براغي كتف مقبس 1/2 × 4 1/4 بوصة | رأس مقبس | محرك مقبس | سبيكة فولاذ (25/عبوة)

The hex drive made installation straightforward with a standard Allen key, and the precision-ground shoulder fits snugly into the bearing housing without any play. Exactly what I needed for a smooth-rolling mechanism.

These worked perfectly as pivot axles for a jig I'm building; the 4 1/4" length is exactly right and the shoulder is dead-on consistent. Each screw seated cleanly in the hex drive without any wobble, and the alloy steel feels solid enough to handle real load.

The precision-ground shoulder on these screws made them perfect for the pivot points in my jig; they rotate smoothly with almost no wobble. Definitely sturdy enough for heavy-duty use, and the hex socket drive made installation with an Allen key super easy.