2Pcs Heavy Duty M16 X 120Mm Hex Socket Head Cap Screws Bolts, 12.9 Grade Carbon Steel Allen Drive Fasteners With Full Thread And Black Oxide Coating Built Tough As Nails

Heavy Duty M16 Hex Socket Head Screws Black Oxide
✔️ 12.9 grade carbon steel, 2mm pitch, full thread design

Your project needs solid clamping power without stripping nuts. This two pack of M16 x 120mm hex socket cap screws brings 1220 N/mm² tensile strength directly to your bench. Mechanics and DIYers rely on these metric bolts for generator skids, trailer racks, and shop jigs. The dark oxide layer fights rust so you can tighten them up repeatedly.

✅ Metric thread size M16 with a 2mm pitch for secure grip
✅ 12.9 strength rating delivers 1220 N/mm² tensile performance
✅ Full threaded shank and 14mm Allen hex drive head
✅ Hardened to 39 to 44 HRC for long service life under pressure

💡 What makes 12.9 grade fasteners handy for heavy machinery applications?
- Hex socket head cap screws resist shear stress better than external wrench drives
- The black oxide coating handles moisture and light chemical exposure without chipping during maintenance cycles
- Picking M16 x 120mm bolts gives you adequate engagement depth for thick steel plates and structural brackets

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