براغي مقبس ذات نقطة كوب 5/16-24 × 1-1/2 بوصة | فولاذ سبائكي (250/عبوة)

Pulled the hex socket tight in a cramped spot under the machine and the 1.5-inch length gave me plenty of grip without slipping. Alloy steel feels solid, and the cup point left a clean, secure seat on the shaft. Exactly what I needed for a stubborn adjustment.

The cup point bites into the shaft exactly as it should, and the 1.5-inch length gave me plenty of thread engagement for a stubborn sprocket. Out of the whole box of 250, every single one threaded clean without any burrs or defects.

Used a whole pack of these on a custom jig build and the hex socket drive made seating them in tight spots so much easier. The alloy steel feels sturdy and they threaded smoothly into pre-tapped holes without any binding.