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External Tooth Lock Washer, Plated

Low carbon external tooth lock washers are used under bolt heads or nuts to increase the hold of the fastener. External tooth lock washers have teeth on the outer dimension of the washer creating a ratchet action by biting into the nut or screw head and the surface it contacts. Dimensional specifications are governed by ASME B18.21.1. Available in zinc plated finish. Zinc plating sacrifices itself, corroding before the base material, offering added corrosion resistance.

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Governing Standards
Dimensional Specifications

Dimensional Specifications

Dimensional SpecificationsExternal Tooth Lock Washer

Per ASME B18.21.1-2009
Size	Nominal	A		B		C
		Inside Diameter		Outside Diameter		Mean Section Thickness
		Max	Min	Max	Min	Max	Min
#3	0.0990	0.1090	0.1020	0.2350	0.2200	0.0160	0.0100
#4	0.1120	0.1230	0.1150	0.2600	0.2450	0.0180	0.0120
#5	0.1250	0.1360	0.1290	0.2850	0.2700	0.0200	0.0140
#6	0.1380	0.1500	0.1410	0.3200	0.3050	0.0220	0.0160
#8	0.1640	0.1760	0.1680	0.3810	0.3650	0.0230	0.0180
#10	0.1900	0.2040	0.1950	0.4100	0.3950	0.0240	0.0180
#12	0.2160	0.2310	0.2210	0.4750	0.4600	0.0270	0.0200
1/4	0.2500	0.2670	0.2560	0.5100	0.4940	0.0280	0.0230
5/16	0.3125	0.3320	0.3200	0.6100	0.5880	0.0340	0.0280
3/8	0.3750	0.3980	0.3840	0.6940	0.6700	0.0400	0.0320
7/16	0.4375	0.4640	0.4480	0.7600	0.7400	0.0400	0.0320
1/2	0.5000	0.5300	0.5130	0.9000	0.8800	0.0450	0.0370
9/16	0.5625	0.5960	0.5760	0.9850	0.9600	0.0450	0.0370
5/8	0.6250	0.6630	0.6410	1.0700	1.0450	0.0500	0.0420
3/4	0.7500	0.7950	0.7680	1.2600	1.2200	0.0550	0.0470
7/8	0.8750	0.9270	0.8970	1.4100	1.3800	0.0600	0.0520
1	1.0000	1.0600	1.0250	1.6200	1.5900	0.0670	0.0590

All dimensions are in inches.

External Tooth Lock Washer, Plated

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Diameter Inside Diameter Outside Diameter Thickness Item # Availability Price Quantity UOM

0.1680

0.3750

0.0180

WLEP 8

In Stock

$0.15933/EA

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#8 EXTERNAL TOOTH LOCK WASHER, PLATED

$0.15933/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$0.15933/EA
17250	$0.14903/EA
68970	$0.13321/EA
275870	$0.08707/EA

#10

0.1950

0.4062

0.0180

WLEP 10

In Stock

$0.02483/EA

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#10 EXTERNAL TOOTH LOCK WASHER, PLATED

$0.02483/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$0.02483/EA
14290	$0.02322/EA
57150	$0.02076/EA
228580	$0.01357/EA

5/16

0.3200

0.5938

0.0280

WLEP031

In Stock

$0.03253/EA

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5/16 EXTERNAL TOOTH LOCK WASHER, PLATED

$0.03253/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$0.03253/EA
5160	$0.03047/EA
20620	$0.02714/EA
82480	$0.01798/EA

External Tooth Lock Washer, Plated

Technical Data

Governing Standards

Governing StandardsExternal Tooth Lock Washer

Dimensional Specifications

Dimensional SpecificationsExternal Tooth Lock Washer

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#8 EXTERNAL TOOTH LOCK WASHER, PLATED

#10 EXTERNAL TOOTH LOCK WASHER, PLATED

5/16 EXTERNAL TOOTH LOCK WASHER, PLATED