براغي رأس كبس مقاس 1-1/2-12 × 8-1/2 بوصة مع مقبس سداسي | محززة جزئيًا | فولاذ سبائكي أسود حراري

The black oxide finish on these is a nice touch—they slid into my jig with zero binding and the hex socket drive grabbed cleanly. I've got a full box of 12 and they're all threading smooth, holding up well under repeated torque.

These 8-1/2" screws fit perfectly into my jig fixture, and the hex socket drive made tightening them in tight spots a breeze. The partially threaded design gave me just the right grip for clamping heavy machinery plates.

The black oxide finish on these screws is perfect for my tooling setup—no glare off the heads and they thread cleanly without binding. The partially threaded length gives just the right grip for my precision assemblies, and the hex socket drive made installs in tight spots a breeze.