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(4 Part Numbers Available)
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Part Number Complete

E-FWZAA-D[10-20/0.5]-V[5-90/0.5]-P[3-88/0.5]-H[1-48/0.5]-T[3-50/0.5]
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Specification/Dimensions

  • O.D.(mm)

    • 10
    • 12
    • 14
    • 15
    • 20
    • 30
    • 40
    • 50
    • 60

    Clear

  • I.D.(mm)

    • 3.5
    • 4.5
    • 5.5
    • 6.5
    • 9
    • 11

    Clear

  • Material

    • Steel
      • Alloy tool steel or bearing steel
      • General Structural Steel or Carbon Steel
    • Stainless Steel
      • SUS440C or equivalent high hardness corrosion resistant steel
      • Austenitic stainless steel
    • Aluminum
      • Aluminum Alloy

    Clear

  • Surface Treatment

    • Not Provided
    • Black Oxide
    • Electroless Nickel Plating
    • Anodize (Clear)
    • Anodize (Black)

    Clear

  • Thickness / Length Tolerance

    • ±0.01
    • ±0.1

    Clear

  • Hardness(HRC)

    • 45～50HRC
    • 55HRC～
    • Without Quenching

    Clear

  • Accuracy

    • Normal
    • Precision Grade

    Clear

  • Counterbored Hole Inner Dia. P

    • 3.5
    • 4.5
    • 5.5
    • 6.5
    • 9
    • 11

    Clear

  • Counterbored Hole Depth H(mm)

    • 4
    • 5
    • 6
    • 8
    • 10
    • 12

    Clear

  • Size Specified Method

    • Custom dimensions
    • T configurable
    • T selectable

    Clear

  • Counterbore Depth H(mm)

     [1-48/0.5mm Unit(s)]

    Clear

  • Inner Dia. P(Ø)

     [3-88/0.5Ø Unit(s)]

    Clear

  • Counterbored Hole Dia. V(φ)

    • 6
    • 8
    • 10
    • 11
    • 14
    • 18

    Clear

  • Counterbore Diameter V(φ)

     [5-90/0.5φ Unit(s)]

    Clear

  • Thickness T (T Configurable)(mm)

     

    Clear

  • Thickness T (T Selectable) or Counterbored Hole Depth H (T Configurable)(mm)

    • 2
    • 8
    • 10
    • 12
    • 15
    • 20

     

    Clear

  • O.D. D(φ)

     [10-20/0.5φ Unit(s)][21-100/1φ Unit(s)]

    Clear

  • Thickness T (Custom Dimensions)(mm)

     [3-50/0.5mm Unit(s)]

    Clear

  • type

    • E-FWZAA
    • E-FWZAAB
    • E-FWZAB
    • E-FWZABH
    • E-FWZAC
    • E-FWZACH
    • E-FWZAM
    • E-FWZAMH
    • E-FWZAS
    • E-FWZASH
    • E-FWZASK
    • E-FWZASKB
    • E-FWZASKM
    • E-FWZASS
    • E-FWZSB
    • E-FWZSC
    • E-FWZSM
    • E-FWZSS
    • E-TWZAB
    • E-TWZAM
    • E-TWZAS
    • E-TWZSB
    • E-TWZSM
    • E-TWZSS
    • E-WZAB
    • E-WZABH
    • E-WZAM
    • E-WZAMH
    • E-WZAS
    • E-WZASH

    Clear

Days to Ship

    • All
    • 9 Day(s) or Less
    • 11 Day(s) or Less

    Clear

Specify Alterations

Metal Washers Counterbored Hole (Part Number)

Metal Washers Counterbored Hole
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Brand :

MISUMI

MiSUMi Economy

MISUMI

Part Number :
4 Part Numbers Available

E-FWZAA-D[10-20/0.5]-V[5-90/0.5]-P[3-88/0.5]-H[1-48/0.5]-T[3-50/0.5]

E-FWZAA-D[21-100/1]-V[5-90/0.5]-P[3-88/0.5]-H[1-48/0.5]-T[3-50/0.5]

E-FWZAAB-D[10-20/0.5]-V[5-90/0.5]-P[3-88/0.5]-H[1-48/0.5]-T[3-50/0.5]

E-FWZAAB-D[21-100/1]-V[5-90/0.5]-P[3-88/0.5]-H[1-48/0.5]-T[3-50/0.5]

E-FWZAA-D[10-20/0.5]-V[5-90/0.5]-P[3-88/0.5]-H[1-48/0.5]-T[3-50/0.5]
E-FWZAA-D[10-20/0.5]-V[5-90/0.5]-P[3-88/0.5]-H[1-48/0.5]-T[3-50/0.5]

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Product DetailProduct Detail
Product Overview
It is generally used as a component that is cushioned at the workpiece connector and plays a role of precise adjustment of the clearance on the cushioned part.
It can also be used to protect the surface of the connected part from being scratched by the nut and disperse the pressure generated by the nut on the connected part.
Dimensional Drawing
MISUMI Metal Washers For Flat Head Bolt Drawings, Gasket Specifications
Specifications Overview
・Material Table
Standard Grade T Dimension Tolerance±0.1Precision Grade Dimension Tolerance±0.01 Material Surface Treatment HardnessD (mm)V (mm)P(mm)H(mm)T(mm)
T Dimension SelectableT Dimension ConfigurableCustom dimensionsT Dimension ConfigurableCustom dimensions
--E-FWZASS--SS400--10~1005~903~881~483~50
--E-FWZAC-E-FWZSCGeneral structural steel or carbon steel--
E-WZABE-TWZABE-FWZABE-TWZSBE-FWZSBFerroferric Oxide Protective Film
E-WZAME-TWZAME-FWZAME-TWZSME-FWZSMElectroless Nickel Plating
--E-FWZAA--Aluminum AlloyClear Anodized-
E-FWZAABBlack Anodized
E-WZASE-TWZASE-FWZASE-TWZSSE-FWZSSAustenitic stainless steel--
--E-FWZACH--General structural steel or carbon steel-45～50HRC
E-WZABHE-FWZABHFerroferric Oxide Protective Film
E-WZAMHE-FWZAMHElectroless Nickel Plating
--E-FWZASK--Alloy tool steel or bearing steel-55HRC～
E-FWZASKBFerroferric Oxide Protective Film
E-FWZASKMElectroless Nickel Plating
E-WZASH-E-FWZASH--Martensitic stainless steel-45～50HRC
Specification Table
Part NumberD0.5mm increments
VPHT
－Standard Grade－
E-FWZASS
E-FWZAC
E-FWZAB
E-FWZAM
E-FWZAA
E-FWZAAB
E-FWZAS

E-FWZACH
E-FWZABH
E-FWZAMH
E-FWZASK
E-FWZASKB
E-FWZASKM
E-FWZASH		10.0～20.0
(0.5mm increments)		5.0~90.03.0~88.01.0~48.03.0~10.0
10.5~20.0
20.5~30.0
30.5~40.0
40.5~50.0
21～30
(1mm increments)		3.0~10.0
10.5~20.0
20.5~30.0
30.5~40.0
40.5~50.0
31～40
(1mm increments)		3.0~10.0
10.5~20.0
20.5~30.0
30.5~40.0
40.5~50.0
41～50
(1mm increments)		3.0~10.0
10.5~20.0
20.5~30.0
30.5~40.0
40.5~50.0
51～60
(1mm increments)		3.0~10.0
10.5~20.0
20.5~30.0
30.5~40.0
40.5~50.0
61～80
(1mm increments)		5.0~10.0
10.5~20.0
20.5~30.0
30.5~40.0
40.5~50.0
81～100
(1mm increments)		5.0~10.0
10.5~20.0
20.5~30.0
30.5~40.0
40.5~50.0
Machining Conditions
DVP
For 10-60V≤D－2P ≤ V － 2
For 61-100V≤D－4P ≤ V － 4

Machining Conditions of SKS3 Material
DVP
For 10V≤D－2P ≤ V － 2
For 10.5-30V≤D－4
For 31-60V≤D－6
For 61-80V≤D－8P ≤ V － 4
For 81-100V≤D－10

2≤(T-H)≤P×8 The shaft diameter is 2mm or more and P×8 or less.
■Custom Dimensions-Precision Grade
Part NumberD0.5mm increments
VPHT
－Precision Grade－
E-FWZSC
E-FWZSB
E-FWZSM
*E-FWZSS		10.0～20.0
(0.5mm increments)		5.0~58.03.0~56.01.0~48.03.0~10.0
10.5~20.0
20.5~30.0
30.5~40.0
40.5~50.0
21～30
(1mm increments)		3.0~10.0
10.5~20.0
20.5~30.0
30.5~40.0
40.5~50.0
31～40
(1mm increments)		3.0~10.0
10.5~20.0
20.5~30.0
30.5~40.0
40.5~50.0
41～50
(1mm increments)		3.0~10.0
10.5~20.0
20.5~30.0
30.5~40.0
40.5~50.0
51～60
(1mm increments)		3.0~10.0
10.5~20.0
20.5~30.0
30.5~40.0
40.5~50.0
Machining Conditions of Austenitic Stainless Steel T≥3.5
DVP
For 10-60V≤D－2P ≤ V － 2
For 61-100V≤D－4P ≤ V － 4

2≤(T-H)≤P×8 The shaft diameter is 2mm or more and P×8 or less.
■T dimension selectable
Part NumberHT
Selection		VP
TypeD
E-WZAB
E-WZAM
E-WZAS
E-WZABH
E-WZAMH
E-ＷZASH		1046810   63.5
125 810   84.5
146 810   105.5
158  1012  116.5
208  101215 
3010   1215 149
4012    15201811
5012    1520
6012    1520
■T dimension configurable
Part NumberH
0.5mm increments		T
0.5mm increments		VP
TypeD
-Standard Grade-
E-TWZAB
E-TWZAM
E-TWZAS
-Precision Grade-
E-TWZSB
E-TWZSM
E-TWZSS		101.0~18.03.0~10.063.5
10.5~20.0
123.0~10.084.5
10.5~20.0
143.0~10.0105.5
10.5~20.0
153.0~10.0116.5
10.5~20.0
203.0~10.0
10.5~20.0
303.0~10.0149
10.5~20.0
   Machining Conditions H+2≤T≤P×8 
Product Features
Feature 1: There is a wide range of options for inner and outer diameters and thickness, and for the T dimension configurable type, the thickness can be specified in 0.5mm increments.
Feature 2: High-precision products made by cutting and machining can realize high-precision spatial adjustment.
Feature 3: Compared with standard washers, metal washers will not be dented after the connected part is screwed in due to the locking, and cause the bolts to loosen.
Feature 4: Compared with standard stamped washers, metal washers increase the friction with the mounting part, which can prevent loosening.
Usage Method
Example of use for securing the seat surface   
■The bolt connection is stable.   
Usage method of metal spiral wound gaskets
 
Example of use for anti-loosening  Example of use for reinforcement of soft materials
■ By increasing the seat surface to increase friction, it is not prone to loosening.  ■ Prevent the bolts from sinking in.
Metal Spiral Wound Gaskets Larger Image
 
Example of use as spring washer   
Specifications of metal spiral wound gaskets
Precautions
①When D=16 or less, chamfer C is 0.2 or less.
When D=20 or more, chamfer C is 0.5 or less.
②Metal washer is a turned product, not a stamped part.
③When the relative humidity of the operating environment is high and certain anti-rust ability is required, please choose products with electroless nickel plating surface treatment or stainless steel SUS3 series materials.
④When the operating environment requires certain abrasion resistance and hardness for metal washers, please give priority to metal washer quenched products.
Example of Use
Example of using flat washers
Application Industries
Smart Phones Electronic & Electrical Lithium battery
Metal gaskets can be applied in the smart phone industry Specifications of washers used in the electronics and electrical appliances industry Standards of flat washers used in the lithium battery industry
Automotive Robotics Medical
Metal and graphite spiral wound gaskets used in the automotive industry Standards of gaskets used in the robotics industry Specifications of metal spiral wound gaskets used in the medical industry
Related Products
Ultra short head hex socket bolt Adjustment Screw Components Hex Head Stud Axle Pin Bolt
Flat Washer Specifications and Related Products MISUMI Brand Direct-from-Manufacturer Metal Washers Function of MISUMI Washers
Representative model: CBSA6-12 Representative model: ANH4-20 Representative model: DBTS6-3-10
Advantages: space saving, sufficient stock Advantages: Front end hardened, optional length Advantages: Accurate positioning, high shaft precision

Related Documents
Examples of using metal washer/collars ClickExamples of using metal washer/collars
Anti-rust performance and maintenance of metal materials and surface treatment ClickAnti-rust performance and maintenance of metal materials and surface treatment
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  1. 1
Part Number
E-FWZAA-D[10-20/0.5]-V[5-90/0.5]-P[3-88/0.5]-H[1-48/0.5]-T[3-50/0.5]
E-FWZAA-D[21-100/1]-V[5-90/0.5]-P[3-88/0.5]-H[1-48/0.5]-T[3-50/0.5]
E-FWZAAB-D[10-20/0.5]-V[5-90/0.5]-P[3-88/0.5]-H[1-48/0.5]-T[3-50/0.5]
E-FWZAAB-D[21-100/1]-V[5-90/0.5]-P[3-88/0.5]-H[1-48/0.5]-T[3-50/0.5]
Part NumberPriceMinimum Order Qty.Volume DiscountDays to ShipRoHSO.D.
(mm) 		I.D.
(mm) 		Material Surface Treatment Thickness / Length Tolerance Hardness
(HRC) 		Accuracy Counterbored Hole Inner Dia. P Counterbored Hole Depth H
(mm) 		Size Specified Method Counterbore Depth H
(mm) 		Inner Dia. P
(Ø) 		Counterbored Hole Dia. V
(φ) 		Counterbore Diameter V
(φ) 		Thickness T (T Configurable)
(mm) 		Thickness T (T Selectable) or Counterbored Hole Depth H (T Configurable)
(mm) 		O.D. D
(φ) 		Thickness T (Custom Dimensions)
(mm)

-

1 Piece(s) 11 Day(s) 10--[Aluminum] Aluminum AlloyAnodize (Clear)±0.1Without QuenchingNormal--Custom dimensions1 ～ 483 ～ 88-5 ～ 90--10 ～ 203 ～ 50

-

1 Piece(s) 11 Day(s) 10--[Aluminum] Aluminum AlloyAnodize (Clear)±0.1Without QuenchingNormal--Custom dimensions1 ～ 483 ～ 88-5 ～ 90--21 ～ 1003 ～ 50

-

1 Piece(s) 11 Day(s) 10--[Aluminum] Aluminum AlloyAnodize (Black)±0.1Without QuenchingNormal--Custom dimensions1 ～ 483 ～ 88-5 ～ 90--10 ～ 203 ～ 50

-

1 Piece(s) 11 Day(s) 10--[Aluminum] Aluminum AlloyAnodize (Black)±0.1Without QuenchingNormal--Custom dimensions1 ～ 483 ～ 88-5 ～ 90--21 ～ 1003 ～ 50

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  1. 1

Basic Information

I.D. Shape Counterbored I.D. Tolerance +0.3~+0.1 O.D. Tolerance 0~-0.2
Sale Type Single Item

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