#5-40 × 5/16" مسامير آلية | رأس دائري مع محرك مشقوق | صلب مطلي بالزنك (2000 / عبوة)

The zinc plating looks clean and even across all 2,000 pieces, and the slotted drive seated perfectly in my panel jig without any wobble. These machine screws feel sturdy for metal-to-metal fastening, and the quantity will last me through several projects.

Needed these for a small electronics enclosure and the zinc plating on these looks consistent across the whole batch, with a smooth slot for the screwdriver. The 2000 count should last me through several projects.

Finally found bulk #5-40 screws that aren't bent or missing threads—these are uniformly machined and the zinc plating on all 2,000 is consistent, no rust spots. Used a dozen to secure a metal junction box lid, and the slotted drive bit caught cleanly without stripping.