Value Collection 474055PS Step Bolt 5/16-18 2 in

Product Description

The VALUE COLLECTION 474055PS is a step bolt designed for structural and assembly applications requiring a large-diameter bearing head and a standard threaded shank. Manufactured from 1006/1050 steel with a zinc-plated finish, this fastener provides corrosion resistance suitable for general industrial and construction use. The bolt features a 5/16-18 UNC thread, a 2-inch length under head, and a head diameter ranging from 1.0000 to 1.0310 inches, conforming to ANSI/ASME B18.5. It is installed by maintenance technicians, structural assemblers, and tradespeople working with wood, steel, or composite members where a wide-bearing head is required to prevent pull-through.

Step bolts are commonly used in utility, telecommunications, and industrial construction for climbing steps, railing attachments, and structural tie-downs. The wide head distributes clamping load across a broad bearing surface, reducing the risk of material deformation at the fastener hole. This 5/16-18 size is appropriate for light-to-medium structural connections where an ASME B18.5-compliant fastener is specified. The zinc plating provides a baseline level of corrosion resistance for indoor and sheltered outdoor environments.

Key Features

• 5/16-18 UNC thread for compatibility with standard nuts and tapped holes
• 2-inch length under head per ANSI/ASME B18.5 specification
• Head diameter 1.0000 to 1.0310 inches for wide bearing surface
• 1006/1050 steel construction for reliable tensile strength in general-duty applications
• Zinc-plated finish for corrosion resistance in sheltered environments
• Inch system of measurement; UNC thread standard

Compatibility

Designed as an ANSI/ASME B18.5-compliant step bolt for use with standard 5/16-18 UNC nuts and washers in general industrial, construction, and utility assembly applications.

Installation Notes

Step bolts should be installed by qualified tradespeople following applicable structural or mechanical assembly specifications. Use the appropriate wrench size for the head diameter and ensure the mating surface is clean and free of debris before seating the bolt. Apply a compatible nut and washer as required by the joint design. Do not exceed the rated load specifications for the fastener grade and thread size.