M4-0.7×20mm ソケットキャップスクリュー | フラットヘッド六角穴付き | 全ねじ | 18/8ステンレス鋼 (900本/袋)

The threads on these M4 screws are perfectly clean and consistent, so they drive smoothly into my jig fixtures without any binding. The 18-8 stainless steel gives me confidence they won't rust in my shop environment.

The hex socket drive seated my Allen key perfectly, and the fully threaded shaft gripped cleanly through two aluminum plates without any wobble. I've already used 300 of the 900 for jig builds and haven't hit one burred thread. Exactly what I wanted for precision work.

I needed a bulk supply of stainless steel fasteners for a jig I’m building, and these fully threaded M4 screws are exactly what I was after—the 900-count package is a serious time-saver. The flat head sits flush perfectly in my aluminum fixture, and the 18/8 material feels solid.