M12-1.75 X 15mm 內六角螺絲 | 平頭內六角驅動 | 全螺紋 | 12.9級合金鋼鍍鋅 (100 / Pkg.)

Needed a dozen for a custom press tool and the hex socket drive made installation a breeze with no cam-out. The zinc plating on these 12.9 alloy steel screws has held up perfectly under heavy clamping loads, and the flat head sits flush as expected.

Used a full pack on a jig build and every single screw threaded cleanly without binding. The hex socket drive handled the torque well, and the 12.9 grade gives me confidence they won't strip under heavy use.

Zinc plating looks even and uniform across all 100 pieces, no bare spots or flaking around the threads. I’ve used a dozen so far for jig assembly and every single one has driven in clean with a standard hex key.