18-8 Stainless Steel Serrated Flange Nut | 3/8"-16 Thread Size

These 18-8 Stainless Steel Serrated Flange Nuts in 3/8"-16 thread size are designed for secure, vibration-resistant fastening without the need for a separate washer. The integrated serrated flange grips the surface to prevent loosening, making these nuts ideal for equipment exposed to movement, torque, and vibration.

Constructed from corrosion-resistant 18-8 stainless steel, these flange nuts resist rust, moisture, and chemicals—perfect for outdoor, marine, industrial, pressure washer, and softwash applications. Key Features

• Made from corrosion-resistant 18-8 stainless steel

• Serrated flange provides vibration resistance and prevents loosening

• 3/8"-16 coarse thread fits standard bolts and studs

• Eliminates the need for a separate washer

• Excellent for high-vibration or load-bearing applications

• Ideal for outdoor, marine, and chemical-exposed environments
  

Product Specs

• Material: 18-8 Stainless Steel (AISI 304)

• Thread Size: 3/8"-16 (Coarse thread)

• Nut Type: Serrated flange nut
  

• Standards: Meets ANSI/ASME B18.16.4

• Applications: Softwash rigs, pressure washer builds, trailers, fabrication, marine hardware, construction equipment, industrial machinery

Perfect For

• Pressure washing & softwash equipment

• Trailer frame and rig fabrication

• Marine and outdoor machinery

• Automotive, small engine, and industrial repair

• Anywhere vibration-resistant fastening is required

These serrated flange nuts offer superior holding power and corrosion resistance—perfect for demanding environments where fasteners must stay tight.