M12-1.75 X 30mm 內六角圓頭螺絲 | 低頭六角驅動 | 全牙 | 10.9級合金鋼熱處理黑氧化物 (50 / 包)

Had a batch of these on hand for a jig fixture and the hex socket drive seated perfectly every time, no stripped heads. The class 10.9 alloy steel feels seriously tough for the price, and the black oxide finish hasn't shown a single spot of rust after a week of shop use.

The low head profile saved me on a tight clearance jig where a standard cap screw wouldn't fit, and the black oxide finish makes them look clean and professional. They thread in smoothly and feel incredibly solid for the price.

Class 10.9 alloy steel with that thermal black oxide finish—these screws feel seriously robust for jig work, and the low head profile cleared my tight clearance perfectly. The hex socket drive seated cleanly with no stripping across all 50 pieces, which is exactly what I needed.