براغي غطاء مقبس M6-1 × 40 مم | محرك مقبس سداسي | ملولب جزئيًا | فولاذ سبائكي من الفئة 8.8 مطلي بالزنك (400 / عبوة)

The partial threading on these 40mm screws made them perfect for aligning a jig without binding, and they came out of the box with a consistent, clean finish. All 400 pieces look identical under a magnifier, which is exactly what I wanted for repeat builds.

I needed a batch of precision fasteners for a jig I’m building, and these M6-1 x 40mm screws fit perfectly—the hex socket drive made install a breeze. The partially threaded design gave just the right bite for the load-bearing joint.

The zinc plating on these 8.8 alloy steel screws is holding up nicely against the shop grime, and the hex socket drive seats cleanly without stripping—even on the third reassembly of my jig. The 40mm length with partial threading gave me just the grip I needed for a tight clamp setup.