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Compressible-washer-type Diredt Tension Indicators for Use with Structual Fasteners

ASTM F 959 - 2005 (a)

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Download CAD Model^*

^*Models with different eras.

For thread diameter

1/2

5/8

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	0.786	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,【325】Type 325——for use with Specification A 325 bolts.
②,【490】Type 490——for use with Specification A 490 bolts.

Alternative history

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

Alternative history

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

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