M8-1.25 X 45mm 內六角螺絲 | 平頭內六角驅動 | 全牙 | 12.9 級合金鋼 熱處理黑色氧化 (200 個/包)

The hex socket drive sits deep and clean—no stripped corners even after torquing them down hard on my jig. The black oxide finish has a nice uniform matte look, and the 12.9 alloy steel feels seriously solid for the price.

The black oxide finish on these is exactly what I wanted for a fixture build—clean, even, and they slide into tapped holes without binding. The 12.9 alloy steel gives me confidence torquing them to spec. For 200 pieces at this price, they're a solid value.

Needed a solid batch of M8 fasteners for a jig I was building, and these 12.9 alloy screws are noticeably tougher than the standard hardware store stuff. The thermal black oxide finish also gives them a nice, uniform look against the steel.