キャップスクリュー（六角穴付き）8mm x 20mm

The hex socket drove smoothly without stripping, exactly what I needed for a tight engine bay repair. Threads were clean and the black oxide finish hasn't shown any rust yet after a few days of light rain.

Perfect fit for the mounting bracket I was repairing—the threading was clean and seated snugly without any wobble. Nice to find just the right replacement part without buying a whole kit.

Had to order this specific 8mm x 20mm socket head cap screw for a small repair and it threaded in perfectly with no cross-threading. The hex socket was cleanly machined, so my Allen key grabbed tight without slipping. Exactly the tiny part I needed to get my system back together.