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PRODUCT SPECIFICATIONS
Part #: 0000-123650
Fastener Type: Hex Flange Nut with Serration
Size Description: M20 x 2.50
Diameter/Nominal Size: M20
Thickness: 18.90-20.00mm
Wrench Size/Across Flats: 29.67-30.00mm
Flange Diameter: 42.80mm
Thread Pitch: 2.50
Thread Pitch Type: Coarse
Thread Direction: Right
System of Measurement: Metric
Property Class: 8
Material: Medium Carbon Steel
Finish: Zinc Plated
Drive Type: External Hex
Standards Met: DIN 6923 / ISO 4161
Used with: Bolts/Screws up to Class 8.8
Average Piece Weight: 0.2120000 lbs.
Lock nuts resist loosening of the screw under vibration or force to prevent loosening from a bolted joint. Types of lock nuts are prevailing torque nuts (Stover), elastic stop nuts (Nyloc), serrated flange (whiz lock), 2-way (reversible), star lock (KEPS) and many others.