براغي رأس مقبس 1/4-20 × 6" | محرك مقبس سداسي | خيوط جزئية | سبائك فولاذ معالجة حرارياً بأكسيد أسود (50 / عبوة)

Used a handful of these to repair a jig at the shop and the partially threaded shank gave just the right bite in the clamping area. Full six inches of reach cleared my thick fixture plate without an issue.

The black oxide finish looks clean and professional, and the partial threading made alignment in my jig setup much easier than I expected. Six inches of reach with the hex drive gave me solid torque without stripping.

The hex socket drive seated perfectly on my Allen key with zero wobble, and the 6-inch length gave me the reach I needed for a tight jig setup. All fifty came out of the bag with a consistent, clean black oxide finish and no burrs on the threads, which is exactly what I want for precision assemblies