Bowmalloy BOW36314 Hex Head Cap Screw 1/4-28 X 4 in

Product Description

The BOWMALLOY BOW36314 is a Grade 9 steel hex head cap screw in a 1/4-28 thread size with a 4-inch length under head. It features partial threading and a Bowma-Guard zinc-plated clear chromate finish for corrosion resistance. This fastener is built to inch-system specifications and is suited for high-strength bolted joint applications where Grade 9 tensile performance is required. Installation is performed by maintenance technicians, millwrights, and trade professionals working on structural assemblies, mechanical equipment, or HVAC and plumbing support structures.

This screw is used in applications requiring a fine-thread, high-strength fastener in inch-measurement systems. Its partial threading allows for a smooth shank section, which is useful in close-tolerance or shear-load situations. Typical install scenarios include mechanical equipment mounting, support framing, and industrial assemblies where a reliable, corrosion-resistant fastener is specified. The 1/4-28 fine-thread profile provides greater thread engagement per inch compared to coarse-thread alternatives.

Key Features

• Grade 9 steel construction for high-strength bolted connections
• 1/4-28 fine-thread profile for improved thread engagement
• 4-inch length under head suits deeper fastening applications
• Partial threading provides a smooth shank section for shear-load and close-tolerance use
• Bowma-Guard zinc-plated clear chromate finish resists corrosion
• Inch system dimensions for compatibility with standard inch-measurement assemblies

Compatibility

Designed as a standard inch-system hex head cap screw suitable for use in mechanical, structural, and equipment-mounting applications requiring a 1/4-28 fine-thread, Grade 9 fastener.

Installation Notes

Installation should be performed by a qualified technician using an appropriately sized hex wrench or socket. Ensure mating threads are clean and free of debris before fastening. Power down or de-energize any associated equipment before accessing fastener locations on live mechanical systems. Follow applicable ASME or industry fastener standards for torque guidance based on joint design.