براغي رأس سداسي 1/4-20 × 4 بوصة | صناعة أمريكية | فولاذ سبائكي درجة L9 أصفر زنك | ملولبة جزئيًا (100 / عبوة)

I needed some longer fasteners for a jig build, and these 4-inch hex heads worked perfectly with my socket driver. The partially threaded shaft made alignment much easier than fully threaded bolts would have.

The yellow zinc coating on these screws looks really good, and the partial threading made installation on my shop press frame much easier. They torqued down nicely with a socket without any stripping.

Used these for mounting a heavy steel bracket, and the Grade L9 alloy steel gave me confidence they wouldn't shear off. The partial threading made starting them in the nut much easier than fully threaded bolts.