Plain Periphery
Recommended to prevent surface marring.lw29-2
Toothed Periphery Type
Recommended to prevent shifting.lw29-3
  • Use where force and rigidity are required when fastening in soft or thin material.
  • Distributes load over wide area.
  • Spans oversized or elongated holes.
  • Internal teeth lock into bolt head or nut to prevent backoff.

 

Plain Periphery Type

Nominal
Washer Size
Hole Dia. Min.Hole Dia. Max.Outside Dia. Min.Outside Dia. Max.ThicknessMinimum
Height
WCL Part
Number
Cross
Reference
100.1920.2040.9911.0090.048.31DMPP-0190-16-014510-16-01
1/40.2560.2671.1151.1350.0399.99DMPP-0250-18-014514-18-01
5/160.320.3320.9911.0090.059.36DMPP-0312-16-014518-16-01
5/160.320.3321.241.260.0514.61DMPP-0312-20-014518-20-01
3/80.3840.3981.3651.3850.06222.95DMPP-0375-22-014520-22-01

Toothed Periphery Type

Nominal
Washer Size
Hole Dia. Min.Hole Dia. Max.Outside Dia. Min.Outside Dia. Max.ThicknessMinimum
Height
WCL Part
Number
Cross
Reference
100.1960.20.9911.0090.059.36DMTP-0190-16-014610-16-01
100.1960.20.9911.0090.0294.46DMTP-0190-16-024610-16-02
1/40.2560.2671.1151.1350.049.46DMTP-0250-18-014614-18-01
3/80.3840.3981.3651.3850.06221.73DMTP-0375-22-014620-22-01
3/80.380.391.5951.6250.07840.28DMTP-0375-26-014620-26-01
1/20.5120.5291.5951.6250.07837.83DMTP-0500-26-014624-26-01
5/80.640.6591.861.890.07847.6DMTP-0625-30-014628-30-01