Set Screw, M4x8, Socket Dog Point

Installed these on my HiTorque micro mill's X and Y nuts, and the fit is precise with no wobble. The dog point design grabbed securely on the first try, making adjustments much easier.

Finally, a set screw that actually stays tight on the Y-axis nut—the dog point grips perfectly without marring the threads. I had been fighting slippage with generic screws, and this one solved it on the first install.

The dog point seats perfectly into the nut's slot, and the M4x8 sizing was spot-on for my mill's axis assembly. Threads engaged cleanly with no wobble, so the fastening feels rock-solid during operation.