Use Anti-Seize to prevent galling on the bulkhead nut.
Material: 304 Stainless Steel w/ Natural Finish Flanged Hex & Bulkhead Nuts - More Attractive Than Standard Hex & Washer AN Flare on Both Ends Fits Through Frame Tubing - From 1.5" to 2.0" Thick Sold Individually w/ Matching Flanged Bulkhead Nut Ideal for Use on Street Rod & Provides a Custom Look w/o Brackets or Tabs Ideal for Use on Brakes, Fuel System, Transmission Cooler & Other Plumbing SystemsProduct Description:
Bulkhead Fitting Nut 4 AN Stainless Natural PairEarl's Performance Products was founded by Earl Fouts in 1955 in Lawndale, California. The mission was to supply high-quality military aircraft surplus plumbing components directly to the racing industry from a small retail outlet. As the military surplus market dried up, Earl recognized the need for continuity of supply for the racing market and pioneered the Earl's range of hoses and fittings that are still used today. In doing so he created the racing aftermarket plumbing industry.