Bowmalloy 36104 Hex Head Cap Screw 1/2-13 X 1 in Grade 9

Product Description

The BOWMALLOY 36104 is a fully threaded hex head cap screw designed for high-strength fastening applications in industrial, mechanical, and structural assemblies. It features a 1/2-13 thread size with a 1-inch length under the head and is manufactured from Grade 9 alloy steel, which offers greater tensile strength than Grade 5 or Grade 8 fasteners. The clear zinc chromate finish provides corrosion resistance for moderate-exposure environments. This screw is sized in the inch measurement system and is a standard choice for heavy-duty bolted joints where high clamp load is required.

The 36104 is suited for use in industrial equipment, heavy machinery, agricultural implements, hydraulic assemblies, and structural steel connections where Grade 9 alloy steel strength is specified. Fully threaded along its 1-inch shank, it is appropriate for through-bolting applications or thinner material stacks. Licensed mechanical contractors, maintenance technicians, and fabricators working to engineering specifications commonly install this fastener in applications demanding higher proof load values than Grade 8 hardware provides.

Key Features

• Grade 9 alloy steel construction for high tensile and proof load strength
• 1/2-13 UNC thread size, fully threaded for maximum thread engagement
• 1-inch length under head suits through-bolt and short-grip applications
• Clear zinc chromate finish provides moderate corrosion resistance
• Inch measurement system, compatible with standard SAE tooling and hardware

Compatibility

Designed as a standard 1/2-13 UNC hex head cap screw for use with matching Grade 9 or equivalent hex nuts and hardened washers in high-strength bolted assemblies per applicable engineering specifications.

Installation Notes

Installation should be performed by qualified mechanical or maintenance technicians familiar with fastener torque requirements for Grade 9 alloy steel hardware. Always consult the applicable engineering drawings or torque specification tables before tightening. Use a properly calibrated torque wrench and hardened flat washers as required. Inspect threads and mating surfaces for damage or contamination before assembly.