Value Collection R52001241 Hex Cap Screw 9/16-18 X 6 in Grade 8

Product Description

The VALUE COLLECTION R52001241 is a Grade 8 steel hex head cap screw sized 9/16-18 x 6 inches, finished with a zinc yellow dichromate coating for corrosion resistance. This fastener features partial threading along its shank and conforms to ASME B18.2.1 and SAE J429 standards, making it a reliable choice for high-strength bolted connections. The UNF thread form provides fine-thread engagement suited to applications requiring greater tensile strength and vibration resistance. At 0.46 pounds per unit, this screw is well-suited for structural, industrial, and heavy equipment assembly work performed by mechanics, millwrights, and maintenance technicians.

This hex head cap screw is used in industrial machinery, heavy equipment, structural assemblies, and mechanical systems where a high-strength, fine-thread fastener is required. The 6-inch length under head and partial threading make it appropriate for through-bolt and clamped-joint applications across a wide range of metal fabrication and maintenance scenarios. The zinc yellow dichromate finish provides a level of corrosion protection suitable for general shop and field environments.

Key Features

• Grade 8 steel construction for high tensile and proof-load strength
• 9/16-18 UNF fine-thread form for strong thread engagement and vibration resistance
• Partially threaded shank — 6 inches length under head per ASME B18.2.1
• Zinc yellow dichromate finish provides corrosion protection
• Meets ASME B18.2.1 and SAE J429 standards
• Hex drive head for use with standard wrenches and sockets

Compatibility

Designed as a standard inch-series hex head cap screw for use in any application requiring a 9/16-18 UNF Grade 8 partially threaded fastener in structural, industrial, or heavy equipment assemblies.

Installation Notes

Installation is typically performed by mechanics, millwrights, or maintenance technicians using standard hex wrenches or impact sockets. Always verify mating thread condition and clean fastener holes before installation. Apply appropriate torque per the applicable engineering specification or fastener manufacturer guidance for Grade 8 hardware. Do not reuse fasteners that show signs of thread damage, galling, or deformation.