Lock Washer - External Tooth - Steel / Zinc
ASME / ANSI B18.21.1 -1999 - IMPERIAL - Corrosion resistant plating - For use with nuts & bolts to aid in preventing them from loosening
Lock Washer - External Tooth - Steel / Zinc
ASME / ANSI B18.21.1 -1999 - IMPERIAL - Corrosion resistant plating - For use with nuts & bolts to aid in preventing them from loosening 
Product #: LWZEXT006
Product is missing measurements and cannot be shipped. Please call 403-287-5340 so we can fix this issue and enable shipping.
Options: For Bolt Dia.: 3/8"
Info: .694-.670 O.D.
$22.40 /EA
Login for contractor price
Regular: $22.40 /
LWZEXT6 #6 .320-.305 O.D. , InStock
$5.66 /100PC
LWZEXT8 #8 .381-.365 O.D. , InStock
$7.55 /100PC
LWZEXT10 #10 .410-.395 O.D. , InStock
$5.75 /100PC
LWZEXT004 1/4" .510-.494 O.D. , InStock
$12.77 /100PC
LWZEXT005 5/16" .610-.588 O.D. , InStock
$20.53 /100PC
LWZEXT006 3/8" .694-.670 O.D. , InStock
$22.40 /100PC
LWZEXT007 7/16" .760-.740 O.D. , InStock
$38.42 /100PC
LWZEXT008 1/2" .900-.880 O.D. , InStock
$46.19 /100PC
LWZEXT010 5/8" 1.070-1.045 O.D. , InStock
$52.52 /100PC
LWZEXT012 3/4" 1.245-1.220 O.D. , InStock
$73.54 /100PC
LWZEXT12 #12 .475-.460 O.D. , SoldOut
$7.19 /100PC
For Bolt Dia.
Info
PROD #
Price
#6
.320-.305 O.D.
LWZEXT6
$5.66 /100PC
#8
.381-.365 O.D.
LWZEXT8
$7.55 /100PC
#10
.410-.395 O.D.
LWZEXT10
$5.75 /100PC
1/4"
.510-.494 O.D.
LWZEXT004
$12.77 /100PC
5/16"
.610-.588 O.D.
LWZEXT005
$20.53 /100PC
3/8"
.694-.670 O.D.
LWZEXT006
$22.40 /100PC
7/16"
.760-.740 O.D.
LWZEXT007
$38.42 /100PC
1/2"
.900-.880 O.D.
LWZEXT008
$46.19 /100PC
5/8"
1.070-1.045 O.D.
LWZEXT010
$52.52 /100PC
3/4"
1.245-1.220 O.D.
LWZEXT012
$73.54 /100PC
#12
.475-.460 O.D.
LWZEXT12$7.19 /100PC
Available Online: 246
Pre Order Item
Estimated Availability Date:
Estimated Availability Date:
Availability in Store:
We're low on this Washer. Please Call for Availability : 403-287-5340
QTY: 
BUY DIRECT
LWZEXT6 #6 .320-.305 O.D.
$5.66 /100PC
LWZEXT8 #8 .381-.365 O.D.
$7.55 /100PC
LWZEXT10 #10 .410-.395 O.D.
$5.75 /100PC
LWZEXT004 1/4" .510-.494 O.D.
$12.77 /100PC
LWZEXT005 5/16" .610-.588 O.D.
$20.53 /100PC
LWZEXT006 3/8" .694-.670 O.D.
$22.40 /100PC
LWZEXT007 7/16" .760-.740 O.D.
$38.42 /100PC
LWZEXT008 1/2" .900-.880 O.D.
$46.19 /100PC
LWZEXT010 5/8" 1.070-1.045 O.D.
$52.52 /100PC
LWZEXT012 3/4" 1.245-1.220 O.D.
$73.54 /100PC
LWZEXT12 #12 .475-.460 O.D.
$7.19 /100PC
We're low on this Washer. Please Call for Availability : 403-287-5340
LWZEXT4 #4 .260-.245 O.D.
We're low on this Washer. Please Call for Availability : 403-287-5340
For Bolt Dia.
Info
PROD #
Price
#6
.320-.305 O.D.
LWZEXT6
$5.66 /100PC
#8
.381-.365 O.D.
LWZEXT8
$7.55 /100PC
#10
.410-.395 O.D.
LWZEXT10
$5.75 /100PC
1/4"
.510-.494 O.D.
LWZEXT004
$12.77 /100PC
5/16"
.610-.588 O.D.
LWZEXT005
$20.53 /100PC
3/8"
.694-.670 O.D.
LWZEXT006
$22.40 /100PC
7/16"
.760-.740 O.D.
LWZEXT007
$38.42 /100PC
1/2"
.900-.880 O.D.
LWZEXT008
$46.19 /100PC
5/8"
1.070-1.045 O.D.
LWZEXT010
$52.52 /100PC
3/4"
1.245-1.220 O.D.
LWZEXT012
$73.54 /100PC
#12
.475-.460 O.D.
LWZEXT12$7.19 /100PC
Product Description
External Tooth Steel Lock Washer
√ STEEL - FOR EXTRA STRENGTH
ASME / ANSI B18.21.1 -1999
Zinc Plating
*Imperial
STANDARD SIZES
Built for use with nuts & bolts to aid in preventing them from loosening.
External Tooth Lock Washer Thicknesses
| For Bolt Diameters | Thickness |
| #4 | .019-.015 inches |
| #6 | .022-.016 inches |
| #8 | .023-.018 inches |
| #10 | .025-.020 inches |
| #12 | .028-.023 inches |
| 1/4" | .028-.023 inches |
| 5/16" | .034-.028 inches |
| 3/8" | .040-.032 inches |
| 7/16" | .040-.032 inches |
| 1/2" | .045-.037 inches |
| 5/8" | .050-.042 inches |
| 3/4" | .055-.047 inches |
| 7/8" | .060-.052 inches |
- Platings, Coatings & Finishes: There are a variety of coatings and platings that can be used in the prevention or delaying corrosion in fasteners. Platings and coatings can also enchance or change the physical look of nuts, bolts and washers for projects that require specific aesthetic care.
- Lock Washer: Lock Washers are built to prevent a bolt or nut from loosening after it has been tightened. When a bolt or nut is used with this kind of washer between the surface being bolted to, the washer uses either compression with a spring force or interlock and bite to lock the bolt or nut in place. This helps to prevent vibration from loosening the bolt or nut and causing the joint to lose strength.
- Split Lock Washers: These lock washers are made with a split where the ends are slightly uneven from each other. When compressed, the split ends bite into either the head of a bolt or the nut depending on how it is used, this helps to prevent the bolt or nut from loosening.
- Toothed Lock Washer: A toothed lock washer is comprised of a bunch of small sharp teeth either around the inner diameter, the outer diameter or both. The function of the teeth is to bite into the fastener and the material it is up against and stop the fastener from coming loose due to movement or vibration.
Product Specifications
| Vendor Part #: | EXT4 |
| Material: | Steel |
| Plating: | Zinc |
| Washer Type: | External Tooth |
- √Preventing Nuts and Bolts from Loosening
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