2"-4-1/2 X 8" 六角ボルト | グレードBD合金鋼無処理 | 部分ねじ (1個/パック)

I needed a few heavy-duty fasteners for a machine guard repair, and these cap screws worked perfectly. The hex head gave my socket wrench a solid bite, and the partial threading made alignment simple.

The partially threaded design made seating these in a deep flange much easier than I expected, and the alloy steel finish looked solid out of the package. They drove in straight with a socket wrench—no galling, no fuss. Exactly what I needed for the equipment mount.

The threading is clean and the hex head seats perfectly with a socket wrench, no stripped corners or wobble. I used it to bolt down a heavy press and it's held rock-solid for two weeks of daily use. For an 8-inch alloy steel cap screw, the price for a single piece is steep, but the quality is exactl