براغي كتف بمقبس M4 × 10 مم | رأس مقبس | محرك مقبس | فولاذ مقاوم للصدأ 18/8 (25 / عبوة)

I needed precision axles for a small custom build, and these screws have the tightest tolerance on that shoulder I've seen at this price point. They thread smoothly into aluminum without any binding. Exactly what I needed for a clean pivot.

I’ve used these as pivot pins for a small jig, and the precision-ground shoulder makes for a surprisingly smooth, wobble-free fit in the bearing bore. The 18/8 stainless finish also feels solid and corrosion-resistant, so no worries about rust in a humid shop.

The shoulder on these is machined so precisely that the hex wrench slots in without any wobble. I used them as axle pins on a camera rig and they spin perfectly true, and the 18/8 stainless finish hasn't shown a single speck of rust after a few humid weeks.