15 Piece M5 X 135mm Hex Socket Head Cap Screws, 12.9 Grade Carbon Steel Bolts, Partially Threaded Allen Drive, Black Oxide Finish, Tough As Nails Precision Heavy Duty Machine Hardware

M5x135mm Hex Head Machine Screws Set 12.9 Grade Carbon Steel
✔️ M5 x 135mm partially threaded carbon machine fasteners

This set of fifteen hex socket cap screws delivers high clamping force for heavy duty machinery and precision equipment assemblies. You will find these partially threaded bolts handy inside automotive shops, industrial manufacturing lines, and garage workbenches where strong metal joining is required.

✅ M5 metric threads measuring 0.20 inch with 0.8mm pitch for secure grip
✅ 135mm overall length featuring 0.83 inch with 21mm of cut threading
✅ Solid 8.2mm head diameter pairing with 0.32 inch width and 5mm height
✅ 4mm hex wrench size equating to 0.16 inch built into the socket drive top

💡 What makes partially threaded hex head cap screws the smart pick for tough engine and frame repairs?
These handy hardened steel bolts handle serious vibration without loosening up during heavy use.
- High grade ten point nine alloy handles extreme shear loads without bending or snapping
- Cut threads grip nuts securely while the smooth shank slides through mounting brackets effortlessly
- Dark oxide treatment kills rust on workshop tables and keeps greasy floors from staining hands

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