Stainless Steel Flange Nuts

About Stainless Steel Flange Nuts

Stainless steel flange nuts are high-strength, corrosion-resistant fasteners featuring an integrated, wide washer-like base that distributes pressure, reduces surface damage, and prevents loosening. Often featuring serrations for a locking action, they are commonly used in automotive, construction, and machinery applications to replace separate nut-washer combinations. 

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• Integrated Washer: The wide flange eliminates the need for a separate washer, spreading the load across a larger area to prevent surface damage.
• Material: Primarily constructed from durable stainless steel grades such as 304, 316, and 18-8, offering high corrosion resistance for challenging, wet, or chemical environments.
• Serrated Type: Often, the bottom surface features serrations that grip the material, acting as a lock to prevent loosening due to vibration.
• Shapes: Most commonly hexagonal, though 12-point designs exist for high-torque requirements.
• Standards: Comply with various standards, including DIN 6923, JIS B1190, and ISO 4161. 
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• Automotive & Machinery: Engine manifolds, exhaust systems, and general assembly where vibration is a factor.
• Construction & Industrial: Used with oversized or irregular holes due to the large bearing surface.
• Marine & Food Processing: Environments requiring high corrosion resistance. 
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• Sizes: Metric ranging from M4 to M100, including common M8 or M10 sizes.
• Thread Types: Available in coarse and fine threads (UNC, UNF, UNEF).
• Types: Standard hex flange, serrated flange, and flange lock nuts. 
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