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  • Flat Washer
  • Flat Washer

Flat Washer

Flat washers are usually thin pieces of various shapes designed to reduce friction, prevent leakage, isolate, prevent loosening, or disperse pressure. Such components are found in many materials and structures and are used to perform a variety of similar functions.

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Size: M4-36

Flat washers are usually thin pieces of various shapes designed to reduce friction, prevent leakage, isolate, prevent loosening, or disperse pressure. Such components are found in many materials and structures and are used to perform a variety of similar functions. Due to the material and technology limitations of threaded fasteners, fasteners such as bolts have a small supporting surface. Therefore, in order to reduce the compressive stress of the bearing surface to protect the surface of the connected parts, gaskets are used.In order to prevent loose coupling, the spring washer and multi-tooth lock washer, circular nut stop washer and saddle shape, waveform and cone shape elastic washer are adopted.Plain washer is mainly used to reduce the pressure, when some parts tighten the axial force is very large, easy to make the washer into a disc

The role of flat washers

1. Increase the contact area between the screw and the machine.

2. Eliminate the damage of spring washers to the machine surface when removing screws.Use must be a spring washer a flat washer, flat washer next to the surface of the machine, the spring washer between the flat washer and the nut.

规 格

Specification

内径公差

Minor Diameter

外径公差

Outside Diameter

厚度公差

Thickness Tolerance

厚度公差分解

Thickness Tolerance

Disintegration

USS 3/16

6.22~6.73

14.15~14.66

0.91~1.65

0.91~1.40

1.40~1.65





USS 1/4

7.80~8.31

18.47~19.02

1.30~2.03

1.30~1.65

1.65~2.03





USS 5/16

9.40~9.91

22.05~22.99

1.63~2.64

1.63~2.20

2.20~2.64





USS 3/8

11.00~11.51

25.22~26.16

1.63~2.64

1.63~2.20

2.20~2.64





USS 7/16

12.57~13.08

31.57~32.51

1.63~2.64

1.63~2.20

2.20~2.64





USS 1/2

14.15~14.60

34.75~35.69

2.18~3.35

2.18~2.70

2.70~3.00





3.00~3.35





USS 9/16

15.75~16.26

37.13~38.07

2.18~3.35

2.18~2.70

2.70~3.00





3.00~3.35





USS 5/8

17.30~18.24

44.27~45.21

2.74~4.06

2.74~3.20

3.20~3.60





3.60~4.06





USS 3/4

20.45~21.39

50.62~51.56

3.10~4.50

3.10~3.60

3.60~4.20





4.20~4.50





USS 7/8

23.65~24.58

56.97~57.91

3.45~4.88

3.45~4.00

4.00~4.30





4.30~4.88





USS 1

26.80~27.74

63.32~64.26

3.45~4.88

3.45~4.00

4.00~4.30





4.30~4.88





USS 11/8

31.57~32.51

69.67~70.61

3.45~4.88

3.45~4.00

4.00~4.30





4.30~4.88





USS 11/4

34.75~35.69

76.02~76.96

3.45~4.88

3.45~4.00

4.00~4.30





4.30~4.88





USS 13/8

37.85~39.24

82.30~83.69

3.89~5.41

3.89~4.40

4.40~5.00





5.00~5.41





USS 11/2

41.02~42.42

88.65~90.04

3.89~5.41

3.89~4.40

4.40~5.00





5.00~5.41





USS 15/8

44.20~45.59

95.00~96.39

3.89~5.41

3.89~4.40

4.40~5.00





5.00~5.41





USS 13/4

47.37~48.77

101.35~102.74

3.89~5.41

3.89~4.40

4.40~5.00





5.00~5.41





USS 17/8

50.55~51.04

107.70~109.09

3.89~5.41

3.89~4.40

4.40~5.00





5.00~5.41





USS 2

53.72~55.12

114.05~115.44

3.89~5.41

3.89~4.40

Flat Washer

Flat Washer

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