براغي ذات رأس مقبس 5/8-11 × 3-1/4 بوصة | محرك سداسي المقبس | حبيبات نايلون | ملولبة جزئياً | فولاذ سبائكي أسود حراري (25 / عبوة)

Exactly what I needed for a tight spot on a tooling fixture—the hex drive seated cleanly and the nylon pellet held fast without any loosening. The black oxide finish looks durable and should resist rust well in my shop.

Used a few of these to rebuild a jig at work, and the nylon pellet in the threads holds adjustment way better than set screws I’ve tried before. The hex socket drive on the 3-1/4" length made installation easy even in tight spots. Solid purchase for tooling.

The black oxide finish on these 5/8-11 cap screws gave them a solid, non-slip grip right out of the pack, and the partially threaded length was spot-on for the jig I'm building. They seated cleanly with a hex key, no wobble, and the nylon pellet adds a reassuring bite that kept everything locked dow