Value Collection R50000343 Hex Cap Screw 1-8x11 Grade 5

Product Description

The VALUE COLLECTION R50000343 is a hex head cap screw designed for heavy-duty fastening applications in industrial, mechanical, and construction environments. This fastener measures 1-8 thread size by 11 inches in length under head and is manufactured from Grade 5 steel with a zinc-plated finish for corrosion resistance. It features partial threading along the shank and conforms to the Unified National Coarse (UNC) thread standard. Installation is performed by licensed tradespeople and general mechanics requiring a reliable, standards-compliant hex fastener for structural or equipment assemblies.

This screw is suited for demanding fastening tasks where Grade 5 strength and a zinc-plated protective coating are required. The partial thread design allows for a smooth shank section, which is useful in applications that require the fastener to pass through clearance holes or where clamp load distribution across unthreaded shank length is beneficial. Typical installations include heavy machinery, steel fabrication, structural assemblies, and industrial equipment maintenance.

Key Features

• Grade 5 steel construction meets SAE J429 strength requirements
• Zinc-plated finish provides corrosion resistance for general-purpose use
• Partially threaded shank for clearance-hole and clamp-load applications
• UNC thread standard ensures broad tool and nut compatibility
• Conforms to ASME B18.2.1 dimensional standards
• 1-8 thread size by 11 inches length under head for heavy fastening tasks

Compatibility

Designed as an OEM-style replacement or standard fastener for applications requiring a 1-8 UNC hex head cap screw in Grade 5 steel with zinc plating per ASME B18.2.1 and SAE J429 specifications.

Installation Notes

Installation is typically performed by mechanics, millwrights, or general tradespeople using a standard hex wrench or socket set sized for a 1-8 hex head cap screw. Ensure mating threads are clean and free of debris before driving the fastener. Follow applicable torque guidelines from the equipment manufacturer or relevant ASME standards for Grade 5 fasteners. Never reuse fasteners that show signs of thread damage, corrosion, or deformation.