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ASTM F959

ASME B 18.2.6 - 2006 

Compressible Washer-Type Direct Tension Indicators

(ASTM F959)

 

Nominal Diameter
d
1/2 5/8 3/4 7/8 1 1-1/8 1-1/4 1-3/8 1-1/2
d min
max
d1 Protrusion Tangential Diameter max
dc Type A325 min
max
Type A490 min
max
n Number of Protrusions Type A325
Type A490
h min Type A325
Type A490
H max Type A325
Type A490
0.523 0.654 0.786 0.917 1.048 1.179 1.311 1.442 1.573
0.527 0.658 0.790 0.921 1.052 1.183 1.315 1.446 1.577
0.788 0.956 1.125 1.294 1.463 1.631 1.800 1.969 2.138
1.167 1.355 1.605 1.855 1.980 2.230 2.480 2.730 2.980
1.187 1.375 1.625 1.875 2.000 2.250 2.500 2.750 3.000
1.355 1.605 1.730 1.980 2.230 2.480 2.730 2.980 3.230
1.375 1.625 1.750 2.000 2.250 2.500 2.750 3.000 3.250
4 4 5 5 6 6 7 7 8
5 5 6 6 7 7 8 8 9
0.104 0.126 0.126 0.142 0.158 0.158 0.158 0.158 0.158
0.104 0.126 0.142 0.158 0.158 0.158 0.158 0.158 0.158
0.180 0.220 0.230 0.240 0.270 0.270 0.270 0.270 0.270
0.180 0.220 0.240 0.260 0.270 0.280 0.280 0.280 0.280
①,Type A325——for use with Specification A 325 bolts.
②,ype A490——for use with Specification A 490 bolts.
③,Material and Properties shall conform to the requirement of ASTM F959
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