7/8-9 X 5-3/4" 重型六角頭螺絲 | ASTM A193 B7 合金鋼原色 | 部分螺紋 (35 個/包)

The hex head on these cap screws fits a 3/4" socket perfectly, so I can torque them without the wrench slipping. The alloy steel feels dense and high-quality, just right for securing heavy machinery components.

I needed a handful of 5-3/4" partially threaded bolts for a pump rebuild and these B7s hit the mark. The threads are clean and they torqued down without any galling, which is always my biggest worry with alloy steel.

Finally, a fastener that doesn’t strip out the moment you get it tight. The partially threaded shank on these 5-3/4” bolts gives plenty of grip for heavy machinery assembly. I used half the pack already and every one seated clean.