中国标准出版社出版的“标准紧固件质量大全”里有计算公式,公式是:千件重量m=0.00785×{3.1416/4×垫圈高度
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
|