براغي رأس مقبس M4-0.7 × 40 مم | محرك سداسي | ملولبة جزئيًا | ستانلس ستيل 316 (300 / عبوة)

The partially threaded design makes seating these in blind holes way easier than I expected, and the 316 stainless finish is flawless across all 300 pieces. I've already used two dozen on a jig build and the hex drive hasn't stripped once.

The hex socket drive is a perfect fit for my jigs and fixtures, and the 316 stainless steel gives me confidence they won't corrode. Used a dozen to secure a new machine guard, and the partially threaded design held tight.

Finally found some M4 hardware that doesn't strip out—the hex socket drive grabs perfectly with my Allen key. The 316 stainless feels solid, and I love that they're partially threaded for clamping down jigs.