1/2-13 x 1-1/8インチ ソケットキャップスクリュー | さら頭六角穴付き | 全ねじ | 合金鋼 熱処理黒色酸化被膜 (100個/パッケージ)

Used these for a jig I was building and the flat head seated perfectly flush every time. The black oxide finish held up well during assembly without chipping.

Threads are clean and the hex socket seated perfectly on my Allen key, no wobble. The black oxide coating held up fine when I torqued them into a jig plate. Exactly what I needed for a quick fixture build.

Used a handful of these for a new tooling fixture, and the black oxide finish slid right into place without binding on the threads. The hex socket drive gave a clean, secure grip—no stripping even under torquing. Solid purchase for precision assemblies.