براغي ذات رأس أسطواني #8-36 × 1-1/2 بوصة | رأس مسطح مع مقبس سداسي | سبيكة فولاذ مؤكسد أسود حراريًا (200/عبوة)

Threads are clean and the hex drive holds up to repeated wrenching—the black oxide finish actually keeps rust off between uses. Used them on a couple of tooling fixtures; the #8-36 size is exact, no chasing needed. Solid buy for the price.

Used them for a fixture jig at work and the alloy steel took the torque without stripping. The flat head seats flush nicely, which mattered for the clearance I needed. The hex socket drive made install straightforward even in a tight spot.

The black oxide finish on these screws looks clean and uniform, which matters when they're visible on a jig. Threads cut smoothly into the alloy steel, and the flat head sits flush without any wobble during assembly.