3/4-10 X 4" 六角頭螺絲 | 美國製造 | L9合金鋼黃鋅 | 部分螺紋 (20 / 包)

Needed a batch of heavy-duty bolts for a repair job, and the partially threaded design gave just the right grip for the machinery housing. They’re solid, fit the socket well, and the yellow zinc looks like it’ll handle the shop environment fine.

The yellow zinc coating on these L9 bolts is holding up perfectly in my outdoor equipment build, no rust after a week of rain. They drove in smoothly with a socket, and the partial threading made alignment a breeze. Exactly the industrial quality I needed.

Truthfully, I wasn't expecting bolts this hefty to have such a clean and even yellow zinc finish, but every single one in the package looked flawless. The partially threaded length gave me just the right amount of grip when I bolted a new motor mount to the frame. You can feel the L9 alloy steel is