Bowmalloy 36002 Hex Head Cap Screw 1/4-20 X 3/4 in Grade 9

Product Description

The BOWMALLOY 36002 is a fully threaded hex head cap screw designed for high-strength fastening applications in mechanical, structural, and industrial assemblies. Manufactured from Grade 9 alloy steel, it delivers superior tensile strength compared to standard Grade 5 or Grade 8 fasteners. The 1/4-20 thread size and 3/4-inch length under head make it a common choice for medium-duty bolted connections. A clear zinc chromate finish provides corrosion resistance in moderately demanding environments. Licensed contractors, millwrights, and mechanical technicians install these fasteners across a wide range of trade applications.

This screw is suited for use in HVAC equipment assemblies, electrical enclosures, plumbing bracket mounts, and general mechanical fabrication where a high-strength inch-series fastener is required. The 1/4-20 coarse thread pattern is one of the most widely used thread forms in North American trade work, offering reliable clamp load and ease of assembly with standard tooling. The fully threaded shank allows full thread engagement across the entire length under head, which is especially useful in thinner materials.

Key Features

• Grade 9 alloy steel construction for high tensile strength beyond standard Grade 8 specifications
• Fully threaded shank for maximum thread engagement in thin or variable-thickness materials
• Clear zinc chromate finish provides moderate corrosion resistance
• 1/4-20 coarse thread form - widely compatible with standard nuts, inserts, and tapped holes
• Hex head drive accepts standard hex wrenches and sockets for fast installation

Compatibility

Designed as a standard inch-series hex head cap screw for use in any application requiring a 1/4-20 thread size with a 3/4-inch length under head and a Grade 9 alloy steel fastener.

Installation Notes

Install using a standard hex wrench or socket set sized to the appropriate hex head. Apply appropriate torque per your project specifications or applicable structural and mechanical codes - do not overtorque, as this can yield the fastener or damage tapped threads. Ensure mating threads are clean and free of debris before installation. Fastener selection and torque requirements should comply with relevant ASME or industry standards for the application.