M5-0.8 x 10mm 內六角螺絲 | 六角驅動 | 全螺紋 | 8.8 級合金鋼熱處理黑氧化 (600 顆/包)

The black oxide finish is holding up great in my jigs—no rust after a week of coolant exposure. Class 8.8 strength is solid for the torque I’m putting on them, and the hex socket drive bites cleanly every time.

Putting together a batch of tooling fixtures, and the black oxide finish on these M5 screws gives them a nice, uniform look while still driving smoothly. The hex socket holds the wrench securely, and the fully threaded design made getting the right grip depth a breeze. For the price per piece, you r

I'm assembling a small jig for my workshop and these M5 screws fit perfectly—the hex drive made quick work of seating them. The black oxide finish looks uniform across all 600 pieces.