Bowmalloy 36034 Hex Head Cap Screw 5/16-18 X 2.25 in Grade 9

Product Description

The BOWMALLOY 36034 is a Grade 9 alloy steel hex head cap screw designed for high-strength fastening applications in mechanical, HVAC, plumbing, and electrical trade work. Measuring 5/16-18 thread size and 2.25 inches in length under the head, this screw is partially threaded and finished with a zinc-plated clear chromate coating that provides corrosion resistance in demanding environments. Grade 9 alloy steel delivers tensile strength above standard Grade 5 and Grade 8 hardware, making it appropriate for structural and load-bearing connections where fastener integrity is critical.

This cap screw is suited for use in equipment assembly, bracket mounting, mechanical enclosures, and structural panel fastening across residential and commercial trade applications. The 5/16-18 UNC thread profile is a common size found in HVAC equipment frames, electrical enclosures, and plumbing support hardware. Sold in a package quantity of 100, this item is practical for contractors and service technicians who need a reliable supply of high-grade fasteners on hand for recurring installation work.

Key Features

• Grade 9 alloy steel construction for superior tensile strength over standard hardware grades
• 5/16-18 UNC thread size with 2.25-inch length under head for medium-depth fastening applications
• Partially threaded shank provides clamping strength and shear resistance in bolted joints
• Zinc-plated clear chromate finish offers corrosion resistance in light-duty outdoor and indoor environments
• Package quantity of 100 pieces supports high-volume installation and service work

Compatibility

Designed as a standard inch-system hex head cap screw compatible with any application requiring a 5/16-18 UNC thread pattern and a fastener length of 2.25 inches under the head.

Installation Notes

Installation should be performed by a qualified tradesperson using the appropriate hex drive or socket wrench sized for the fastener head. Always ensure mating threads are clean and free of debris before installation. Follow applicable mechanical and structural codes for torque and fastener placement requirements relevant to the specific application. Do not reuse fasteners that show signs of thread damage, corrosion, or deformation.