M8-1.25 x 20mm 內六角圓柱頭螺絲 | 平頭內六角驅動 | 全螺紋 | 12.9級合金鋼 熱處理黑色氧化 (300顆/包)

The hex socket drive fits snugly without any wobble, and the black oxide finish feels durable. These bolts cinched down perfectly on my new milling fixture with zero stripping. Exactly what I needed for heavy-duty jig work.

I was a bit skeptical about buying hardware in bulk online, but these 300 screws came well-packed and the black oxide finish looks properly done. The hex socket drive fits my allen key snugly with no wobble, and the flat heads sit flush in my jig holes. Already used a dozen on a fixture build and th

These M8 flat heads are exactly what I needed for assembling a new tooling fixture. The hex socket drive made them easy to install with a standard Allen key, and the 12.9 grade feels properly strong. Great value for a 300-piece pack.