ANSI/ASME B 18.21.1 - 2009 Dimensions of Regular Helical Spring-Lock Washers [Table 1] (SAE J403, J411, J405, J404, ASTM B211, B159, B99, QQ-N-286)


Unit: inch
Screw Thread
d
2# 3# 4# 5# 6# 8# 10# 12# 1/4 5/16 3/8 7/16 1/2
d Nominal Size
max
min
dc max
h min
n min
n1 min
0.0860 0.0990 0.1120 0.1250 0.1380 0.1640 0.1900 0.2160 0.2500 0.3125 0.3750 0.4375 0.5000
0.094 0.107 0.120 0.133 0.148 0.174 0.200 0.227 0.260 0.322 0.385 0.450 0.512
0.088 0.101 0.114 0.127 0.141 0.167 0.193 0.220 0.252 0.314 0.377 0.440 0.502
0.172 0.195 0.209 0.236 0.250 0.293 0.334 0.377 0.487 0.583 0.680 0.776 0.869
0.020 0.025 0.025 0.031 0.031 0.040 0.047 0.056 0.062 0.078 0.094 0.109 0.125
0.035 0.040 0.040 0.047 0.047 0.055 0.062 0.070 0.109 0.125 0.141 0.156 0.171
0.024 0.028 0.028 0.033 0.033 0.038 0.043 0.049 0.076 0.087 0.099 0.109 0.120
Screw Thread
d
9/16 5/8 11/16 3/4 13/16 7/8 15/16 1 1-1/16 1-1/8 1-3/16 1-1/4 1-5/16
d Nominal Size
max
min
dc max
h min
n min
n1 min
0.5625 0.6250 0.6875 0.7500 0.8125 0.8750 0.9375 1.0000 1.0625 1.1250 1.1875 1.2500 1.3125
0.574 0.641 0.704 0.766 0.832 0.894 0.958 1.024 1.087 1.153 1.217 1.280 1.344
0.564 0.628 0.691 0.753 0.816 0.878 0.941 1.003 1.066 1.129 1.192 1.254 1.317
0.965 1.073 1.170 1.265 1.363 1.459 1.556 1.656 1.751 1.847 1.943 2.036 2.133
0.141 0.156 0.172 0.188 0.203 0.219 0.234 0.250 0.266 0.281 0.297 0.312 0.328
0.188 0.203 0.219 0.234 0.250 0.266 0.281 0.297 0.312 0.328 0.344 0.359 0.375
0.132 0.142 0.153 0.164 0.175 0.186 0.197 0.208 0.218 0.230 0.241 0.251 0.262
Screw Thread
d
1-3/8 1-7/16 1-1/2 1-5/8 1-3/4 1-7/8 2 2-1/4 2-1/2 2-3/4 3
d Nominal Size
max
min
dc max
h min
n min
n1 min
1.3750 1.4375 1.5000 1.6250 1.7500 1.8750 2.0000 2.2500 2.5000 2.7500 3.0000
1.408 1.472 1.534 1.663 1.789 1.914 2.039 2.293 2.543 2.793 3.043
1.379 1.442 1.504 1.633 1.758 1.883 2.008 2.262 2.512 2.762 3.012
2.219 2.324 2.419 2.553 2.679 2.811 2.936 3.221 3.471 3.824 4.074
0.344 0.359 0.375 0.389 0.389 0.422 0.422 0.440 0.440 0.458 0.458
0.391 0.406 0.422 0.424 0.424 0.427 0.427 0.442 0.442 0.491 0.491
0.274 0.284 0.295 0.297 0.297 0.299 0.299 0.309 0.309 0.344 0.344
Alternative history
Similar Standards
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High-collar helical spring lock washers [Table 4] (SAE J403, J411, J405, J404, ASTM B211, B159, B99, QQ-N-286)
38 米制弹簧垫圈 [Table 2] (SAE J403, J411, J404, J405, ASTM B211, B159, B99, QQ-N-286) [ASME]
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