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Bolt head styles and American standard flat washer standardReturns list
Bolt head styles and American standard flat washer standard

Flat washer standard & dimension

单位(UNIT):mm
 

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
4.40~5.00
5.00~5.41