براغي رأس أسطواني M8-1 X 25mm | محرك سداسي داخلي | فئة 12.9 من سبائك الصلب (150/عبوة)

Installing these into a precision fixture was effortless; the hex drive seated perfectly without any cam-out. The 12.9 alloy steel feels noticeably harder than the standard hardware I've used before, so I'm confident they'll hold up under repeated adjustments.

Used these for a jig I'm building and the hex socket drive made installation a breeze. The 12.9 alloy steel feels tough and the threads are super clean.

Pulled these out of the box and the threads are clean and uniform, no burs or rough edges. They seated perfectly in my drill jig without any binding. Hard to beat 12.9 alloy steel for the price.