Bowmalloy 36025 Hex Head Cap Screw 5/16-18 X 1/2 in Grade 9

Product Description

The BOWMALLOY 36025 is a fully threaded hex head cap screw designed for high-strength fastening applications in mechanical, industrial, and trade assembly work. Built to Grade 9 alloy steel specification, this fastener delivers superior tensile strength compared to standard Grade 5 or Grade 8 hardware. The 5/16-18 thread size with a 1/2 inch length under head makes it well suited for compact joint assemblies where clamping force and corrosion resistance both matter. A clear zinc chromate finish provides a baseline level of corrosion protection for indoor and light-duty outdoor installations. This fastener is sold in packages of 100 units.

This cap screw is appropriate for use in structural, mechanical, and equipment assembly applications across HVAC, industrial, and general trade work. The 5/16-18 coarse thread pattern seats reliably in standard tapped holes and threaded inserts. Full threading along the shank allows maximum thread engagement even in thin material applications. Its compact 1/2 inch length suits close-clearance or shallow-boss fastening scenarios commonly found in equipment panels, brackets, and mounting hardware.

Key Features

• Grade 9 alloy steel construction for high tensile strength fastening
• 5/16-18 UNC coarse thread for compatibility with standard tapped holes
• Fully threaded shank maximizes thread engagement across the full length
• Clear zinc chromate finish provides corrosion resistance in typical service environments
• 1/2 inch length under head suits shallow-boss and close-clearance installations
• Package quantity of 100 supports production, service, and inventory needs

Compatibility

Designed as a standard inch-series hex head cap screw compatible with any application requiring a 5/16-18 threaded fastener with a 1/2 inch grip length in alloy steel.

Installation Notes

Installation should be performed by a qualified mechanic or trade professional using an appropriate hex socket or combination wrench sized for a standard 5/16-18 hex head fastener. Always verify mating thread condition and thread class before installation to ensure proper fit and clamping load. Do not reuse fasteners that show signs of galling, corrosion, or deformation. Follow applicable equipment manufacturer torque guidance and relevant mechanical codes for the specific assembly.