براغي ضبط ذات رأس مقبس بنقطة مخددة 5/8-18 × 1-1/4 بوصة | فولاذ سبائكي (25/عبوة)

The knurled cup point on these set screws grabbed onto the shaft really well without slipping during installation. Alloy steel feels tough enough to hold up under heavy use.

The hex socket drive made it easy to get these tightened down in a cramped engine bay without stripping. Fit perfectly into my jig fixture and the knurled grip held tight under vibration. Exactly what I needed for a secure assembly.

The knurled cup point grips far better than standard flat-tip set screws, which I appreciate for locking down a pulley on a tight shaft. Alloy steel feels sturdy, and the hex socket gave me solid torque without stripping in a cramped spot.