M10-1.5 X 20mm 內六角螺絲 | 內六角驅動 | 全螺紋 | 8.8級合金鋼熱處理黑色氧化物 (200 / Pkg.)

Used these to build a custom jig for my drill press and the fully threaded length gave me a solid, precise fit. At 12.9 hardness they held up under heavy torque without stripping, exactly what I needed for metalworking.

Ordered these for a jig I was building and the black oxide finish looks sharp while the threads cut cleanly without any galling. The 20mm length was perfect for my fixture plates, and the hex socket drive grabbed snugly every time. Class 8.8 steel feels solid for the price, definitely a good buy.

The hex socket drive seated perfectly on my Allen key with zero wobble, and the 20mm length was exactly right for my jig setup. Over a weekend of assembly work, not a single one stripped or showed any wear on the threads. This pack of 200 will last me a long time.