Value Collection 218159MSC Carriage Bolt 3/4-10 2-1/2 in Grade 8

Product Description

The VALUE COLLECTION 218159MSC is a fully threaded carriage bolt designed for structural and mechanical fastening applications where high strength and corrosion resistance are required. This bolt features a 3/4-10 UNC thread and measures 2.5 inches in length under the head. It is manufactured from Grade 8 alloy steel, providing tensile strength well suited for heavy-duty assemblies. The zinc trivalent chromate finish adds a layer of corrosion protection suitable for demanding environments. The square neck under the domed head prevents rotation during installation, making it ideal for wood, metal, and composite connections. Installers in construction, manufacturing, and industrial maintenance will find this bolt a reliable fit for high-load joints.

This carriage bolt is suited for residential and commercial construction, equipment fabrication, and general structural assembly. Its fully threaded shank and square neck design make it appropriate for through-bolted connections in wood framing, steel plate joining, and machinery mounting. The SAE J429 standard compliance confirms it meets established mechanical and dimensional requirements for Grade 8 fasteners. A single bolt is included per package, making it easy to source in exact quantities for repair or replacement work.

Key Features

• Grade 8 alloy steel construction for high tensile strength in demanding fastening applications
• Fully threaded shank along the 2.5-inch length under head for maximum thread engagement
• Square neck under the head prevents bolt rotation during nut tightening without the need for a secondary tool
• Zinc trivalent chromate finish provides corrosion resistance in exposed or harsh environments
• 3/4-10 UNC thread size and SAE J429 standard compliance ensure dimensional accuracy and interchangeability
• Sold individually, allowing precise quantity procurement for service and repair jobs

Compatibility

Designed as a standard-dimension SAE J429 Grade 8 carriage bolt for use in structural, mechanical, and industrial fastening applications requiring a 3/4-10 UNC fully threaded square-neck bolt.

Installation Notes

Installation is typically performed by construction tradespeople, millwrights, or maintenance technicians using standard wrenches and sockets. Power down or de-energize any associated equipment before fastening in mechanical assemblies. Insert the bolt from the appropriate side so the square neck seats firmly into the mating material before applying the nut, preventing spin-out. Torque to values specified in the applicable project drawings or structural engineer specifications, as no torque value is provided by the manufacturer for this listing.