3/4-10 X 3-3/4" 重型六角螺絲 | 美國製造 | A307 B級鋼鍍鋅 | 部分螺紋 (65 顆/包)

These are perfect for the heavy machinery I'm repairing; the partial threads let me snug them tight without bottoming out on the frame. The zinc coating looks uniform and they drove in with no wobble.

The threads cut cleanly into the steel I was bolting together, and the partial threading gave me just the right grip for a heavy equipment frame. Sixty-five pieces in the pack means I've got spares for the next job without a second order.

The hex heads on these bolts have a nice, deep socket fit, and the partial threading made them perfect for clamping down a heavy steel bracket without binding. The zinc coating seems uniform and should hold up well in my shop.