Value Collection 474052PS Step Bolt 5/16-18 Zinc Steel

Product Description

The VALUE COLLECTION 474052PS is a step bolt designed for structural and general fastening applications where a large-diameter bearing surface is required under the head. It features a 5/16-18 UNC thread with a 1-1/2 inch length under head and a 1-1/16 inch diameter head, giving it the wide, low-profile head geometry that defines the step bolt form. The fastener is manufactured from 1006/1050 steel and finished with a zinc-plating for baseline corrosion resistance. It conforms to ANSI/ASME B18.5 dimensional standards. Electricians, ironworkers, and general contractors install step bolts when connecting wood framing or structural members to steel, or where a large head is needed to resist pull-through.

Step bolts in this size range are commonly used in light structural assemblies, wood-to-steel connections, utility pole hardware, and general construction framing. The 5/16-18 thread is a standard UNC coarse thread, which provides good resistance to loosening under vibration and is compatible with standard hex nuts and washers. This item is sold in single units with a minimum order quantity of 25 pieces, making it suited to contractors and tradespeople purchasing in job-lot quantities.

Key Features

• 5/16-18 UNC coarse thread for compatibility with standard hardware
• 1-1/2 inch length under head provides adequate grip range for typical structural connections
• 1-1/16 inch head diameter delivers a wide bearing surface to resist pull-through
• 1006/1050 steel construction balances strength and formability
• Zinc-plated finish provides baseline protection against corrosion in dry and mildly humid environments
• Meets ANSI/ASME B18.5 dimensional standard for step bolts

Compatibility

Designed as a standard ANSI/ASME B18.5 step bolt suitable for use with 5/16-18 UNC hex nuts, flat washers, and compatible structural hardware in inch-measurement fastening applications.

Installation Notes

Step bolts are typically installed by general contractors, ironworkers, or electricians using standard hand tools or an impact driver with the appropriate socket. Always ensure the mating nut and any washers match the 5/16-18 UNC thread standard. Inspect the zinc-plated finish before installation and avoid use in fully submerged or highly corrosive environments where a higher-grade coating or stainless material would be more appropriate. Follow applicable structural or electrical codes for fastener torque and connection requirements.