براغي ذات رأس مقبس سداسي مقاس 3/8-24 × 1/2 بوصة | مشبك نايلون | كامل الخيط | فولاذ سبائكي مؤكسد أسود حراري (100/عبوة)

The nylon patch is a nice touch—these hold their torque in my jig without backing out, even under vibration. The heat-treated finish has a solid, matte look that feels durable, and the threading was clean straight out of the pack.

The black oxide finish on these screws is tough and consistent, which made them a perfect fit for the jig I was building. They seated cleanly with a hex key, and the nylon patch held firm during testing. Exactly what I needed for precision work.

I needed a batch of 3/8-24 x 1/2" socket cap screws for a jig I'm building, and the hex socket drive makes tightening them in tight spots much easier. The alloy steel feels sturdy, and the nylon patch should help keep them from vibrating loose during use.