M20-2.5 X 60mm 內六角螺絲 | 平頭六角插座驅動 | 全牙 | Class 10.9 合金鋼熱處理黑色氧化物 (25個/包)

Needed a heavy-duty set for a press fixture I'm building, and these fully threaded M20s took the torque without a hitch. The black oxide coating looks clean and seems like it'll resist corrosion well.

Threaded them into a jig plate for a repair job and the 10.9 alloy steel took the torque without a hint of flex. The hex socket seated perfectly with my driver, no wobble or stripping. These are solid, precise fasteners for the money.

The black oxide finish gives these a nice, even look that hasn't chipped during assembly, and the hex socket drive bites cleanly without stripping. They threaded into my jig plates smoothly, and the 10.9 alloy steel feels properly tough for the precision work I'm doing.