316/A4 Metric Stainless Steel Hex Flange Nuts

Serrated Hex Flange Nuts, A4 Stainless Steel

Marine Grade | A4 316 Stainless Steel | DIN 6923 Standard

Secure your build with confidence using our 316/A4 Stainless Serrated Hex Flange Nuts—the premium fastening choice for high-strength, corrosion-resistant applications in marine and coastal environments. Precision made from 316/A4 Stainless, these flange nuts are trusted by boatbuilders, shipyards, and restoration professionals who demand uncompromising durability and performance.

Key Features:

• Material: 316/A4 Stainless, not 18-8, 304, or A2
• Integrated Flange: Distributes load evenly and eliminates the need for a washer
• Serrated Bearing Surface: Locks in place and resists vibration-backed loosening
• 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 stainless steel 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:

• Boat construction and refits
• Deck hardware installations
• Coastal architectural projects
• Outdoor furniture, assemblies, or machinery
• Anywhere vibration resistance and long-term corrosion performance are critical

Metric Stainless Flange Nut Dimensions:

Size	Flange Diameter (FD)	Total Height (TH)
M6-1.0	14.2mm	5.9mm
M8-1.25	17.9mm	8.0mm
M10-1.5	21.8mm	9.8mm
M12-1.75	26.0mm	11.8mm