Prime-line Products Gd 52103 Carriage Bolt Nut 1/4-20

Product Description

The PRIME-LINE PRODUCTS GD 52103 is a zinc-plated carriage bolt and nut set designed for garage door hardware attachment. The bolt features a flat, smooth head profile that sits flush against the door surface for a clean finished appearance. At 1/4-20 thread size and 1-7/8 inches in length, this fastener is sized for standard garage door hardware mounting applications. The zinc plating provides corrosion resistance in the exposed environments typical of garage door installations. Each set ships as a single bolt-and-nut assembly, making it a direct, one-piece solution for field replacements or new installs.

This carriage bolt and nut set is used to secure hinges, brackets, struts, and other hardware to residential garage doors. The smooth domed head prevents snagging and keeps the exterior face of the door panel clean. Service technicians and installers reach for this fastener when replacing worn or stripped hardware fasteners during routine maintenance calls or full door assembly work.

Key Features

• 1/4-20 thread pitch sized for standard garage door hardware mounting
• 1-7/8 inch length fits typical door panel and hardware stack thickness
• Zinc plating resists corrosion in exposed outdoor environments
• Flat smooth head profile delivers a flush, snag-free exterior finish
• Includes matching nut for a complete fastening assembly

Compatibility

Designed as a replacement fastener for attaching hardware to most residential garage doors requiring a 1/4-20 carriage bolt.

Installation Notes

Installation is typically performed by garage door service technicians or experienced DIYers. Disconnect or disengage any automatic opener and relieve spring tension before working on garage door hardware. Use a wrench to hold the nut while tightening to avoid spinning the bolt shank. Follow local building codes and the door manufacturer guidelines for fastener torque and hardware placement.

Technical Specifications

• Thread Size: 1/4-20
• Length: 1-7/8 inches
• Finish: Zinc Plated
• Head Style: Carriage (flat smooth dome)
• Weight: 0.435 pounds
• Includes: Bolt and nut
• UPC: 00049793521033

Standard Information

• Brand: PRIME-LINE PRODUCTS
• Manufacturer Part Number: GD 52103