3/4" x 3 3/4" 套筒肩螺絲 | 套筒頭 | 套筒驅動 | 18/8不鏽鋼 (10個/包)

I needed a precise pivot for a jig I was building, and these screws fit perfectly. The 3/4" shoulder is dead-on accurate to the spec and makes for smooth rotation.

Used a pair of these as the pivot axle for a folding jig and the 18/8 stainless has held up perfectly through heavy use. The hex socket drive made installation a breeze with a standard Allen key. They're a bit pricey for ten pieces, but you can feel the quality the moment you thread them in.

The shoulder on these is machined dead-on—I used them as pivot pins for a jig and the hex drive seated perfectly without any slop. They’re exactly the right length for a snug fit, and the 18/8 finish wiped clean easily.