Dessins cotés et schémas techniques

1455_vpYC5d_ASME-B18.2.1-TABLE-1.jpg

Dimensions et paramètres techniques clés

Dimensions in inches (1 inch=25.4 mm) sourceASME B18.2.1 - Square Head Bolts Table 1

Publication date: 2010
d Thread size
UNC (nr of threads x inch) UNF (nr of threads x inch)
H basic
E min
b (l< 6')
b (l> 6')
F basic
G basic
1/4
20 28 11/64 0.237 0.75 1 3/8 0.498
5/16
18 24 13/64 0.298 0.875 1.125 1/2 0.665
3/8
16 24 1/4 0.360 1 1.25 9/16 0.747
7/16
14 20 18/64 0.421 1.125 1.375 5/8 0.828
1/2
13 20 21/64 0.482 1.25 1.5 3/4 0.995
5/8
11 18 27/64 0.605 1.5 1.75 15/16 1.244
3/4
10 16 1/2 0.729 1.75 2 1 1/8 1.494
7/8
9 14 19/32 0.852 2 2.25 1 5/16 1.742
1
8 12 21/32 0.976 2.25 2.5 1 1/2 1.991
1 1/8 7 12 3/4 1.098 2.25 2.75 1 11/16 2.239
1 1/4 7 12 27/32 1.223 2.75 3 1 7/8 2.489
1 3/8 6 12 29/32 1.345 3 3.25 2 1/16 2.738
1 1/2 6 12 1 1.470 3.25 3.5 2 1/4 2.986

Dimensions in inches (1 inch=25.4 mm) sourceASME B18.2.1 - Askew Head Bolts Table 6

Publication date: 2010
d Thread size

UNC

(nr of threads x inch)

UNF

(nr of threads x inch)

H1 min H ref E min
LT (l< 6')
LT (l> 6')
G min
F basic
3/8
16 24 0.277 0.25 0.36
1
1.25
0.747 0.563
1/2
13 20 0.371 0.328 0.482
1.25
1.5
0.995 0.75
5/8
11 18 0.480 0.422 0.605
1.5
1.75
1.244 0.938
3/4
10 16 0.574 0.5 0.729
1.75
2
1.494 1.125
7/8
9 14 0.683 0.594 0.852
2
2.25
1.742 1.313
1
8 12 0.761 0.656 0.976
2.25
2.5
1.991 1.5