Flange Nut

Flange Nut

Flange Nut

A Flange nut is a nut that has a wide flange at one end that acts as an integrated, non-spinning washer. This serves to distribute the pressure of the nut over the part being secured, reducing the chance of damage to the part and making it less likely to loosen as a result of an uneven fastening surface. The nuts are mostly hexagonal in shape and often coated with zinc.
 
The flange may be serrated to provide a locking action. The serrations are angled such that they keep the nut from rotating in direction that would loosen the nut. They help in preventing the vibration of the nut from moving the fastener, thus maintaining the holding power of nut.
 
Specifications:
 
Materials: Low Carbon Steel, Alloy Steel & Stainless steel (18-8, A2-70).
Size: M3 to M20
Grade: Class 5, Class 6, Class 8, Class A2
Finish: White/Blue/Yellow Zinc plated, Stainless steel, Galvanized or any other finish as per customer requirements.
Standards: DIN 6923, JIS 1190
Hardness: Class 8 (M5 to M16) – HV (Vickers Hardness) of 188-302
 
Standard specifications of our DIN 6923 Flange Nuts are as below:
 

Nominal

Thread Pitch (p)

Overall Height (m)

Width / Across Flat (s)

Flange diameter (dc)

    Min. Max. Min. Max.
M3 0.50 3.40 4.0 5.30 8.0
M4 0.70 4.20 4.65 6.78 10.0
M5 0.80 4.70 5.0 7.78 11.8
M6 1.00 5.70 6.0 9.78 14.2
M8 1.25 7.60 8.0 12.73 17.9
M10 1.50 9.60 10.0 14.73 21.8
M12 1.75 11.60 12.0 17.73 26.0
M16 2.00 15.30 16.0 23.67 34.5
M20 2.50 18.90 20.0 29.67 42.8
 
 

 

 

 

 
 

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