Value Collection R52001094 Hex Head Cap Screw

Product Description

The VALUE COLLECTION R52001094 is a heavy-duty hex head cap screw designed for high-load bolted assemblies in industrial, mechanical, and structural applications. It features a 1-1/2-6 UNC thread form with an 11-inch length under head and is partially threaded, allowing for proper clamping force in thick-stack joints. The fastener is manufactured from Grade 5 steel and finished with a zinc plating for corrosion resistance. The 2-1/4-inch hex drive accommodates standard heavy hex tooling. This screw meets ASME B18.2.1 and SAE J429 standards, making it suitable for use in specified engineering assemblies where dimensional and mechanical compliance is required.

This cap screw is used in heavy mechanical fabrication, industrial equipment assembly, structural steel connections, and maintenance repair operations. Its large diameter and coarse UNC thread pitch make it appropriate for applications requiring high clamping load and resistance to vibration-induced loosening. Contractors, millwrights, and industrial maintenance technicians commonly install this fastener in equipment frames, flanged joints, and machinery bases where high-strength threaded fasteners are specified.

Key Features

• 1-1/2-6 UNC thread form — coarse pitch for high clamping force and ease of assembly in field conditions
• 11-inch length under head provides reach for thick material stacks and flanged connections
• Partially threaded shank allows the unthreaded body to carry shear loads across the joint
• Grade 5 steel construction meets SAE J429 mechanical property requirements
• Zinc-plated finish provides baseline corrosion protection for indoor and light-duty outdoor use
• 2-1/4-inch hex drive compatible with standard heavy hex sockets and open-end wrenches
• Conforms to ASME B18.2.1 dimensional standard for hex cap screws

Compatibility

Designed as a standard hex head cap screw per ASME B18.2.1 for use in any application requiring a 1-1/2-6 UNC Grade 5 fastener with an 11-inch length under head.

Installation Notes

Installation should be performed by a qualified mechanic, millwright, or maintenance technician using calibrated torque equipment appropriate for large-diameter fasteners. Always verify the mating thread condition and clean threads before assembly. Apply thread lubricant or anti-seize only if specified by the engineer of record, as lubrication affects torque-tension relationships. Follow applicable industry standards and equipment OEM torque specifications when tightening.