twisted so as to discharge chips in the direction opposite to the tap traveling direction (front side), making it ideal for machining "blind hole" threads. As it has good machinability, it is suitable for viscous materials (stainless steel, aluminum, copper, etc.). Also, as the discharge of chips is good, it is also suitable for machining. There are two types of materials, mainly HSS (= high speed steel) and carbide: HSS is tough and hard to break and carbide is abrasion resistant.
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Model A Tap Series, Spiral Tap A-SFT
OSG
Thanks to its stable chip ejection capability, it can be used with various materials, as well as a wide range of cutting regions and devices. A spiral tap with a spiral groove mainly used for blind holes.
Screw size (Nominal) Screw Types work material Pitch (P), Number of Threading(mm) Tool Material Type Tap Type Hole type Chamfer threads (Lcf) Coating Type Coating Y/N Overall Length (L)(mm) 1/4-28UNF unified Low-Carbon Steel (carbon alloy less than 0.25%)[○] / Medium carbon steel (carbon content 0.25 to 0.45%)[◎] / High Carbon Steel (C with a content over 0.45%)[◎] / Alloy Steel (SCM)[○] / Stainless steel (SUS)[○] / Tool Steel (Before SKD Hardening)[○] / Steel casting (SC)[○] / Ductile Cast Iron (FCD)[○] / Copper (Cu)[○] / Brass (Bs)[○] / Brass cast iron (BsC)[○] / Bronze (Pb)[○] / Aluminum Rolled Material (AL)[○] / Aluminum Alloy Casting (AC, ADC)[◎] / Magnesium Alloy (MC)[○] / Zinc Alloy Casting (ZDC)[○] - Powder high-speed steel Spiral Tap For blind hole 2.5P Other Available 62 From: ₹ 2,991.00 Days to Ship: 6 Day(s) or more 
6 Day(s) or more
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| Days to Ship |
| Screw size (Nominal) |
| Screw Types |
| work material |
| Pitch (P), Number of Threading(mm) |
| Tool Material Type |
| Tap Type |
| Hole type |
| Chamfer threads (Lcf) |
| Coating Type |
| Coating Y/N |
| Overall Length (L)(mm) |
You can add up to 6 items per a category to the compare list.  | |
| Brand | OSG |
| Product Series | |
| From | ₹ 2,991.00 |
| Days to Ship | 6 Day(s) or more |
| Screw size (Nominal) | 1/4-28UNF |
| Screw Types | unified |
| work material | Low-Carbon Steel (carbon alloy less than 0.25%)[○] / Medium carbon steel (carbon content 0.25 to 0.45%)[◎] / High Carbon Steel (C with a content over 0.45%)[◎] / Alloy Steel (SCM)[○] / Stainless steel (SUS)[○] / Tool Steel (Before SKD Hardening)[○] / Steel casting (SC)[○] / Ductile Cast Iron (FCD)[○] / Copper (Cu)[○] / Brass (Bs)[○] / Brass cast iron (BsC)[○] / Bronze (Pb)[○] / Aluminum Rolled Material (AL)[○] / Aluminum Alloy Casting (AC, ADC)[◎] / Magnesium Alloy (MC)[○] / Zinc Alloy Casting (ZDC)[○] |
| Pitch (P), Number of Threading(mm) | - |
| Tool Material Type | Powder high-speed steel |
| Tap Type | Spiral Tap |
| Hole type | For blind hole |
| Chamfer threads (Lcf) | 2.5P |
| Coating Type | Other |
| Coating Y/N | Available |
| Overall Length (L)(mm) | 62 |
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Specification/Dimensions
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Screw size (Nominal)
- No.10
- No.10-32UNF
- No.10-24UNC
- No.2
- No.3
- No.4
- No.4UN
- No.4-40UNC
- No.5
- No.5UN
- No.5-40UNC
- No.6
- No.6UN
- No.6-32UNC
- No.8
- No.8UN
- No.8-32UNC
- 1
- M1
- W1
- 1-8UNC
- W1"1/2
- 1 1/2-8UN
- 1 1/4
- W1"1/4
- 1 1/4-8UN
- W1"1/8
- 1 1/8-8UN
- 1/2
- 1/2UN
- W1/2
- 1/2-20UNF
- 1/2-13UNC
- 1/2W12
- 1 3/4-8UN
- W1"3/8
- 1 3/8-8UN
- 1/4
- SM1/4
- W1/4
- 1/4-28UNF
- 1/4-20UNC
- 1 5/8-8UN
- 1 7/8-8UN
- 1'W8
- SM1/8
- W1/8
- M1.2
- M1.4
- M1.6
- M1.7
- M1.8
- M2
- 2-8UN
- M2.2
- M2.3
- M2.5
- M2.6
- M3
- 3/4
- 3/4UN
- W3/4
- 3/4-16UNF
- 3/4-10UNC
- 3/4W10
- 3/8
- 3/8UN
- W3/8
- 3/8-24UNF
- 3/8-16UNC
- 3/8W16
- 3/16
- SM3/16
- SM3/32
- M3.5
- M3.5
- M4
- M4.5
- M4.5
- 5M
- M5
- M5
- 5/8
- 5/8UN
- W5/8
- 5/8-18UNF
- 5/8-11UNC
- 5/8W11
- 5/16
- 5/16UN
- W5/16
- 5/16-24UNF
- 5/16-18UNC
- 5/16W18
- 5.5M
- M5.5
- M5.5
- M6
- M7
- M7
- 7/8
- W7/8
- 7/8-14UNF
- 7/8-9UNC
- 7/8W9
- 7/16
- W7/16
- 7/16-20UNF
- 7/16-14UNC
- M8
- M9
- M9
- 9/16
- 9/16-18UNF
- 9/16-12UNC
- SM9/32
- SM9/64
- M10
- M10
- M11
- M11
- SM11/64
- M12
- M12
- M14
- M14
- M15
- SM15/64
- M16
- M16
- M17
- M18
- M18
- M20
- M20
- M22
- M22
- M24
- M24
- M25
- M26
- M27
- M28
- M30
- M33
- M36
- M39
- M42
- M45
- M48
- M56
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Screw Types
- Meter
- unified
- Whitworth
- Sewing Machine
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work material
- Low-Carbon Steel (carbon alloy less than 0.25%)
- Medium carbon steel (carbon content 0.25 to 0.45%)
- High Carbon Steel (C with a content over 0.45%)
- Alloy Steel (SCM)
- Stainless steel (SUS)
- Quenched and tempered steel (25 to 35 HRC)
- Quenched and tempered steel (35 to 45 HRC)
- Tool Steel (Before SKD Hardening)
- Steel casting (SC)
- Cast Iron (FC)
- Ductile Cast Iron (FCD)
- Copper (Cu)
- Brass (Bs)
- Brass cast iron (BsC)
- Bronze (Pb)
- Aluminum Rolled Material (AL)
- Aluminum Alloy Casting (AC, ADC)
- Magnesium Alloy (MC)
- Zinc Alloy Casting (ZDC)
- Titanium Alloy (Ti-6Al-4V, etc)
- Nickel-based alloy (Inconel, etc.)
- Thermosetting plastic (bakelite, phenol, etc.)
- Thermoplastic plastic (vinyl chloride, nylon, etc.)
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Pitch (P), Number of Threading(mm)
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Tool Material Type
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Tap Type
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Hole type
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Chamfer threads (Lcf)
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Coating Type
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Coating Y/N
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Overall Length (L)(mm)
Payment Method
- Credit Card
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- Debit Cart
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- Net Banking
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- UPI
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- Cheque on delivery
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- Online payment
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