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Compressible-Washer-Type Diredt Tension Indicators for Use with Structual Fasteners，Inch Series

ASTM F 959 - 2017 (a)

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Nominal Diameter
d

1/2

5/8

5/8
a ^③

3/4

7/8

1-1/8

1-1/4

1-3/8

1-1/2

d	min
d	max
d₁	Protrusion Tangential Diameter (max)
d₂	min【325】
	max【325】
	min【490】
	max【490】
n	Number of Protrusions 【325】
n	Number of Protrusions 【490】
h	min【325】
h	min【490】
H	max【325】
H	max【490】

0.523	0.654	0.654	0.786	0.917	1.048	1.179	1.311	1.442	1.573
0.527	0.658	0.658	0.790	0.921	1.052	1.183	1.315	1.446	1.577
0.788	0.956	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	1.355	1.730	1.980	2.230	2.480	2.730	2.980	3.230
1.375	1.625	1.375	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	4	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	0.126	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	0.220	0.240	0.260	0.270	0.280	0.280	0.280	0.280

①,【325】Type 325——for use with Specification A 325 bolts.
②,【490】Type 490——for use with Specification A 490 bolts.
③,Selection
④,Material and Properties shall conform to the requirement of ASTM F959

Alternative history

ASTM F 959 - 2005(a) ASTM F 959 - 2017

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