McMaster 92865A889 Medium-Strength Grade 5 Steel Hex Head Screw Zinc-Plated, 7/8″-9 Thread Size, 4″ Long, Fully Threaded

Made from Grade 5 steel, these screws are suitable for fastening most machinery and equipment. Dimensions meet ASME B18.2.1 specifications. Grade 5 steel hex head screws are marked with three radial lines. Length is measured from under the head.

Zinc-plated steel screws resist corrosion in wet environments.

Match the thread spacing of mating components.

Coarse threads are the industry standard; choose these screws if you don’t know the threads per inch.

Screws that meet ASTM A449 or SAE J429 comply with specifications and testing requirements for material quality.