Bowmalloy 36068 Hex Head Cap Screw 3/8-16 X 5 in Grade 9

Product Description

The BOWMALLOY 36068 is a Grade 9 alloy steel hex head cap screw designed for high-strength fastening applications in mechanical, structural, and industrial assemblies. It features a 3/8-16 UNC thread and measures 5 inches under the head with partial threading, making it well-suited for through-bolting thicker materials where a full grip length is required. The clear zinc chromate finish provides corrosion resistance in moderate exposure environments. This fastener is installed by millwrights, maintenance technicians, pipefitters, and general contractors working on equipment and structural connections that demand a high-tensile, reliable fastener.

The 36068 is used in demanding fastening scenarios where Grade 9 alloy steel strength is specified over the more common Grade 5 or Grade 8 hardware. Typical applications include heavy equipment assembly, machinery mounting, structural steel connections, and industrial maintenance work. The 3/8-16 thread is one of the most widely used coarse-thread sizes in inch-system fastening, and the 5-inch length accommodates assemblies with substantial stack height. This part is packaged in quantities of 25 units per pack.

Key Features

• Grade 9 alloy steel construction provides tensile strength above standard Grade 8 fasteners
• 3/8-16 UNC coarse thread for broad compatibility with standard inch-system hardware
• 5-inch length under head accommodates thick-stack assemblies
• Partially threaded shank gives a full grip zone for shear-loaded connections
• Clear zinc chromate finish offers corrosion resistance for general industrial use
• Sold in packs of 25 to support job-lot purchasing

Compatibility

Designed as an OEM-style and aftermarket replacement hex head cap screw for inch-system assemblies requiring a 3/8-16 thread and 5-inch fastener length in Grade 9 alloy steel.

Installation Notes

Installation is performed by licensed or qualified mechanical, structural, or maintenance personnel. Always match the nut and washer grade to the fastener grade to avoid joint failure under load. Follow the applicable torque specifications in the equipment service manual or relevant ASME or AISC standards for the joint design. Inspect the mating threads for damage or contamination before installation, and never substitute a lower-grade fastener where Grade 9 is specified.