براغي ذات رأس مقبس 1/4-20 × 2-1/2" | محرك مقبس سداسي | صناعة أمريكية | فولاذ سبائك مع أسود حراري (1350/عبوة)

I needed a full box for a jig project and was glad these are USA made—the black oxide finish feels durable and the hex socket drive bit snugged in perfectly.

Used a handful of these to secure a workholding fixture on my mill table, and the black oxide finish held up great against the coolant spray. The hex socket drive made it easy to torque them down evenly, and the full 2-1/2" length gave plenty of thread engagement for my setup.

Pulled these out of the box for a jig build and the black oxide finish looks really clean, with no burs on the threads. The hex socket seated perfectly on my driver, and each bolt threaded smoothly into my fixture.