Plain Periphery Type
Recommended where surfaces should not be marred or snagging could be a problemlw30-1
Toothed Periphery Type
Recommended to prevent shifting.
 
 lw30-2
Flat Rim Type
Recommended for electrical applications or when fastening to plastic or other special materials.lw30-3
  • Use where force and resiliency; are needed when fastening in soft of thin materials.
  • Distributes load over wide area.
  • Spans oversize or elongated holes.
  • Internal teeth lock into bolt head or nut to prevent backoff rotation.

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
40.1160.1230.3720.3830.0250.541DSPP-0112-06-014704-06-01
60.1420.150.3720.3830.020.491DSPP-0138-06-014706-06-01
80.1760.1680.3720.3830.0220.442DSPP-0164-06-014708-06-01
100.1950.2040.3720.3830.0220.396DSPP-0190-06-014710-06-01
100.1950.2040.4950.5050.0251.05DSPP-0190-08-014710-08-01
100.1950.2040.6180.6320.0251.84DSPP-0190-10-014710-10-01
1/40.2560.2670.8650.8850.034.45DSPP-0250-14-014714-14-01

Flat Rim Type

Nominal
Washer Size
Hole Dia. Min.Hole Dia. Max.Outside Dia. Min.Outside Dia. Max.ThicknessMinimum
Height
WCL Part
Number
Cross
Reference
40.120.1240.2650.2750.0220.221DSFR-0112-04-014704-04-01
40.120.1240.2650.2750.0150.242DSFR-0112-04-024704-04-02
60.1460.150.3230.3330.0250.372DSFR-0138-05-014706-05-01
60.1460.150.3230.3330.0170.253DSFR-0138-05-024706-05-02
60.1460.150.3720.3830.0290.65DSFR-0138-06-024706-06-02
100.1950.2040.4940.5060.0251.34DSFR-0190-08-024710-08-02
100.1950.2040.6180.6320.0251.83DSFR-0190-10-014710-10-01

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
40.1160.1230.5560.5690.0251.5DSTP-0112-09-014804-09-01
60.1460.150.5560.5690.0251.47DSTP-0138-09-014806-09-01
80.1680.1760.5560.5690.0251.42DSTP-0164-09-014808-09-01
100.1950.2040.5560.5690.0291.58DSTP-0190-09-014810-09-01
100.1950.2040.8650.8850.0253.91DSTP-0190-14-014810-14-01
120.2210.2310.5560.5690.0392.08DSTP-0216-09-014812-09-01
120.2210.2310.8650.8850.0395.32DSTP-0216-14-014812-14-01
1/40.2560.2670.6780.6980.053.76DSTP-0250-11-014814-11-01
1/40.2560.2670.8650.8850.0395.18DSTP-0250-14-014814-14-01
1/40.2880.2930.8650.8850.0628.01DSTP-0250-14-024814-14-02
5/160.320.3320.991.010.06210.76DSTP-0312-16-024818-16-02
3/80.3840.3980.991.010.06210.11DSTP-0375-16-014820-16-01
3/80.3840.3981.241.260.0514.11DSTP-0375-20-014820-20-01
7/160.4480.4631.171.190.06211.2DSTP-0437-19-014822-19-01
1/20.510.5291.241.260.0512.79DSTP-0500-20-014824-20-01