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

ASTM F 959M - 2017 (a)

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For thread diameter

M16

M20

M22

M24

M27

M30

M36

d	min
d	max
d₁	Protrusion Tangential Diameter (max)
d₂	min【8.8】
	max【8.8】
	min【10.9】
	max【10.9】
n	Number of Protrusions 【8.8】
n	Number of Protrusions【10.9】
h	min【8.8】
h	min【10.9】
H	max【8.8】
H	max【10.9】

16.75	20.95	23.05	25.15	28.30	31.45	37.75
16.85	21.05	23.15	25.25	28.40	31.55	37.85
25.0	29.0	33.0	38.0	43.0	46.5	56.0
35.20	44.00	48.40	52.80	59.40	66.00	79.20
36.80	46.00	50.60	55.20	62.10	69.00	82.80
35.20	44.00	48.40	52.80	59.40	66.00	79.20
36.80	46.00	50.60	55.20	62.10	69.00	82.80
4	5	5	6	6	7	8
4	6	6	7	7	8	9
3.2	3.6	3.6	4.0	4.0	4.0	4.8
3.6	3.6	4.0	4.0	4.0	4.8	4.8
5.5	6.0	6.0	7.0	7.0	7.0	7.5
6.0	6.0	7.0	7.0	7.0	7.5	7.5

①,【8.8】Type 8.8——for use with Specification A325M bolts.
②,【10.8】Type 10.9——for use with Specification A490 bolts.
③,Material and Properties shall conform to the requirement of ASTM F959M

Alternative history

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

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