براغي تثبيت سداسية برأس نقطة كلب 1/4-20 × 1/4" | فولاذ سبائكي (250 / عبوة)

The dog point bottoms out perfectly in the keyway, so these alloy steel screws grip the shaft without chewing it up. I've used a lot of set screws that strip, but the socket drive on these took a solid torque without a hint of rounding. Two hundred and fifty of them means I'm set for every collar an

Needed a small batch of these for a pulley repair and the alloy steel feels sturdy enough for the job. The socket drive bit snugged them in tight without stripping, though I wish the package had a few extra screws for the price.

Got these for securing pulleys—the dog point is a nice touch for alignment. Worked fine on my first try, but a few of them felt a little tight going in. Decent for the price, nothing spectacular.