7/16-14 x 2-1/2吋 內六角螺絲 | 六角驅動 | 美國製造 | 合金鋼熱處理黑色氧化 (400/包)

Drove these into a steel fixture for a jig I've been building, and the black oxide finish gave them a nice uniform look right out of the box. The hex socket seated the allen wrench cleanly with zero stripping, which mattered on the 400 pieces I went through.

I needed a bulk supply of high-strength fasteners for my shop jigs, and these socket cap screws came in a solid 400-count box that's heavier than I expected. The hex socket drive engaged cleanly with my Allen key, and the black oxide coating feels durable.

I needed a batch of high-strength screws for some tooling repairs, and these hex socket caps fit perfectly. The black oxide finish seems durable and the threads cut cleanly, though I wish the packaging was a bit more organized for bulk use.