براغي رأس أسطوانية 3/8-16 × 6 بوصة | محرك سداسي | خيط جزئي | ستانلس ستيل 316 (25/عبوة)

The hex socket drive made tightening these into my precision jig a breeze with no stripping. The partially threaded shaft on the 316 stainless steel feels solidly built.

Used these for mounting a heavy jig on my mill table, and the 316 stainless held up perfectly without any corrosion worries. The partially threaded design made alignment much easier than fully threaded bolts I've tried before.

The hex socket seated fully without any wobble when I torqued them down on my jig fixture, and the 316 stainless finish has a clean, consistent look across all 25 pieces. Six inches was exactly the reach I needed for a through-hole setup, and the partial threading grabbed plenty of grip.