براغي مقبس بلاستيكية نقطة كوب 1/4-20 × 1-1/2 بوصة | فولاذ سبائكي (100 / عبوة)

Installed these in a jig that takes a beating and the nylon cup point holds firmly without marring the surface. The hex socket made tightening in a cramped spot much easier than I expected.

Had to adjust some machinery alignment in a tight spot, and these alloy steel screws held up perfectly under the hex drive torque. The cup point gripped exactly where needed.

The nylon pellet tip is a nice touch—it holds firm without chewing up the surface of my workpiece. The hex socket drive made seating them in a tight spot way easier than a slotted screw would've been, and all 100 arrived clean and ready to use.