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About Hex Head Screws and Bolts
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Medium-Strength Metric Class 8.8 Steel Hex Head Screws

Partially Threaded
These Class 8.8 steel screws are suitable for fastening most machinery and equipment. Dimensions meet ISO (formerly DIN) or DIN specifications. Length is measured from under the head.
Zinc-plated steel screws resist corrosion in wet environments. Match the thread spacing of mating components. Fine and extra-fine threads are closely spaced to prevent loosening from vibration; the finer the thread, the better the resistance.
For technical drawings and 3-D models, click on a part number.
Head | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|
Lg., mm | Threading | Min. Thread Lg., mm | Thread Spacing | Wd., mm | Ht., mm | Tensile Strength, psi | Specifications Met | Pkg. Qty. | Pkg. | |
Black Class 8.8 Steel | ||||||||||
M10 × 1.25 mm | ||||||||||
50 | Partially Threaded | 26 | Fine | 17 | 6.6 | 110,000 | DIN 960 | 10 | 000000000 | 00000 |
80 | Partially Threaded | 26 | Fine | 17 | 6.6 | 110,000 | DIN 960 | 10 | 000000000 | 00000 |
Zinc-Plated Class 8.8 Steel | ||||||||||
M8 × 1 mm | ||||||||||
40 | Partially Threaded | 22 | Fine | 13 | 5.3 | 110,000 | ISO 8765, DIN 960 | 25 | 000000000 | 00000 |
45 | Partially Threaded | 22 | Fine | 13 | 5.3 | 110,000 | ISO 8765, DIN 960 | 10 | 000000000 | 0000 |
50 | Partially Threaded | 22 | Fine | 13 | 5.3 | 110,000 | ISO 8765, DIN 960 | 25 | 000000000 | 00000 |
55 | Partially Threaded | 22 | Fine | 13 | 5.3 | 110,000 | ISO 8765, DIN 960 | 10 | 000000000 | 0000 |
60 | Partially Threaded | 22 | Fine | 13 | 5.3 | 110,000 | ISO 8765, DIN 960 | 10 | 000000000 | 0000 |
70 | Partially Threaded | 22 | Fine | 13 | 5.4 | 110,000 | ISO 8765, DIN 960 | 10 | 000000000 | 0000 |
80 | Partially Threaded | 22 | Fine | 13 | 5.3 | 110,000 | ISO 8765, DIN 960 | 10 | 000000000 | 00000 |
100 | Partially Threaded | 22 | Fine | 13 | 5.3 | 110,000 | ISO 8765, DIN 960 | 1 | 000000000 | 0000 |
M10 × 1.25 mm | ||||||||||
35 | Partially Threaded | 26 | Fine | 17 | 6.4 | 110,000 | ISO 8765, DIN 960 | 10 | 000000000 | 00000 |
40 | Partially Threaded | 26 | Fine | 17 | 6.4 | 110,000 | ISO 8765, DIN 960 | 10 | 000000000 | 00000 |
45 | Partially Threaded | 26 | Fine | 17 | 6.4 | 110,000 | ISO 8765, DIN 960 | 10 | 000000000 | 00000 |
50 | Partially Threaded | 26 | Fine | 17 | 6.4 | 110,000 | ISO 8765, DIN 960 | 10 | 000000000 | 00000 |
55 | Partially Threaded | 26 | Fine | 17 | 6.4 | 110,000 | ISO 8765, DIN 960 | 10 | 000000000 | 00000 |
60 | Partially Threaded | 26 | Fine | 17 | 6.4 | 110,000 | ISO 8765, DIN 960 | 10 | 000000000 | 00000 |
65 | Partially Threaded | 26 | Fine | 17 | 6.4 | 110,000 | ISO 8765, DIN 960 | 10 | 000000000 | 00000 |
70 | Partially Threaded | 26 | Fine | 17 | 6.4 | 110,000 | ISO 8765, DIN 960 | 10 | 000000000 | 00000 |
75 | Partially Threaded | 26 | Fine | 17 | 6.4 | 110,000 | ISO 8765, DIN 960 | 5 | 000000000 | 00000 |
80 | Partially Threaded | 26 | Fine | 17 | 6.4 | 110,000 | ISO 8765, DIN 960 | 10 | 000000000 | 00000 |
90 | Partially Threaded | 26 | Fine | 17 | 6.4 | 110,000 | ISO 8765, DIN 960 | 5 | 000000000 | 0000 |
100 | Partially Threaded | 26 | Fine | 17 | 6.4 | 110,000 | ISO 8765, DIN 960 | 5 | 000000000 | 00000 |
110 | Partially Threaded | 26 | Fine | 17 | 6.4 | 110,000 | ISO 8765, DIN 960 | 1 | 000000000 | 0000 |
120 | Partially Threaded | 26 | Fine | 17 | 6.4 | 110,000 | ISO 8765, DIN 960 | 5 | 000000000 | 00000 |
M10 × 1 mm | ||||||||||
40 | Partially Threaded | 26 | Extra Fine | 17 | 6.4 | 110,000 | ISO 8765, DIN 960 | 10 | 000000000 | 0000 |
45 | Partially Threaded | 26 | Extra Fine | 17 | 6.4 | 110,000 | ISO 8765, DIN 960 | 10 | 000000000 | 00000 |
50 | Partially Threaded | 26 | Extra Fine | 17 | 6.4 | 110,000 | ISO 8765, DIN 960 | 10 | 000000000 | 00000 |
60 | Partially Threaded | 26 | Extra Fine | 17 | 6.4 | 110,000 | ISO 8765, DIN 960 | 5 | 000000000 | 0000 |
80 | Partially Threaded | 26 | Extra Fine | 17 | 6.4 | 110,000 | ISO 8765, DIN 960 | 5 | 000000000 | 00000 |
100 | Partially Threaded | 26 | Extra Fine | 17 | 6.4 | 110,000 | ISO 8765, DIN 960 | 5 | 000000000 | 00000 |
M12 × 1.5 mm | ||||||||||
40 | Partially Threaded | 30 | Fine | 19 | 7.5 | 110,000 | ISO 8765, DIN 960 | 5 | 000000000 | 00000 |
45 | Partially Threaded | 30 | Fine | 19 | 7.7 | 110,000 | DIN 960 | 5 | 000000000 | 0000 |
50 | Partially Threaded | 30 | Fine | 19 | 7.5 | 110,000 | ISO 8765, DIN 960 | 10 | 000000000 | 00000 |
55 | Partially Threaded | 30 | Fine | 19 | 7.5 | 110,000 | ISO 8765, DIN 960 | 5 | 000000000 | 00000 |
60 | Partially Threaded | 30 | Fine | 19 | 7.5 | 110,000 | ISO 8765, DIN 960 | 10 | 000000000 | 00000 |
65 | Partially Threaded | 30 | Fine | 19 | 7.5 | 110,000 | ISO 8765, DIN 960 | 5 | 000000000 | 00000 |
70 | Partially Threaded | 30 | Fine | 19 | 7.5 | 110,000 | ISO 8765, DIN 960 | 5 | 000000000 | 00000 |
75 | Partially Threaded | 30 | Fine | 19 | 7.5 | 110,000 | ISO 8765, DIN 960 | 5 | 000000000 | 00000 |
80 | Partially Threaded | 30 | Fine | 19 | 7.5 | 110,000 | ISO 8765, DIN 960 | 5 | 000000000 | 00000 |
90 | Partially Threaded | 30 | Fine | 19 | 7.5 | 110,000 | ISO 8765, DIN 960 | 5 | 000000000 | 00000 |
100 | Partially Threaded | 30 | Fine | 19 | 7.5 | 110,000 | ISO 8765, DIN 960 | 5 | 000000000 | 00000 |
M12 × 1.25 mm | ||||||||||
40 | Partially Threaded | 30 | Extra Fine | 19 | 7.5 | 110,000 | ISO 8765, DIN 960 | 5 | 000000000 | 00000 |
45 | Partially Threaded | 30 | Extra Fine | 19 | 7.5 | 110,000 | ISO 8765, DIN 960 | 10 | 000000000 | 00000 |
50 | Partially Threaded | 30 | Extra Fine | 19 | 7.5 | 110,000 | ISO 8765, DIN 960 | 10 | 000000000 | 00000 |
55 | Partially Threaded | 30 | Extra Fine | 19 | 7.5 | 110,000 | ISO 8765, DIN 960 | 5 | 000000000 | 0000 |
60 | Partially Threaded | 30 | Extra Fine | 19 | 7.5 | 110,000 | ISO 8765, DIN 960 | 10 | 000000000 | 00000 |
65 | Partially Threaded | 30 | Extra Fine | 19 | 7.5 | 110,000 | ISO 8765, DIN 960 | 5 | 000000000 | 00000 |
70 | Partially Threaded | 30 | Extra Fine | 19 | 7.5 | 110,000 | ISO 8765, DIN 960 | 5 | 000000000 | 00000 |
75 | Partially Threaded | 30 | Extra Fine | 19 | 7.5 | 110,000 | ISO 8765, DIN 960 | 5 | 000000000 | 00000 |
80 | Partially Threaded | 30 | Extra Fine | 19 | 7.5 | 110,000 | ISO 8765, DIN 960 | 5 | 000000000 | 00000 |
90 | Partially Threaded | 30 | Extra Fine | 19 | 7.5 | 110,000 | ISO 8765, DIN 960 | 5 | 000000000 | 00000 |
100 | Partially Threaded | 30 | Extra Fine | 19 | 7.5 | 110,000 | ISO 8765, DIN 960 | 5 | 000000000 | 00000 |
110 | Partially Threaded | 30 | Extra Fine | 19 | 7.5 | 110,000 | ISO 8765, DIN 960 | 5 | 000000000 | 00000 |
120 | Partially Threaded | 30 | Extra Fine | 19 | 7.5 | 110,000 | ISO 8765, DIN 960 | 1 | 000000000 | 0000 |
M14 × 1.5 mm | ||||||||||
45 | Partially Threaded | 34 | Fine | 22 | 8.8 | 110,000 | ISO 8765, DIN 960 | 1 | 000000000 | 0000 |
50 | Partially Threaded | 34 | Fine | 22 | 8.8 | 110,000 | ISO 8765, DIN 960 | 1 | 000000000 | 0000 |
60 | Partially Threaded | 34 | Fine | 22 | 8.8 | 110,000 | ISO 8765, DIN 960 | 1 | 000000000 | 0000 |
65 | Partially Threaded | 34 | Fine | 22 | 8.8 | 110,000 | ISO 8765, DIN 960 | 1 | 000000000 | 0000 |
70 | Partially Threaded | 34 | Fine | 22 | 8.8 | 110,000 | ISO 8765, DIN 960 | 1 | 000000000 | 0000 |
75 | Partially Threaded | 34 | Fine | 22 | 9 | 110,000 | DIN 960 | 1 | 000000000 | 0000 |
80 | Partially Threaded | 34 | Fine | 22 | 8.8 | 110,000 | ISO 8765, DIN 960 | 1 | 000000000 | 0000 |
90 | Partially Threaded | 34 | Fine | 22 | 8.8 | 110,000 | ISO 8765, DIN 960 | 1 | 000000000 | 0000 |
100 | Partially Threaded | 34 | Fine | 22 | 8.8 | 110,000 | ISO 8765, DIN 960 | 1 | 000000000 | 0000 |
120 | Partially Threaded | 34 | Fine | 22 | 8.8 | 110,000 | ISO 8765, DIN 960 | 1 | 000000000 | 0000 |
M16 × 1.5 mm | ||||||||||
50 | Partially Threaded | 38 | Fine | 24 | 10 | 110,000 | ISO 8765, DIN 960 | 1 | 000000000 | 0000 |
55 | Partially Threaded | 38 | Fine | 24 | 10.2 | 110,000 | ISO 8765, DIN 960 | 5 | 000000000 | 00000 |
60 | Partially Threaded | 38 | Fine | 24 | 10 | 110,000 | ISO 8765, DIN 960 | 1 | 000000000 | 0000 |
70 | Partially Threaded | 38 | Fine | 24 | 10 | 110,000 | ISO 8765, DIN 960 | 1 | 000000000 | 0000 |
80 | Partially Threaded | 38 | Fine | 24 | 10 | 110,000 | ISO 8765, DIN 960 | 1 | 000000000 | 0000 |
90 | Partially Threaded | 38 | Fine | 24 | 10.2 | 110,000 | ISO 8765, DIN 960 | 1 | 000000000 | 0000 |
100 | Partially Threaded | 38 | Fine | 24 | 10 | 110,000 | ISO 8765, DIN 960 | 1 | 000000000 | 0000 |
120 | Partially Threaded | 38 | Fine | 24 | 10.2 | 110,000 | ISO 8765, DIN 960 | 1 | 000000000 | 0000 |
M18 × 1.5 mm | ||||||||||
65 | Partially Threaded | 42 | Fine | 27 | 11.7 | 110,000 | ISO 8765, DIN 960 | 1 | 000000000 | 0000 |
70 | Partially Threaded | 42 | Fine | 27 | 11.7 | 110,000 | ISO 8765, DIN 960 | 1 | 000000000 | 0000 |
80 | Partially Threaded | 42 | Fine | 27 | 11.7 | 110,000 | ISO 8765, DIN 960 | 1 | 000000000 | 0000 |
90 | Partially Threaded | 42 | Fine | 27 | 11.7 | 110,000 | ISO 8765, DIN 960 | 1 | 000000000 | 0000 |
100 | Partially Threaded | 42 | Fine | 27 | 11.7 | 110,000 | ISO 8765, DIN 960 | 1 | 000000000 | 0000 |