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Silicon Bronze Split Lock Washer

Silicon Bronze split lock washers are used under Silicon Bronze bolt heads or nuts to increase the hold of the fastener or to increase the bearing surface. Split lock washers are helical-shaped split rings. When fastened, the two ends exert a spring force on the fastener to create increased friction and resistance to motion. Dimensional specifications are governed by ASME B18.21.1.

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Governing Standards
Dimensional Specifications

Dimensional Specifications

Dimensional SpecificationsSplit Lock Washer

Per ASME B18.21.1-2009
Size	Nominal	A		B	T	W	BW
		Inside Diameter		Outside Diameter	Mean Section Thickness	Section Width	Bearing Width
		Max	Min	Max	Min	Min	Min
#2	0.0860	0.0940	0.0880	0.1720	0.0200	0.0350	0.0240
#3	0.0990	0.1070	0.1010	0.1950	0.0250	0.0400	0.0280
#4	0.1120	0.1200	0.1140	0.2090	0.0250	0.0400	0.0280
#5	0.1250	0.1330	0.1270	0.2360	0.0310	0.0470	0.0330
#6	0.1380	0.1480	0.1410	0.2500	0.0310	0.0470	0.0330
#8	0.1640	0.1740	0.1670	0.2930	0.0400	0.0550	0.0380
#10	0.1900	0.2000	0.1930	0.3340	0.0470	0.0620	0.0430
#12	0.2160	0.2270	0.2200	0.3770	0.0560	0.0700	0.0490
1/4	0.2500	0.2600	0.2520	0.4870	0.0620	0.1090	0.0760
5/16	0.3125	0.3220	0.3140	0.5830	0.0780	0.1250	0.0870
3/8	0.3750	0.3850	0.3770	0.6800	0.0940	0.1410	0.0990
7/16	0.4375	0.4500	0.4400	0.7760	0.1090	0.1560	0.1090
1/2	0.5000	0.5120	0.5020	0.8690	0.1250	0.1710	0.1200
9/16	0.5625	0.5740	0.5640	0.9650	0.1410	0.1880	0.1320
5/8	0.6250	0.6410	0.6280	1.0730	0.1560	0.2090	0.1420
3/4	0.7500	0.7660	0.7530	1.2650	0.1880	0.2340	0.1640
7/8	0.8750	0.8940	0.8780	1.4590	0.2190	0.2660	0.1860
1	1.0000	1.0240	1.0030	1.6560	0.2500	0.2970	0.2080

All dimensions are in inches.

Silicon Bronze Split Lock Washer

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

0.1200

0.2090

0.0250

WLSB 4

In Stock

$0.04066/EA

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#4 SILICON BRONZE SPLIT LOCK WASHER

$0.04066/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$0.04066/EA
22940	$0.03809/EA
91750	$0.03392/EA
366980	$0.02248/EA

0.1480

0.2500

0.0310

WLSB 6

In Stock

$0.04242/EA

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#6 SILICON BRONZE SPLIT LOCK WASHER

$0.04242/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$0.04242/EA
15340	$0.03974/EA
61350	$0.03539/EA
245400	$0.02345/EA

0.1740

0.2930

0.0400

WLSB 8

In Stock

$0.04087/EA

See Quantity Discounts

#8 SILICON BRONZE SPLIT LOCK WASHER

$0.04087/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$0.04087/EA
9200	$0.03828/EA
36770	$0.03409/EA
147060	$0.02259/EA

#10

0.2000

0.3340

0.0470

WLSB 10

In Stock

$0.08512/EA

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#10 SILICON BRONZE SPLIT LOCK WASHER

$0.08512/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$0.08512/EA
6390	$0.07975/EA
25550	$0.07102/EA
102180	$0.04706/EA

#12

0.2270

0.3770

0.0560

WLSB 12

In Stock

$0.07511/EA

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#12 SILICON BRONZE SPLIT LOCK WASHER

$0.07511/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$0.07511/EA
4180	$0.07037/EA
16710	$0.06267/EA
66840	$0.04153/EA

1/4

0.2600

0.4870

0.0620

WLSB025

In Stock

$0.18181/EA

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1/4 SILICON BRONZE SPLIT LOCK WASHER

$0.18181/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$0.18181/EA
1960	$0.17033/EA
7830	$0.15169/EA
31290	$0.10052/EA

5/16

0.3220

0.5830

0.0780

WLSB031

In Stock

$0.23833/EA

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5/16 SILICON BRONZE SPLIT LOCK WASHER

$0.23833/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$0.23833/EA
1140	$0.22339/EA
4530	$0.19863/EA
18120	$0.13236/EA

3/8

0.3850

0.6800

0.0940

WLSB037

In Stock

$0.39856/EA

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3/8 SILICON BRONZE SPLIT LOCK WASHER

$0.39856/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$0.39856/EA
1540	$0.37398/EA
6130	$0.33183/EA
27580	$0.22281/EA

7/16

0.4500

0.7760

0.1090

WLSB043

In Stock

$0.71227/EA

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7/16 SILICON BRONZE SPLIT LOCK WASHER

$0.71227/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$0.71227/EA
980	$0.66973/EA
3920	$0.59199/EA
17610	$0.40553/EA

1/2

0.5120

0.8690

0.1250

WLSB050

In Stock

$0.59919/EA

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1/2 SILICON BRONZE SPLIT LOCK WASHER

$0.59919/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$0.59919/EA
710	$0.5638/EA
2830	$0.49818/EA
12730	$0.34322/EA

5/8

0.6410

1.0730

0.1560

WLSB062

In Stock

$1.23924/EA

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5/8 SILICON BRONZE SPLIT LOCK WASHER

$1.23924/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$1.23924/EA
390	$1.16724/EA
1540	$1.02993/EA
6900	$0.71507/EA

3/4

0.7660

1.2650

0.1880

WLSB075

In Stock

$1.80779/EA

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3/4 SILICON BRONZE SPLIT LOCK WASHER

$1.80779/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$1.80779/EA
230	$1.70402/EA
920	$1.50315/EA
4140	$1.05177/EA

Silicon Bronze Split Lock Washer

Technical Data

Governing Standards

Governing StandardsSplit Lock Washer

Dimensional Specifications

Dimensional SpecificationsSplit Lock Washer

Diameter

Thickness

Outside Diameter

Inside Diameter

#4 SILICON BRONZE SPLIT LOCK WASHER

#6 SILICON BRONZE SPLIT LOCK WASHER

#8 SILICON BRONZE SPLIT LOCK WASHER

#10 SILICON BRONZE SPLIT LOCK WASHER

#12 SILICON BRONZE SPLIT LOCK WASHER

1/4 SILICON BRONZE SPLIT LOCK WASHER

5/16 SILICON BRONZE SPLIT LOCK WASHER

3/8 SILICON BRONZE SPLIT LOCK WASHER

7/16 SILICON BRONZE SPLIT LOCK WASHER

1/2 SILICON BRONZE SPLIT LOCK WASHER

5/8 SILICON BRONZE SPLIT LOCK WASHER

3/4 SILICON BRONZE SPLIT LOCK WASHER