براغي تثبيت مقبس كوب نقطة 3/8-16 X 2-1/2" مع رقعة نايلون | فولاذ سبائكي (100 / عبوة)

The cup point tip seated these screws flush without any marring, which was a huge help on my tight jig fixture. The alloy steel feels solid and the nylon patch held firm even after I had to back one out and re-drive it.

The nylon patch holds tight even after a few removals, which surprised me for the price. The cup point bites into the shaft cleanly without stripping, and the alloy steel feels solid. These are my go-to for locking down pulleys now.

Enfin des vis sans tête qui tiennent bien là où on les met. Le nylon patch sur le filetage fait vraiment la différence, pas besoin de frein-filet en plus. Je les utilise pour bloquer des poulies sur un arbre et le bout en cuvette s’enfonce parfaitement sans endommager la surface.