Value Collection R63640229 Carriage Bolt 3/8-16 1-1/4 in

Product Description

The VALUE COLLECTION R63640229 is a 3/8-16 carriage bolt with a 1-1/4 inch length under head, manufactured from Grade 18-8 stainless steel with an uncoated finish. The square neck design locks into place during installation to prevent rotation without a wrench on the bolt head. This fastener is used across a wide range of structural, mechanical, and trade applications where corrosion resistance is required. It follows Unified National Coarse (UNC) thread standards and is measured by length under head in the inch system.

This carriage bolt is suited for use in plumbing, HVAC mounting, electrical panel work, pool equipment installations, and general structural assemblies where stainless steel fasteners are specified for corrosion resistance. The Grade 18-8 stainless construction makes it a common choice for outdoor, wet, or chemically exposed environments. It is appropriate for both light commercial and residential applications where code or spec calls for a non-ferrous or corrosion-resistant fastener.

Key Features

• 3/8-16 UNC thread for broad compatibility with standard nuts and threaded hardware
• 1-1/4 inch length under head suits shallow-to-medium grip-range applications
• Grade 18-8 stainless steel provides strong corrosion resistance in wet or outdoor environments
• Square neck prevents bolt rotation during tightening without a second tool on the head
• Uncoated finish — no platings or coatings that could flake or react with stainless nuts

Compatibility

Designed as a standard 3/8-16 UNC carriage bolt compatible with any 3/8-16 threaded nut or tapped hole following inch-system UNC fastener standards.

Installation Notes

Installation is typically performed by a mechanic, plumber, electrician, or HVAC technician as part of equipment mounting or structural assembly work. Insert the bolt through a pre-drilled hole sized for a 3/8 inch fastener so the square neck seats firmly into the material and prevents rotation. Tighten the mating nut from the opposite side using a standard wrench or socket. Do not apply excessive torque that could strip the stainless threads — stainless fasteners are susceptible to galling if overtightened or run dry.