مسامير آلة سداسية 5/16-18 × 1-1/4 بوصة | فولاذ مطلي بالزنك | خيط جزئي (100 / عبوة)

The unthreaded grip on these bolts made aligning my heavy-duty shelf brackets so much easier than with fully threaded ones. They seated perfectly flush in the predrilled holes.

Installed these on a trailer hitch bracket and the partially threaded shank gave just the right amount of grip before the threads engaged. The zinc coating has held up well through a week of rain.

The zinc plating on these bolts is really smooth and consistent, no flaking off when I tightened them down. I used them to mount some brackets in my garage and the unthreaded grip length made alignment much easier.