Metric Hex Bolts & Hex Screws with Reduced Body Diameters
Dimensions of Metric Hex Bolts & Hex Screws with Reduced Body Diameters
Nominal Diameter, D, and Thread Pitch |
Shoulder Diameter Ds, |
Body Diameter Dsi, |
Shoulder Length, Lsh |
Max |
Min |
Max |
Min |
Max |
Min |
Metric Formed Hex Screws (ANSI B18.2.3.2M-1979, R1989) |
M5 x 0.8 |
5.00 |
4.46 |
4.46 |
4.36 |
3.5 |
2.5 |
M6 x 1 |
6.00 |
5.82 |
5.39 |
5.21 |
4.0 |
3.0 |
M8 x 1.25 |
8.00 |
7.78 |
7.26 |
7.04 |
5.0 |
4.0 |
M10 x 1.5 |
10.00 |
9.78 |
9.08 |
8.86 |
6.0 |
5.0 |
M12 x 1.75 |
12.00 |
11.73 |
10.95 |
10.68 |
7.0 |
6.0 |
M14 x 2 |
14.00 |
13.73 |
12.77 |
12.50 |
8.0 |
7.0 |
M16 x 2 |
16.00 |
15.73 |
14.77 |
14.50 |
9.0 |
8.0 |
M20 x 2.5 |
20.00 |
19.67 |
18.49 |
18.16 |
11.0 |
10.0 |
M24 x 3 |
24.00 |
23.67 |
22.13 |
21.80 |
13.0 |
12.0 |
Metric Hex Flange Screws (ANSI B18.2.3.4M-1984) |
M5 x 0.8 |
5.00 |
4.82 |
4.46 |
4.36 |
3.5 |
2.5 |
M6 x 1 |
6.00 |
5.82 |
5.39 |
5.21 |
4.0 |
3.0 |
M8 x 1.25 |
8.00 |
7.78 |
7.26 |
7.04 |
5.0 |
4.0 |
M10 x 1.5 |
10.00 |
9.78 |
9.08 |
8.86 |
6.0 |
5.0 |
M12 x 1.75 |
12.00 |
11.73 |
10.95 |
10.68 |
7.0 |
6.0 |
M14 x 2 |
14.00 |
13.73 |
12.77 |
12.5 |
8.0 |
7.0 |
M16 x 2 |
16.00 |
15.73 |
14.77 |
14.5 |
9.0 |
8.0 |
Metric Hex Bolts (ANSI B18.2.3.5M-1979, R1989) |
M5 x 0.8 |
5.48 |
4.52 |
4.46 |
4.36 |
3.5 |
2.5 |
M6 x 1 |
6.48 |
5.52 |
5.39 |
5.21 |
4.0 |
3.0 |
M8 x 1.25 |
8.58 |
7.42 |
7.26 |
7.04 |
5.0 |
4.0 |
M10 x 1.5 |
10.58 |
9.42 |
9.08 |
8.86 |
6.0 |
5.0 |
M12 x 1.75 |
12.70 |
11.30 |
10.95 |
10.68 |
7.0 |
6.0 |
M14 x 2 |
14.70 |
13.30 |
12.77 |
12.50 |
8.0 |
7.0 |
M16 x 2 |
16.70 |
15.30 |
14.77 |
14.50 |
9.0 |
8.0 |
M20 x 2.5 |
20.84 |
19.16 |
18.49 |
18.16 |
11.0 |
10.0 |
M24 x 3 |
24.84 |
23.16 |
22.13 |
21.80 |
13.0 |
12.0 |
Metric Heavy Hex Bolts (ANSI B18.2.3.6M-1979, R1989) |
M12 x 1.75 |
12.70 |
11.30 |
10.95 |
10.68 |
7.0 |
6.0 |
M14 x 2 |
14.70 |
13.30 |
12.77 |
12.50 |
8.0 |
7.0 |
M16 x 2 |
16.70 |
15.30 |
14.77 |
14.50 |
9.0 |
8.0 |
M20 x 2.5 |
20.84 |
19.16 |
18.49 |
18.16 |
11.0 |
10.0 |
M24 x 3 |
24.84 |
23.16 |
22.13 |
21.80 |
13.0 |
12.0 |
Metric Heavy Hex Flange Screws (ANSI B18.2.3.9M-1984) |
M10 x 1.5 |
10.00 |
9.78 |
9.08 |
8.86 |
6.0 |
5.0 |
M12 x 1.75 |
12.00 |
11.73 |
10.95 |
10.68 |
7.0 |
6.0 |
M14 x 2 |
14.00 |
13.73 |
12.77 |
12.50 |
8.0 |
7.0 |
M16 x 2 |
16.00 |
15.73 |
14.77 |
14.50 |
9.0 |
8.0 |
M20 x 2.5 |
20.00 |
19.67 |
18.49 |
18.16 |
11.0 |
10.0 |
- a Shoulder is mandatory for formed hex screws, hex flange screws, and heavy hex flange screws. Shoulder is optional for hex bolts and heavy hex bolts.
- All dimensions are in millimeters.