Bowmalloy 36333 Hex Head Cap Screw 5/16-24 X 2 in Grade 9

Product Description

The BOWMALLOY 36333 is a Grade 9 alloy steel hex head cap screw sized 5/16-24 x 2 inches with a zinc-plated clear chromate finish. It features a partially threaded shank, which provides a smooth bearing surface along the unthreaded portion and improves clamp load consistency in structural and mechanical assemblies. The clear chromate zinc coating offers a baseline level of corrosion resistance suitable for indoor and protected outdoor environments. This fastener is installed by maintenance technicians, millwrights, and field service professionals across HVAC, mechanical, and general industrial applications.

This cap screw is used in light structural, equipment mounting, and mechanical assembly work where a fine-thread 5/16-24 pattern is specified. Fine-thread fasteners provide greater tensile strength and improved resistance to loosening under vibration compared to coarse-thread equivalents, making them a common choice in equipment panels, brackets, and close-tolerance assemblies found in HVAC units, electrical enclosures, and mechanical drive systems.

Key Features

• Grade 9 alloy steel construction provides high tensile strength for demanding mechanical applications
• 5/16-24 fine thread delivers superior vibration resistance and higher clamp load versus coarse thread
• Partially threaded shank improves alignment and bearing surface in bolted joints
• Zinc-plated clear chromate finish offers corrosion protection in standard service environments
• Inch measurement system with 2-inch length under head

Compatibility

Designed as a standard inch-series hex head cap screw compatible with 5/16-24 UNF tapped holes and nuts in mechanical and structural assemblies requiring Grade 9 alloy steel fasteners.

Installation Notes

Installation is performed using a standard hex wrench or socket sized for a 5/16-24 hex head cap screw. De-energize and lock out any equipment before replacing or installing fasteners in live assemblies. Apply thread lubricant or thread-locking compound only where specified by the equipment manufacturer. Follow applicable torque guidelines from ASME or equipment OEM documentation for Grade 9 fine-thread fasteners.