1-8 x 10" 內六角螺絲 | 平頭內六角驅動 | 合金鋼熱處理黑色氧化 (5個/包)

Had to source extra-long bolts for a custom jig build, and these 10-inchers fit the bill perfectly. The black oxide finish seems durable and the hex drive seated nicely without stripping.

I was nervous about the length of these 10" screws being straight, but every single one threaded in cleanly through my jig fixtures without any wobble. The hex socket grip is precise and the thermal black oxide coating adds a nice layer of protection for the shop environment.

The black oxide finish is even and slick, which made them seat cleanly in the jig without any binding. For a 10-inch alloy steel screw, they feel surprisingly rigid and true, and the hex socket grabbed firmly right out of the pack.