Value Collection 781515PS Carriage Bolt 5/8-11 4 in 18-8 Ss

Product Description

The VALUE COLLECTION 781515PS is a 5/8-11 UNC carriage bolt with a 4-inch length under the head and a square neck, manufactured from 18-8 stainless steel with a bright uncoated finish. Carriage bolts use a domed head and a square shoulder that bites into the material being fastened, preventing rotation during tightening without requiring a wrench on the bolt head. The 18-8 stainless steel construction provides corrosion resistance suitable for outdoor, marine-adjacent, and wet-environment applications. This fastener is sold individually and is appropriate for use by contractors, maintenance technicians, and trade professionals working with structural assemblies, wood framing connections, or equipment mounting applications.

This carriage bolt is suited for wood-to-wood and wood-to-metal fastening in residential and light commercial construction, equipment installation, and general structural assembly. The 5/8-11 coarse thread is a common size used in heavy-duty framing hardware, dock construction, playground equipment, and utility installations where corrosion resistance is a priority. The uncoated bright finish is compatible with standard nuts and washers in the same 5/8-11 thread specification.

Key Features

• 5/8-11 UNC coarse thread for broad hardware compatibility
• 4-inch length under head for deep fastening applications
• Square neck prevents bolt rotation during nut tightening
• 18-8 stainless steel construction resists corrosion in wet and outdoor environments
• Bright uncoated finish — no coating to chip or flake over time
• Sold individually with a minimum order quantity of 1

Compatibility

Designed as a standard 5/8-11 UNC carriage bolt compatible with any 5/8-11 hex nut and washer combination meeting ASME B18.5 or equivalent inch-series fastener standards.

Installation Notes

Installation typically requires drilling a clean through-hole sized to the bolt shank diameter so the square neck seats flush and locks without spinning. A standard wrench or socket is applied to the nut side only — do not attempt to drive the domed head. Follow applicable building codes such as the IBC or NDS for wood connection load requirements when used in structural applications. Confirm material compatibility before installing stainless fasteners in contact with dissimilar metals to avoid galvanic corrosion.