UNI 6591 | Fasten.it

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Dimensions in mm - source UNI 6951Withdrawn Publication date: 11-1978
Ø	P	dk max	dk min	k max	k min	t max	t min	n max	n min	Y form C	Y form F
ST 2.2	0.8	4.2	3.9	1.35	1.15	0.8	0.55	0.8	0.66	2	1.6
ST 2.9	1.1	5.6	5.3	1.75	1.5	1	0.75	1	0.86	2.6	2.1
ST 3.5
ST 3.9
ST 4.2
ST 4.8
ST 5.5
ST 6.3

UNI 6951 - ≈ weigth, in kg x1000 pcs, (ρ=7,85 kg/dm³) - commercial lengths
thread size	ST 2	ST 2.9	ST 3.5	ST 3.9	ST 4.2	ST 4.8	ST 5.5	ST 6.3
nominal length l
4.5	0.174
6.5
9.5
13
16
19
22
25
32
38

Reproduced by permission of DIN Deutsches Institut für Normung e. V. The definitive version for the implementation of this standard is the edition bearing the most recent date of issue, obtainable from Beuth Verlag GmbH, Burggrafenstraße 6, 10787 Berlin, Germany.
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Standard UNI 6591