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About Hex Head Screws and Bolts
Choose a hex head fastener with the right threading, thread size, material, and strength for your equipment.
Medium-Strength Metric Class 8.8 Steel Hex Head Screws

Partially Threaded
Twice as strong as low-strength steel screws, these metric Class 8.8 steel screws can be used to fasten most machinery and equipment. Dimensions meet ISO (formerly DIN) or DIN specifications. Length is measured from under the head.
Zinc-plated steel screws are a good choice for most applications. They 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.
Head | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Lg., mm | Threading | Min. Thread Lg., mm | Thread Spacing | Wd., mm | Ht., mm | Tensile Strength, psi | Specifications Met | Pkg. Qty. | Pkg. | |
Zinc-Plated Class 8.8 Steel | ||||||||||
M8 × 1 mm | ||||||||||
| 40 | Partially Threaded | 22 | Fine | 13 | 5.3 | 110,000 | ISO 898-1, ISO 8765, DIN 960 | 25 | 91180A542 | 000000 |
| 45 | Partially Threaded | 22 | Fine | 13 | 5.3 | 110,000 | ISO 898-1, ISO 8765, DIN 960 | 10 | 91180A544 | 0000 |
| 50 | Partially Threaded | 22 | Fine | 13 | 5.3 | 110,000 | ISO 898-1, ISO 8765, DIN 960 | 25 | 91180A546 | 00000 |
| 55 | Partially Threaded | 22 | Fine | 13 | 5.3 | 110,000 | ISO 898-1, ISO 8765, DIN 960 | 10 | 91180A548 | 0000 |
| 60 | Partially Threaded | 22 | Fine | 13 | 5.3 | 110,000 | ISO 898-1, ISO 8765, DIN 960 | 10 | 91180A550 | 0000 |
| 70 | Partially Threaded | 22 | Fine | 13 | 5.4 | 110,000 | ISO 898-1, ISO 8765, DIN 960 | 10 | 91280A021 | 00000 |
| 80 | Partially Threaded | 22 | Fine | 13 | 5.3 | 110,000 | ISO 898-1, ISO 8765, DIN 960 | 10 | 91180A407 | 00000 |
| 100 | Partially Threaded | 22 | Fine | 13 | 5.3 | 110,000 | ISO 898-1, ISO 8765, DIN 960 | 1 | 91180A559 | 0000 |
M10 × 1.25 mm | ||||||||||
| 35 | Partially Threaded | 26 | Fine | 17 | 6.4 | 110,000 | ISO 898-1, ISO 8765, DIN 960 | 10 | 91180A635 | 00000 |
| 40 | Partially Threaded | 26 | Fine | 17 | 6.4 | 110,000 | ISO 898-1, ISO 8765, DIN 960 | 10 | 91180A638 | 00000 |
| 45 | Partially Threaded | 26 | Fine | 17 | 6.4 | 110,000 | ISO 898-1, ISO 8765, DIN 960 | 10 | 91180A640 | 00000 |
| 50 | Partially Threaded | 26 | Fine | 17 | 6.4 | 110,000 | ISO 898-1, ISO 8765, DIN 960 | 10 | 91180A642 | 00000 |
| 55 | Partially Threaded | 26 | Fine | 17 | 6.4 | 110,000 | ISO 898-1, ISO 8765, DIN 960 | 10 | 91180A643 | 00000 |
| 60 | Partially Threaded | 26 | Fine | 17 | 6.4 | 110,000 | ISO 898-1, ISO 8765, DIN 960 | 10 | 91180A644 | 00000 |
| 65 | Partially Threaded | 26 | Fine | 17 | 6.4 | 110,000 | ISO 898-1, ISO 8765, DIN 960 | 10 | 91180A646 | 00000 |
| 70 | Partially Threaded | 26 | Fine | 17 | 6.4 | 110,000 | ISO 898-1, ISO 8765, DIN 960 | 10 | 91180A649 | 00000 |
| 75 | Partially Threaded | 26 | Fine | 17 | 6.4 | 110,000 | ISO 898-1, ISO 8765, DIN 960 | 5 | 91180A652 | 00000 |
| 80 | Partially Threaded | 26 | Fine | 17 | 6.4 | 110,000 | ISO 898-1, ISO 8765, DIN 960 | 10 | 91180A654 | 00000 |
| 90 | Partially Threaded | 26 | Fine | 17 | 6.4 | 110,000 | ISO 898-1, ISO 8765, DIN 960 | 5 | 91180A658 | 0000 |
| 100 | Partially Threaded | 26 | Fine | 17 | 6.4 | 110,000 | ISO 898-1, ISO 8765, DIN 960 | 5 | 91180A662 | 00000 |
| 110 | Partially Threaded | 26 | Fine | 17 | 6.4 | 110,000 | ISO 898-1, ISO 8765, DIN 960 | 1 | 91180A663 | 0000 |
| 120 | Partially Threaded | 26 | Fine | 17 | 6.4 | 110,000 | ISO 898-1, ISO 8765, DIN 960 | 5 | 91180A664 | 00000 |
M10 × 1 mm | ||||||||||
| 40 | Partially Threaded | 26 | Extra Fine | 17 | 6.4 | 110,000 | ISO 898-1, ISO 8765, DIN 960 | 10 | 91180A620 | 00000 |
| 45 | Partially Threaded | 26 | Extra Fine | 17 | 6.4 | 110,000 | ISO 898-1, ISO 8765, DIN 960 | 10 | 91180A622 | 00000 |
| 50 | Partially Threaded | 26 | Extra Fine | 17 | 6.4 | 110,000 | ISO 898-1, ISO 8765, DIN 960 | 10 | 91180A625 | 00000 |
| 60 | Partially Threaded | 26 | Extra Fine | 17 | 6.4 | 110,000 | ISO 898-1, ISO 8765, DIN 960 | 5 | 91180A627 | 00000 |
| 80 | Partially Threaded | 26 | Extra Fine | 17 | 6.4 | 110,000 | ISO 898-1, ISO 8765, DIN 960 | 5 | 91180A632 | 00000 |
| 100 | Partially Threaded | 26 | Extra Fine | 17 | 6.4 | 110,000 | ISO 898-1, ISO 8765, DIN 960 | 5 | 91180A415 | 00000 |
M12 × 1.5 mm | ||||||||||
| 40 | Partially Threaded | 30 | Fine | 19 | 7.5 | 110,000 | ISO 898-1, ISO 8765, DIN 960 | 5 | 91180A750 | 00000 |
| 50 | Partially Threaded | 30 | Fine | 19 | 7.5 | 110,000 | ISO 898-1, ISO 8765, DIN 960 | 10 | 91180A753 | 00000 |
| 55 | Partially Threaded | 30 | Fine | 19 | 7.5 | 110,000 | ISO 898-1, ISO 8765, DIN 960 | 5 | 91180A754 | 00000 |
| 60 | Partially Threaded | 30 | Fine | 19 | 7.5 | 110,000 | ISO 898-1, ISO 8765, DIN 960 | 10 | 91180A755 | 00000 |
| 65 | Partially Threaded | 30 | Fine | 19 | 7.5 | 110,000 | ISO 898-1, ISO 8765, DIN 960 | 5 | 91180A756 | 00000 |
| 70 | Partially Threaded | 30 | Fine | 19 | 7.5 | 110,000 | ISO 898-1, ISO 8765, DIN 960 | 5 | 91180A757 | 00000 |
| 75 | Partially Threaded | 30 | Fine | 19 | 7.5 | 110,000 | ISO 898-1, ISO 8765, DIN 960 | 5 | 91180A758 | 00000 |
| 80 | Partially Threaded | 30 | Fine | 19 | 7.5 | 110,000 | ISO 898-1, ISO 8765, DIN 960 | 5 | 91180A760 | 00000 |
| 90 | Partially Threaded | 30 | Fine | 19 | 7.5 | 110,000 | ISO 898-1, ISO 8765, DIN 960 | 5 | 91180A762 | 00000 |
| 100 | Partially Threaded | 30 | Fine | 19 | 7.5 | 110,000 | ISO 898-1, ISO 8765, DIN 960 | 5 | 91180A765 | 00000 |
M12 × 1.25 mm | ||||||||||
| 40 | Partially Threaded | 30 | Extra Fine | 19 | 7.5 | 110,000 | ISO 898-1, ISO 8765, DIN 960 | 5 | 91180A715 | 00000 |
| 45 | Partially Threaded | 30 | Extra Fine | 19 | 7.5 | 110,000 | ISO 898-1, ISO 8765, DIN 960 | 10 | 91180A717 | 00000 |
| 50 | Partially Threaded | 30 | Extra Fine | 19 | 7.5 | 110,000 | ISO 898-1, ISO 8765, DIN 960 | 10 | 91180A724 | 00000 |
| 55 | Partially Threaded | 30 | Extra Fine | 19 | 7.5 | 110,000 | ISO 898-1, ISO 8765, DIN 960 | 5 | 91180A726 | 00000 |
| 60 | Partially Threaded | 30 | Extra Fine | 19 | 7.5 | 110,000 | ISO 898-1, ISO 8765, DIN 960 | 10 | 91180A728 | 00000 |
| 65 | Partially Threaded | 30 | Extra Fine | 19 | 7.5 | 110,000 | ISO 898-1, ISO 8765, DIN 960 | 5 | 91180A730 | 00000 |
| 70 | Partially Threaded | 30 | Extra Fine | 19 | 7.5 | 110,000 | ISO 898-1, ISO 8765, DIN 960 | 5 | 91180A731 | 00000 |
| 75 | Partially Threaded | 30 | Extra Fine | 19 | 7.5 | 110,000 | ISO 898-1, ISO 8765, DIN 960 | 5 | 91180A733 | 00000 |
| 80 | Partially Threaded | 30 | Extra Fine | 19 | 7.5 | 110,000 | ISO 898-1, ISO 8765, DIN 960 | 5 | 91180A735 | 00000 |
| 90 | Partially Threaded | 30 | Extra Fine | 19 | 7.5 | 110,000 | ISO 898-1, ISO 8765, DIN 960 | 5 | 91180A737 | 00000 |
| 100 | Partially Threaded | 30 | Extra Fine | 19 | 7.5 | 110,000 | ISO 898-1, ISO 8765, DIN 960 | 5 | 91180A719 | 00000 |
| 110 | Partially Threaded | 30 | Extra Fine | 19 | 7.5 | 110,000 | ISO 898-1, ISO 8765, DIN 960 | 5 | 91180A721 | 00000 |
| 120 | Partially Threaded | 30 | Extra Fine | 19 | 7.5 | 110,000 | ISO 898-1, ISO 8765, DIN 960 | 1 | 91180A723 | 0000 |
M14 × 1.5 mm | ||||||||||
| 45 | Partially Threaded | 34 | Fine | 22 | 8.8 | 110,000 | ISO 898-1, ISO 8765, DIN 960 | 1 | 91180A785 | 0000 |
| 50 | Partially Threaded | 34 | Fine | 22 | 8.8 | 110,000 | ISO 898-1, ISO 8765, DIN 960 | 1 | 91180A788 | 0000 |
| 60 | Partially Threaded | 34 | Fine | 22 | 8.8 | 110,000 | ISO 898-1, ISO 8765, DIN 960 | 1 | 91180A790 | 0000 |
| 65 | Partially Threaded | 34 | Fine | 22 | 8.8 | 110,000 | ISO 898-1, ISO 8765, DIN 960 | 1 | 91180A791 | 0000 |
| 70 | Partially Threaded | 34 | Fine | 22 | 8.8 | 110,000 | ISO 898-1, ISO 8765, DIN 960 | 1 | 91180A792 | 0000 |
| 80 | Partially Threaded | 34 | Fine | 22 | 8.8 | 110,000 | ISO 898-1, ISO 8765, DIN 960 | 1 | 91180A794 | 0000 |
| 90 | Partially Threaded | 34 | Fine | 22 | 8.8 | 110,000 | ISO 898-1, ISO 8765, DIN 960 | 1 | 91180A798 | 0000 |
| 100 | Partially Threaded | 34 | Fine | 22 | 8.8 | 110,000 | ISO 898-1, ISO 8765, DIN 960 | 1 | 91180A795 | 0000 |
| 120 | Partially Threaded | 34 | Fine | 22 | 8.8 | 110,000 | ISO 898-1, ISO 8765, DIN 960 | 1 | 91180A802 | 0000 |
M16 × 1.5 mm | ||||||||||
| 50 | Partially Threaded | 38 | Fine | 24 | 10 | 110,000 | ISO 898-1, ISO 8765, DIN 960 | 1 | 91180A814 | 0000 |
| 55 | Partially Threaded | 38 | Fine | 24 | 10.2 | 110,000 | ISO 898-1, ISO 8765, DIN 960 | 5 | 91280A024 | 00000 |
| 60 | Partially Threaded | 38 | Fine | 24 | 10 | 110,000 | ISO 898-1, ISO 8765, DIN 960 | 1 | 91180A818 | 0000 |
| 70 | Partially Threaded | 38 | Fine | 24 | 10 | 110,000 | ISO 898-1, ISO 8765, DIN 960 | 1 | 91180A822 | 0000 |
| 80 | Partially Threaded | 38 | Fine | 24 | 10 | 110,000 | ISO 898-1, ISO 8765, DIN 960 | 1 | 91180A826 | 0000 |
| 90 | Partially Threaded | 38 | Fine | 24 | 10.2 | 110,000 | ISO 898-1, ISO 8765, DIN 960 | 1 | 91280A025 | 0000 |
| 100 | Partially Threaded | 38 | Fine | 24 | 10 | 110,000 | ISO 898-1, ISO 8765, DIN 960 | 1 | 91180A830 | 0000 |
| 120 | Partially Threaded | 38 | Fine | 24 | 10.2 | 110,000 | ISO 898-1, ISO 8765, DIN 960 | 1 | 91280A026 | 0000 |
M18 × 1.5 mm | ||||||||||
| 65 | Partially Threaded | 42 | Fine | 27 | 11.7 | 110,000 | ISO 898-1, ISO 8765, DIN 960 | 1 | 91280A028 | 0000 |
| 70 | Partially Threaded | 42 | Fine | 27 | 11.7 | 110,000 | ISO 898-1, ISO 8765, DIN 960 | 1 | 91280A029 | 0000 |
| 80 | Partially Threaded | 42 | Fine | 27 | 11.7 | 110,000 | ISO 898-1, ISO 8765, DIN 960 | 1 | 91280A030 | 0000 |
| 90 | Partially Threaded | 42 | Fine | 27 | 11.7 | 110,000 | ISO 898-1, ISO 8765, DIN 960 | 1 | 91280A031 | 0000 |
| 100 | Partially Threaded | 42 | Fine | 27 | 11.7 | 110,000 | ISO 898-1, ISO 8765, DIN 960 | 1 | 91280A032 | 0000 |
M20 × 1.5 mm | ||||||||||
| 80 | Partially Threaded | 46 | Extra Fine | 30 | 12.7 | 110,000 | ISO 898-1, ISO 8765, DIN 960 | 1 | 91280A035 | 0000 |
| 100 | Partially Threaded | 46 | Extra Fine | 30 | 12.7 | 110,000 | ISO 898-1, ISO 8765, DIN 960 | 1 | 91280A036 | 0000 |
| 120 | Partially Threaded | 46 | Extra Fine | 30 | 12.7 | 110,000 | ISO 898-1, ISO 8765, DIN 960 | 1 | 91280A037 | 0000 |

























