Value Collection 97257 Hex Head Cap Screw Grade 5 Steel

Product Description

The VALUE COLLECTION 97257 is a partially threaded hex head cap screw designed for heavy-duty bolted connections in structural, mechanical, and industrial applications. Sized at 1-1/2-6 UNC thread with a 4-inch length under head, this fastener is manufactured from Grade 5 steel in an uncoated finish. It meets ASME B18.2.1 and SAE J429 dimensional and mechanical standards, making it suitable for applications that require a verified tensile and proof load rating. The large diameter and coarse thread pitch provide high clamping force with good resistance to loosening under vibration and load cycling.

This cap screw is used in general industrial assembly, heavy equipment maintenance, structural steel connections, and fabrication work where inch-series UNC fasteners are specified. The partial thread configuration leaves a smooth shank section under the head, which is preferred when precise shear loading through the bolt body is required or when the fastener passes through clearance holes before engaging a tapped bore or nut.

Key Features

• 1-1/2-6 UNC thread form, inch-series coarse pitch for high clamping force
• 4-inch length under head, partially threaded for shank-bearing applications
• Grade 5 steel construction meeting SAE J429 mechanical property requirements
• Uncoated finish suitable for use as-is or with field-applied corrosion protection
• Conforms to ASME B18.2.1 dimensional standards for hex head cap screws

Compatibility

Designed as an inch-series UNC replacement or service fastener for heavy equipment, structural assemblies, and industrial machinery that specify a 1-1/2-6 Grade 5 hex head cap screw per ASME B18.2.1 or SAE J429.

Installation Notes

Installation should be performed by a qualified mechanic, millwright, or structural ironworker familiar with large-diameter fastener torque procedures. Always verify thread engagement depth and hole clearance before assembly. Apply appropriate thread lubricant or anti-seize compound if specified by the equipment manufacturer. Follow applicable industry standards and engineering specifications for torque values, as no torque data is supplied with this fastener.