براغي رأس مقبس 5/8-11 × 3-1/4 بوصة | محرك مقبس سداسي | صنع في الولايات المتحدة | فولاذ سبائكي مؤكسد أسود حراريًا (75 قطعة/عبوة)

The hex socket drive fit my torque wrench perfectly with zero play, and all 75 screws came out with a consistent, clean thread cut. I've used a few boxes on our machining fixtures now and not a single stripped head or burr to complain about.

The thermal black oxide finish is holding up great so far, no rust spots after a week in my shop. Hex socket drive seated cleanly with an Allen key, and the alloy steel feels plenty rigid for a jig I'm building.

Needed a batch of 5/8-11 x 3-1/4" socket cap screws for a jig I’m building, and these from the 75-pack fit perfectly without any burs. The hex socket drive gave a solid bite with my Allen wrench, and the thermal black oxide finish looks durable and clean.