Hexagon Socket Countersunk Head Cap Screws
According to :ANSI /ASME B18.3
Material :SCM3 (SCM 435)
Hardness :HRC 36°– 45°
Surface :Temper Color
mm
Size(d) |
#4 |
#5 |
#6 |
#8 |
#10 |
1/4 |
5/16 |
3/8 |
7/16 |
1/2 |
|
Threads
per Inch |
40 |
40 |
32 |
32 |
24 |
20 |
18 |
16 |
14 |
13 |
|
d1 |
Max |
2.84 |
3.17 |
3.50 |
4.16 |
4.82 |
6.35 |
7.93 |
9.52 |
11.11 |
12.70 |
Min |
2.73 |
3.05 |
3.37 |
4.02 |
4.67 |
6.18 |
7.75 |
9.34 |
10.90 |
12.49 |
|
D |
Max |
6.47 |
7.13 |
7.79 |
9.11 |
10.43 |
13.48 |
16.66 |
19.83 |
21.43 |
23.82 |
Min |
5.53 |
6.09 |
6.68 |
7.89 |
9.11 |
12.19 |
15.24 |
18.28 |
19.83 |
22.14 |
|
B |
Ref |
2.10 |
2.28 |
2.46 |
2.84 |
3.22 |
4.08 |
5.02 |
5.94 |
5.94 |
6.37 |
Tolerance |
0.27 |
0.30 |
0.33 |
0.35 |
0.38 |
0.40 |
0.43 |
0.45 |
0.45 |
0.45 |
|
B
Nom |
1.57 |
1.98 |
1.98 |
2.38 |
3.17 |
3.96 |
4.77 |
5.56 |
6.35 |
7.92 |
|
M
Min |
1.39 |
1.54 |
1.67 |
1.93 |
2.21 |
2.81 |
3.42 |
4.03 |
4.03 |
4.36 |
|
LT
Min |
19.05 |
19.05 |
19.05 |
22.35 |
22.35 |
25.40 |
28.45 |
31.75 |
35.05 |
38.10 |
Nom Kebgtg Nom Sized |
1 |
1-1/4 |
1-1/2 |
1-3/4 |
2 |
2-1/4 |
2-1/2 |
2-3/4 |
3 |
3-31/2 |
4 |
4-1/2 |
5 |
5-1/2 |
6 |
|
25.4 |
31.8 |
38.1 |
44.5 |
50.8 |
57.1 |
63.5 |
69.8 |
76.2 |
88.9 |
101.6 |
114.6 |
127.0 |
139.7 |
152.4 |
||
#4 |
LGH LBH |
|
12.70 9.65 |
12.70 9.65 |
25.40 22.35 |
25.40 22.35 |
38.10 33.05 |
|
|
|
|
|
|
|
|
|
#5 |
LGH LBH |
|
12.70 9.65 |
12.70 9.65 |
25.40 22.35 |
25.40 22.35 |
38.10 33.05 |
|
|
|
|
|
|
|
|
|
#6 |
LGH LBH |
|
12.70 9.65 |
12.70 8.64 |
25.40 21.34 |
25.40 21.34 |
38.10 34.04 |
38.10 34.04 |
50.80 46.74 |
|
|
|
|
|
|
|
#8 |
LGH LBH |
|
9.65 5.59 |
9.65 5.59 |
22.35 18.29 |
22.35 18.29 |
35.05 30.99 |
30.05 30.99 |
47.75 43.69 |
47.75 43.69 |
|
|
|
|
|
|
#10 |
LGH LBH |
|
|
15.75 10.67 |
15.75 10.67 |
28.45 23.37 |
28.45 23.37 |
41.45 36.07 |
41.15 36.07 |
53.85 48.77 |
66.55 61.47 |
79.25 74.17 |
|
|
|
|
1/4 |
LGH LBH |
|
|
|
19.05 12.70 |
19.05 12.70 |
31.75 25.40 |
31.75 25.40 |
44.45 38.10 |
44.45 38.10 |
57.15 50.80 |
69.85 63.50 |
82.55 76.20 |
95.25 88.90 |
|
|
5/16 |
LGH LBH |
|
|
|
|
22.35 15.24 |
22.35 15.24 |
35.05 27.94 |
35.05 27.94 |
47.75 40.64 |
60.45 53.34 |
73.15 66.04 |
85.85 78.74 |
98.55 91.44 |
111.25 104.14 |
123.95 116.84 |
3/8 |
LGH LBH |
|
|
|
|
|
25.40 17.53 |
25.40 17.53 |
38.10 30.23 |
38.10 30.23 |
50.80 42.93 |
63.50 55.63 |
76.20 68.33 |
88.90 81.03 |
101.60 93.73 |
114.30 106.43 |
7/16 |
LGH LBH |
|
|
|
|
|
|
28.45 19.56 |
28.45 19.56 |
41.15 32.26 |
53.85 44.96 |
66.55 57.66 |
79.25 70.36 |
91.95 83.06 |
104.65 95.76 |
117.35 108.46 |
1/2 |
LGH LBH |
|
|
|
|
|
|
25.40 15.75 |
25.40 15.75 |
25.40 15.75 |
44.45 34.54 |
63.50 53.85 |
63.50 53.85 |
82.55 72.64 |
101.60 91.95 |
101.60 91.95 |