براغي ذات رأس أسطواني 1/4-20 × 1-1/2 بوصة | محرك سداسي | صناعة أمريكية | ملولبة بالكامل | نحاس (100/عبوة)

Picked up a pack for a small precision assembly and the threads were clean and consistent right out of the box—no burrs or off-center drilling. Being fully threaded with a hex socket drive made them easy to torque down in tight spots.

Installed these on a brass jig I was building, and the threads cut cleanly without any binding. The hex socket drive makes them easy to tighten precisely, and the fully threaded length gives plenty of grip. Exactly what I needed for a corrosion-resistant fastener.

Wish they came in smaller quantities, but the fully threaded brass shaft made precise depth adjustment on my jig a breeze. The hex socket drive seated my Allen key snugly, no stripping or wobble.