HOLO-KROME 72346 براغي رأس مقبس مقاس 7/8-9 × 3 بوصة | محرك سداسي مقبس | سبيكة فولاذ معالجة حرارياً أسود أكسيد (10/عبوة)

Used a few of these to secure a new jig on my milling table and the black oxide finish is holding up nicely against the metal shavings. The hex socket drive felt precise and snug going in.

Finally got around to swapping out some older bolts on my jig and these went in smooth with a hex key, no stripped heads. The 7/8-9 threads are cut clean and the alloy steel feels solid for the money. For a ten-pack at this price, they're a no-brainer for shop use.

The thermal black oxide finish on these is exactly what I needed for clamping fixtures that see daily oil and grime—wiped them down after a month and they still look fresh. The 3/4" socket depth grabs the hex wrench solidly without rounding out, even on the 7/8-9 threads when I'm torquing hard. Slig