3/4-10 x 3" 內六角螺絲 | 六角驅動 | 美國製造 | 合金鋼熱處理黑色氧化 (25 / 包)

The black oxide finish on these screws looks professional and seems like it will resist rust well in my shop environment. The hex socket drive made installation quick and gave a solid, secure fit for the jig I was building.

Used these for a shop fixture jig and the hex socket drive gripped perfectly, no stripping even torquing them down hard. The 3/4-10 threads cut clean into my tooling plate, and the black oxide looks sharp under work lights.

The black oxide finish on these is uniform and tough—no flaking even after I torqued them down on a jig. Threads cut cleanly into 3/4-10 holes, and all 25 in the pack measured spot-on.