براغي ماكينة 5/16-18 × 1-1/2" | رأس مسطح مشقوق | فولاذ عادي (400/عبوة)

Got a full 400-count box for some shop shelving builds and every single screw seated flush without any burrs. The slotted heads grab my flat-blade driver nicely, no cam-out frustrations. Exactly what I needed for indoor framing duty.

The threads are clean and consistent across all 400 pieces, which made driving them into pre-drilled wood much smoother than I expected. I used a handful for assembling a workbench in my garage, and the flat heads sit perfectly flush.

The slotted heads on these machine screws catch my screwdriver perfectly without slipping, which I really appreciate when working in tight spaces. For $20 I got 400 pieces, so this box will last me through several projects.