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3/8 Stainless Steel Internal Tooth Lock Washer

Selected Stainless Steel Internal Tooth Lock WasherSS Internal Tooth Lock Washer
Stainless Steel Internal Tooth Lock WasherSS Internal Tooth Lock Washer

Product Specification

Diameter
3/8
Grade
18-8 Stainless Steel, 410 Stainless Steel, 304 Stainless Steel
Inside Diameter
0.3840
Outside Diameter
0.6875
Thickness
0.0320
Material
Stainless Steel
Finish
None
Country of Origin
Unrestricted Origin
Weight
0.001698

Governing Standards

ASME B18.21.1 Covers the dimensional requirements, physical properties, and related test methods for helical spring-lock washers (#0 through 3 inches), tooth-lock washers (#2 through 1 ¼ inches), and plain washers (#0 through 3 inches).

Dimensional Specifications

Internal Tooth Lock Washer dimensions
Per ASME B18.21.1-2009
Size Nominal A B C
Inside
Diameter		 Outside
Diameter		 Mean Section
Thickness
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
1 1/8 1.1250 1.1920 1.1440 1.8300 1.7990 0.0670 0.0590
1 1/4 1.2500 1.3250 1.2750 1.9750 1.9210 0.0670 0.0590
  1. All dimensions are in inches.