براغي رأس كبسولة مقبس #1-12 × 5-1/2 بوصة | محرك مقبس سداسي | ملولبة جزئياً | فولاذ سبائكي أكسيد أسود حراري (10/عبوة)

Needed exactly these 5-1/2" screws to rebuild a jig fixture, and the partially threaded shaft worked perfectly for aligning the plates. The hex socket drive made installation much easier than standard bolts.

The hex socket drive on these 5-1/2" screws grabbed my socket wrench securely without any slippage, which made installing them into a jig frame quick and satisfying.

The black oxide finish on these socket cap screws gives them a solid, industrial look that resists glare during assembly work. Thread engagement was precise when I used them in my drill jig, no cross-threading issues at all. Exactly what I needed for heavy-duty tooling projects.