براغي رأس مقبس 2-4-1/2 × 7 بوصة | محرك مقبس سداسي | خيط جزئي | فولاذ سبائكي مؤكسد أسود حراري

Installed these in a jig I was building and the hex socket drive made torquing them down really easy. The black oxide finish gives them a nice, uniform look against the steel plate.

The 7-inch length was exactly right for bolting through my jig frame with room for the washer, and the hex socket drive grabbed cleanly without any stripping. The thermal black oxide finish left a uniform, matte look that should hold up fine in the shop. These feel solid for the price.

The black oxide finish on these screws gives them a professional look and seems to resist rust well, at least in my shop. Threads cut cleanly into the steel I was working with, and the 7-inch length gave me plenty of grip for a jig I built. Exactly what I needed for heavy-duty tooling.