Fragola Performance Systems 597104 -4 AN Male Steel Weld-In Bung

The Fragola Performance Systems 597104 is a -4 AN male steel weld-in bung designed for professional-grade plumbing installations in racing and high-performance applications. This fitting features a 1.0-inch diameter stepped base for secure welding into fuel cells, oil pans, fabricated tanks, or custom plumbing projects.

Key Features:

• -4 AN male thread (7/16-20 UNF) for versatile hose and fitting connections
• Constructed from high-quality steel with zinc finish for corrosion resistance
• 1.0-inch diameter step provides ample welding surface area
• Manufactured in the USA to exacting standards for leak-free performance
• Compatible with fuel, oil, coolant, and other automotive fluid systems
• Precision-machined threads ensure tight, reliable connections

Fragola Performance Systems manufactures 99% of their products in their Connecticut facility, ensuring consistent quality and tight tolerances. This weld-in bung is ideal for custom fabrication projects where permanent AN fittings are required. The stepped design allows for easy alignment and welding, while the -4 AN male thread accepts any standard -4 AN female hose end or adapter.