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Internal Tooth Lock Washer, Plated

Low carbon internal tooth lock washers are used under bolt heads or nuts to increase the hold of the fastener. Internal tooth lock washers have teeth on the inner 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 SpecificationsInternal Tooth Lock Washer

Per ASME B18.21.1-2009
Size	Nominal	Inside Diameter		Outside Diameter		Mean Section Thickness
Size	Nominal	Max	Min	Max	Min	Max	Min
#2	0.0860	0.0950	0.0890	0.2000	0.1750	0.0160	0.0100
#3	0.0990	0.1090	0.1020	0.2320	0.2150	0.0160	0.0100
#4	0.1120	0.1230	0.1150	0.2700	0.2450	0.0180	0.0120
#5	0.1250	0.1360	0.1290	0.2800	0.2550	0.0200	0.0140
#6	0.1380	0.1500	0.1410	0.2950	0.2750	0.0220	0.0160
#8	0.1640	0.1760	0.1680	0.3400	0.3250	0.0230	0.0180
#10	0.1900	0.2040	0.1950	0.3810	0.3650	0.0240	0.0180
#12	0.2160	0.2310	0.2210	0.4100	0.3940	0.0270	0.0200
1/4	0.2500	0.2670	0.2560	0.4780	0.4600	0.0280	0.0230
5/16	0.3125	0.3320	0.3200	0.6100	0.5940	0.0340	0.0280
3/8	0.3750	0.3980	0.3840	0.6920	0.6700	0.0400	0.0320
7/16	0.4375	0.4640	0.4480	0.7890	0.7400	0.0400	0.0320
1/2	0.5000	0.5300	0.5120	0.9000	0.8670	0.0450	0.0370
9/16	0.5625	0.5960	0.5760	0.9850	0.9570	0.0450	0.0370
5/8	0.6250	0.6630	0.6400	1.0710	1.0450	0.0500	0.0420
3/4	0.7500	0.7950	0.7690	1.2450	1.2200	0.0550	0.0470
7/8	0.8750	0.9270	0.8940	1.4100	1.3640	0.0600	0.0520
1	1.0000	1.0600	1.0190	1.6370	1.5900	0.0670	0.0590

All dimensions are in inches.

Internal Tooth Lock Washer, Plated

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

0.1410

0.2812

0.0160

WLIP 6

3-5 Working Days

$0.04318/EA

See Quantity Discounts

#6 INTERNAL TOOTH LOCK WASHER, PLATED

$0.04318/EA

Qty

3-5 Working Days

Product Detail

Quantity	Price
Quantity	Price
1	$0.04318/ EA
25000	$0.04039/ EA
100000	$0.0361/ EA
400000	$0.0236/ EA

0.1680

0.3281

0.0180

WLIP 8

3-5 Working Days

$0.04318/EA

See Quantity Discounts

#8 INTERNAL TOOTH LOCK WASHER, PLATED

$0.04318/EA

Qty

3-5 Working Days

Product Detail

Quantity	Price
Quantity	Price
1	$0.04318/ EA
16670	$0.04039/ EA
66670	$0.0361/ EA
266670	$0.0236/ EA

#10

0.1950

0.3750

0.0180

WLIP 10

In Stock

$0.07703/EA

See Quantity Discounts

#10 INTERNAL TOOTH LOCK WASHER, PLATED

$0.07703/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$0.07703/ EA
12500	$0.07205/ EA
50000	$0.0644/ EA
200000	$0.0421/ EA

1/4

0.2560

0.4688

0.0230

WLIP025

In Stock

$0.02758/EA

See Quantity Discounts

1/4 INTERNAL TOOTH LOCK WASHER, PLATED

$0.02758/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$0.02758/ EA
8340	$0.02583/ EA
33340	$0.02303/ EA
133340	$0.01517/ EA

5/16

0.3200

0.5938

0.0280

WLIP031

In Stock

$0.09007/EA

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5/16 INTERNAL TOOTH LOCK WASHER, PLATED

$0.09007/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$0.09007/ EA
3850	$0.08438/ EA
15390	$0.07514/ EA
61540	$0.0498/ EA

3/8

0.3840

0.6875

0.0320

WLIP037

In Stock

$0.06869/EA

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3/8 INTERNAL TOOTH LOCK WASHER, PLATED

$0.06869/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$0.06869/ EA
2950	$0.06449/ EA
11770	$0.05767/ EA
47060	$0.03818/ EA

7/16

0.4480

0.7500

0.0320

WLIP043

In Stock

$0.09629/EA

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7/16 INTERNAL TOOTH LOCK WASHER, PLATED

$0.09629/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$0.09629/ EA
2640	$0.09033/ EA
10530	$0.08016/ EA
42110	$0.05379/ EA

1/2

0.5120

0.8750

0.0370

WLIP050

In Stock

$0.15384/EA

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1/2 INTERNAL TOOTH LOCK WASHER, PLATED

$0.15384/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$0.15384/ EA
1520	$0.14441/ EA
6070	$0.12803/ EA
24250	$0.08626/ EA

9/16

0.5760

0.9688

0.0370

WLIP056

3-5 Working Days

$0.14931/EA

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9/16 INTERNAL TOOTH LOCK WASHER, PLATED

$0.14931/EA

Qty

3-5 Working Days

Product Detail

Quantity	Price
Quantity	Price
1	$0.14931/ EA
1250	$0.14016/ EA
5000	$0.12426/ EA
20000	$0.08372/ EA

5/8

0.6410

1.0625

0.0420

WLIP062

In Stock

$0.1676/EA

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5/8 INTERNAL TOOTH LOCK WASHER, PLATED

$0.1676/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$0.1676/ EA
1070	$0.15745/ EA
4260	$0.13936/ EA
17030	$0.09468/ EA

3/4

0.7690

1.2344

0.0470

WLIP075

In Stock

$0.1898/EA

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3/4 INTERNAL TOOTH LOCK WASHER, PLATED

$0.1898/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$0.1898/ EA
1360	$0.17843/ EA
5410	$0.1578/ EA
24330	$0.10782/ EA

7/8

0.8970

1.3750

0.0520

WLIP087

In Stock

$0.13709/EA

See Quantity Discounts

7/8 INTERNAL TOOTH LOCK WASHER, PLATED

$0.13709/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$0.13709/ EA
1030	$0.12896/ EA
4090	$0.11392/ EA
18370	$0.07842/ EA

1.0250

1.5938

0.0590

WLIP100

In Stock

$0.38248/EA

See Quantity Discounts

1 INTERNAL TOOTH LOCK WASHER, PLATED

$0.38248/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$0.38248/ EA
730	$0.36007/ EA
2900	$0.31783/ EA
13050	$0.21987/ EA

Internal Tooth Lock Washer, Plated

Technical Data

Governing Standards

Governing StandardsInternal Tooth Lock Washer

Dimensional Specifications

Dimensional SpecificationsInternal Tooth Lock Washer

Grade

Diameter

Thickness

Outside Diameter

Inside Diameter

#6 INTERNAL TOOTH LOCK WASHER, PLATED

#8 INTERNAL TOOTH LOCK WASHER, PLATED

#10 INTERNAL TOOTH LOCK WASHER, PLATED

1/4 INTERNAL TOOTH LOCK WASHER, PLATED

5/16 INTERNAL TOOTH LOCK WASHER, PLATED

3/8 INTERNAL TOOTH LOCK WASHER, PLATED

7/16 INTERNAL TOOTH LOCK WASHER, PLATED

1/2 INTERNAL TOOTH LOCK WASHER, PLATED

9/16 INTERNAL TOOTH LOCK WASHER, PLATED

5/8 INTERNAL TOOTH LOCK WASHER, PLATED

3/4 INTERNAL TOOTH LOCK WASHER, PLATED

7/8 INTERNAL TOOTH LOCK WASHER, PLATED

1 INTERNAL TOOTH LOCK WASHER, PLATED