دبابيس زنبركية 5/16" X 1-7/8" | مشقوقة | فولاذ مطلي بالزنك (500 / عبوة)

Pressing these into place for a heavy-duty jig, they held fast even under constant vibration from the drill press. The zinc coating gives them a nice smooth finish that doesn't flake off during installation. Exactly what I needed for shear load alignment.

Got the full 500-count box and every single pin came out of the package with a clean zinc finish, no burrs or bent ends. They slid into my alignment holes with just the right amount of resistance, and they’re holding up fine under the vibration from my machine. Solid value for the quantity.

Had a tough time finding 5/16" spring pins locally that didn't feel cheap, but these steel zinc plated ones held up well under repeated hammering. The slotted design made installation straightforward, and the entire box of 500 arrived without a single bent pin.