M12 x 50mm 平頭內六角止付螺絲 | 合金鋼 (100 個/包)

The flat point tip seated perfectly in the shaft without walking off-center, which made aligning the coupling a breeze. All 100 screws arrived clean and the alloy steel feels sturdy under the hex key, even when I torqued them down snug.

The hex socket drive gripped the Allen key perfectly, letting me torque these down in a spot where a wrench wouldn't have fit. All 100 pieces arrived with clean threads and no burrs, and the flat point seated firmly against the shaft.

The flat point on these M12 set screws seats perfectly without damaging my workpiece, and the alloy steel feels sturdy enough for repeated adjustments. I've put a full bag to use on a jig build, and every single screw has threaded smoothly.