Weld On Nuts 1/2-13 Short 25pk

The ALLSTAR PERFORMANCE Weld On Nuts 1/2-13 Short 25-pack (ALL18551-25) is a precision fastening solution engineered for welding applications where threaded inserts must be permanently joined to fabricated structures. Each nut features a 1/2-13 inch thread specification—the industry-standard combination for vibration-resistant fastening in chassis work, roll cages, and structural assembly—with a 3/4-inch outer diameter mounting hole designed for maximum weld penetration and material engagement.

Steel construction in natural finish provides excellent thermal conductivity during the welding process and superior corrosion resistance compared to plated alternatives when exposed to high-temperature welding conditions. The short profile minimizes overall stack height while maintaining full thread strength, critical in applications where clearance or weight savings matter. A 25-piece set delivers the quantity required for complete frame builds, multiple component assemblies, or inventory depth for ongoing fabrication work. The 1/2-13 thread pitch is widely compatible with standard fastening hardware, reducing the need for specialty bolts and making replacement or service straightforward across your shop or build.

Ideal for fabricators, race teams, restoration shops, and custom builders who demand permanent, load-rated threaded attachment points without the complexity of threaded inserts or helicoils. Weld-on nuts are the standard method for adding adjustable fastening points to tube frames, welded substructures, and panels where drilling and tapping post-assembly is impractical. Whether building a race car chassis, fabricating recovery equipment, or assembling structural components, these nuts ensure clean, strong attachment that integrates seamlessly into welded construction. The set quantity supports both small-scale custom projects and professional shop inventory.