1/4-20 × 1/4" براغي تثبيت ذات رأس كوبي مخدد من سبائك الصلب مطلي بالزنك (250/عبوة)

Finally got these for a repair job requiring a flush fit, and the hex socket drive makes it easy to tighten them even in that cramped space. The knurled cup point held secure without stripping, which was my main worry. A solid pack for the price.

The knurled cup point grips the shaft way better than the standard flat-tip set screws I've used before, so no more slipping under vibration. Hex socket drive made it easy to torque them down in a tight spot where an Allen key barely fit.

These little cup point screws fit perfectly into a tight adjustment port I have on a jig, and the hex socket drive let me torque them down without stripping. The knurled tip really does grip the driver firmly.