مسامير نقل 5/16-18 × 1/2 بوصة | ملولبة بالكامل | فولاذ عادي A307 Grade A (300 / عبوة)

Used these for a shed build and the smooth rounded heads gave it a clean finish. The square neck locked right into the wood, no spinning at all. A full box of 300 was plenty, and the price per bolt felt fair for the quantity.

The square neck under the head grabbed tight on the first pull, no spinning or cursing on this job. For 300 bolts in plain steel at this price, they’re a solid buy.

I needed a bunch of carriage bolts for a project and the square neck under the head really did its job, gripping into the wood so the bolt stayed put while I tightened the nut. A full 300 in the pack meant I didn’t have to stop and order more halfway through.