Armor Coat UST235808 Hex Head Cap Screw 7/16-20 Grade 8

Product Description

The ARMOR COAT UST235808 is a Grade 8 steel hex head cap screw designed for high-strength fastening applications. With a 7/16-20 UNF thread size and a 2-1/2 inch length under head, this fastener is partially threaded per ASME B18.2.1 and SAE J429 standards. Grade 8 steel construction provides superior tensile strength compared to lower-grade fasteners, making it suitable for demanding mechanical and structural assemblies. Machinists, millwrights, HVAC equipment installers, and other trade professionals rely on this grade when torque loads and joint integrity are critical.

This hex head cap screw fits applications requiring a fine-thread UNF fastener in the 7/16 inch diameter class. Partial threading is appropriate for applications where the unthreaded shank must bear shear loads or where precise clamp length control is needed. Common use cases include equipment mounting, machinery assembly, and structural bracketing where Grade 8 rated hardware is specified by the engineer or equipment OEM.

Key Features

• Grade 8 steel construction for high tensile and proof load strength
• 7/16-20 UNF fine thread for precise torque control and vibration resistance
• Partially threaded shank suitable for shear-load-bearing joints
• 2-1/2 inch length under head for deeper grip requirements
• Meets ASME B18.2.1 and SAE J429 standards
• Inch measurement system for standard US fastener compatibility

Compatibility

Designed for use in applications calling for a 7/16-20 UNF Grade 8 hex head cap screw per ASME B18.2.1 and SAE J429 specifications. Consult equipment documentation to confirm thread engagement and clamp length requirements before installation.

Installation Notes

Installation should be performed by a qualified mechanic, millwright, or trade professional familiar with fastener torque specifications for Grade 8 hardware. Always consult the equipment manufacturer or engineering drawings for the correct torque value before tightening. Clean mating threads and inspect for damage before assembly. Do not mix thread standards or grades within the same joint.