Bolt head styles and American standard flat washer standard

Bolt head styles name

bolt head style

Great pictures from http://fastspecinc.com

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

 

 

 

CATEGORY AND TAGS:

Support

Related Items