Top Shelf M8 Hex Socket Head Cap Screws And Bolts 10 Piece Gear 145 Millimeter Length 12.9 Grade Carbon Steel Build Partially Threaded Black Oxide Coating Allen Key Drive Built Tough Fasteners

M8 x 145mm Hex Socket Head Caps 12.9 Grade Steel Bolts Set
✔️ M8 thread, 145mm length, 34mm partial thread, black oxide, 6mm drive

This pack of twenty M8 hex socket head cap screws gives you reliable hardware for shop repairs, machine assembly, and heavy duty framing jobs where tight torque resistance matters.

✅ Thread diameter measures exactly 8 millimeters for standard metric gear
✅ Overall screw length sits at 145 millimeters with a 145mm/5.71in reach
✅ Partially threaded design leaves 34 millimeters of clean shank beneath the head
✅ Grade twelve point nine carbon steel delivers strong hold and resists bending
✅ Black oxide surface protects against rust while keeping a non reflective matte look
✅ Includes twenty pieces per pack with matching six millimeter wrench heads

💡 What makes a long threaded grade 12.9 hex socket bolt more reliable than standard hardware for automotive brackets?
The real advantage comes down to material science and how deep the grip bites into metal frames.
- Premium carbon steel ratings prevent snap failures when cranking lug nuts or engine mounts hard
- The black oxide layer stops road grime from seizing up the threads while you work at the shop

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