Bowmalloy 36026 Hex Head Cap Screw 5/16-18 X 5/8 in Grade 9

Product Description

The BOWMALLOY 36026 is a fully threaded hex head cap screw in the 5/16-18 thread size with a 5/8-inch length under the head. Made from Grade 9 alloy steel, it delivers high tensile strength suited for demanding fastening applications across mechanical, structural, and industrial assemblies. The clear zinc chromate finish provides corrosion resistance in moderate-exposure environments. This fastener is installed by HVAC technicians, plumbers, electricians, and general mechanical tradespeople wherever a reliable, high-strength hex cap screw is required.

This screw is used in a wide range of trade and industrial settings where a 5/16-18 unified coarse thread pattern is specified. Typical applications include equipment mounting, panel fastening, bracket assembly, and structural connections in both residential and commercial mechanical systems. The fully threaded shank allows engagement along the full grip length, making it well suited for shorter through-bolt or tapped-hole installations where maximum thread engagement is needed.

Key Features

• Grade 9 alloy steel construction for high tensile and proof load strength
• Fully threaded shank for maximum thread engagement in tapped holes
• Clear zinc chromate finish for moderate corrosion resistance
• 5/16-18 unified coarse thread for broad tooling and hardware compatibility
• 5/8-inch length under head suits shallow-fastening applications
• Sold in a package quantity of 100, with a minimum order quantity of 1 package

Compatibility

Designed as a standard inch-series hex head cap screw suitable for use in any application requiring a 5/16-18 thread size and a Grade 9 alloy steel fastener with a clear zinc chromate finish.

Installation Notes

Installation is performed with a standard hex wrench or socket driver sized for a 5/16-18 hex cap screw head. Ensure the mating thread or nut is clean and free of debris before driving. Do not exceed the rated proof load for Grade 9 alloy steel fasteners, and use a calibrated torque wrench when specifications require controlled clamp load. Always follow applicable mechanical codes and equipment manufacturer guidelines for fastener torque and replacement criteria.