Value Collection 216199MSC Carriage Bolt 1/2-13 Grade 8

Product Description

The VALUE COLLECTION 216199MSC is a Grade 8 alloy steel carriage bolt designed for high-strength fastening applications. It features a 1/2-13 UNC thread with a 3-1/2 inch length under head and a square neck that locks into place as the bolt is drawn tight, preventing rotation during installation. The fully threaded shank and zinc trivalent chromate finish provide corrosion resistance suitable for structural and mechanical assemblies. This bolt conforms to SAE J429 standards and is sized in the inch measurement system. It is appropriate for use by contractors, millwrights, equipment fabricators, and maintenance trades working on structural connections, machinery, or heavy equipment.

This carriage bolt is suited for residential and commercial construction, agricultural equipment, and general industrial fabrication where a flush, dome-head fastener with anti-rotation capability is required. The Grade 8 rating indicates a high tensile strength classification, making it appropriate for joints subject to significant shear or tension loads. The zinc trivalent chromate finish adds a layer of corrosion protection for use in moderately exposed environments. This product is sold in a minimum order quantity of 5 with a package quantity of 1.

Key Features

• 1/2-13 UNC thread for broad compatibility with standard nuts and threaded plates
• 3-1/2 inch length under head, fully threaded shank
• Square neck design prevents bolt rotation during tightening without a wrench on the bolt head
• Grade 8 alloy steel construction for high tensile strength applications
• Zinc trivalent chromate finish for corrosion resistance
• Conforms to SAE J429 fastener standard

Compatibility

Designed as a standard inch-system carriage bolt compatible with 1/2-13 UNC nuts, washers, and threaded inserts conforming to SAE J429 specifications.

Installation Notes

Installation is performed by inserting the bolt through a pre-drilled hole and drawing a nut down from the threaded end; the square neck seats into the hole and resists rotation without requiring a tool on the head. Power down or de-energize any equipment before fastening in mechanical or electrical enclosure applications. Follow applicable structural codes and torque specifications for Grade 8 fasteners as defined by the governing project standard or engineering specification. Do not substitute a lower-grade nut or washer on a Grade 8 bolt assembly.