7/16-14 X 1-3/4" 六角頭螺絲 | 美國製造 | PFC9 合金鋼 黃鋅 (50個/包)

The hex head on these cap screws is machined cleanly, so my socket grabbed them without any wobble during assembly. The yellow zinc coating gives them a nice uniform finish, and they feel solidly made right out of the package.

Threaded perfectly into an old piece of farm equipment where the original bolts had rusted out. The PFC9 alloy steel feels noticeably tougher than the grade 5 hardware I usually grab, and the hex heads seated cleanly with a socket.

The yellow zinc finish on these bolts is holding up great in a wet shop environment, no rust after a month of use. The hex heads give a solid grip with my socket wrench, and threading was clean right out of the package.