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ASTM F959 F959M

ASME B 18.2.6 - 2019 

Compressible Washer-Type Direct Tension Indicators

(ASTM F959/F959M)

 

                   

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
h min
H max
dc Type 325-1,325-3 min
max
Type 490-1,490-3 min
max
0.523 0.651 0.783 0.914 1.043 1.174 1.306 1.437 1.568
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
0.104 0.126 0.126 0.142 0.158 0.158 0.158 0.158 0.158
0.180 0.220 0.240 0.260 0.270 0.280 0.280 0.280 0.280
1.031 1.281 1.437 1.718 1.937 2.187 2.437 2.687 2.937
1.187 1.375 1.625 1.875 2.000 2.250 2.500 2.750 3.000
1.031 1.281 1.437 1.718 1.937 2.187 2.437 2.687 2.937
1.375 1.625 1.750 2.000 2.250 2.500 2.750 3.000 3.250
①,Type 325-1—DTIs for use with Specification F3125 Grade A325 Type 1 bolts or Grade F1852 assemblies.
Type 325–3—DTIs for use with Specification F3125 Grade A325 Type 3 bolts or Grade F1852 Type 3 assemblies.
（ASTM F959/F959M − 17a）
②,Type 490–1—DTIs for use with Specification F3125 Grade A490 Type 1 bolts or Grade F2280 assemblies.
Type 490–3—DTIs for use with Specification F3125 Grade A490 Type 3 bolts Grade F2280 Type 3 assemblies.
（ASTM F959/F959M − 17a）
③,Material and Properties shall conform to the requirement of ASTM F959
 
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