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Fair Wind Fasteners

Silicon Bronze Hex Flange Nut

Silicon Bronze Hex Flange Nut

Regular price $2.88
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651 Silicon Bronze Serrated Hex Flange Nuts

Marine Grade | UNS C65100

Secure your build with confidence using our 651 Silicon Bronze Serrated Hex Flange Nuts—the premium fastening choice for high-strength, corrosion-resistant applications in marine and coastal environments. Precision-machined from UNS C65100 silicon bronze, these flange nuts are trusted by boatbuilders, shipyards, and restoration professionals who demand uncompromising durability and performance.

Key Features:

  • Material: 651 Silicon Bronze (UNS C65100)
  • Integrated Flange: Distributes load evenly and eliminates the need for a washer
  • Serrated Bearing Surface: Locks in place and resists vibration-backed loosening
  • Thread Type: Unified National (Imperial)
  • Corrosion Resistance: Outstanding in saltwater and high-moisture environments

Why Choose These Nuts?

Unlike standard flange nuts, the serrated face bites into mating surfaces, providing a mechanical lock that resists loosening due to vibration or torque cycling. Paired with a silicon bronze bolt or machine screw, these nuts form an unbeatable union that won't gall, seize, or degrade like stainless steel can in wet or dissimilar-metal conditions.

Common Uses:

  • Wooden boat construction and refits
  • Deck hardware installations
  • Coastal architectural projects
  • Outdoor furniture and copper sculpture assembly
  • Anywhere vibration resistance and long-term corrosion performance are critical

Bronze Flange Nut Dimensions:

Bronze Flange Nut Drawing
 Size Flange Diameter (FD) Total Height (TH)
1/4"-20

5/16"-18 0.659" 0.275"
3/8"-16 0.725" 0.340"
1/2"-13 1.022" 0.455"
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