HOLO-KROME 69002 #10-32 × 3/8 بوصة مسامير رأس مقبس | محرك سداسي منخفض الرأس | سبيكة فولاذ أكسيد أسود حراري (100/عبوة)

The black oxide finish on these screws is holding up perfectly in my jig fixture, no rust after a week of use. I swapped out some stainless ones for these and the hex drive feels much more secure in tight spaces. Exactly what I needed for precision assembly work.

I needed exactly .190" grip length for a jig I was building, and these low head screws fit flush in a tight clearance. The hex socket drives cleanly without stripping, and the whole pack was uniform in thread.

The black oxide finish is holding up well with no wear after several assembly cycles, and the socket drive bites perfectly every time. These fit my jig fixtures exactly as needed.