براغي ذات رأس أسطواني مقاس 3/4-10 × 18 بوصة | محرك سداسي | ملولبة جزئيًا | فولاذ سبائكي مع أكسيد حراري أسود

These 18-inch screws threaded into a steel fixture I’m building without any binding, and the black oxide finish looks seriously tough. The hex socket drive grabbed perfectly with my allen wrench, no stripping at all. Exactly what I needed for heavy tooling work.

Had to swap out a damaged jig bolt on a heavy press, and these threaded in smooth with no binding. The black oxide finish seems to handle oil and grime better than plain steel ones I’ve used before, and the partial thread gave me just the right grip length.

These 3/4-10 x 18" screws fit perfectly into my jig's tapped holes, with a solid hex socket drive that gave me good torque control. The partially threaded design made alignment easy on my press assembly.