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ISO 7379 Shoulder Screws, Steel, blackened

Shoulder Screws Steel blackened ISO 7379 thumbnail

Shoulder Screws Steel blackened ISO 7379 sketch

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d₁ f9	d₂	l₁ +0,25															d₃	l₂	l₃	A/F

4	M 3	4	5	6	8	10	12	16	20	25	30	-	-	-	-	-	7	7	3	2
5	M 4	5	6	8	10	12	16	20	25	30	40	-	-	-	-	-	9	8	4	2,5
6	M 5	10	12	16	20	25	30	35	40	45	50	55	60	65	70	80	10	9,5	4,5	3
8	M 6	16	20	25	30	35	40	45	50	55	60	65	70	80	90	100	13	11	5,5	4
10	M 8	16	20	25	30	35	40	45	50	55	60	65	70	80	90	100	16	13	7	5
12	M 10	16	20	25	30	35	40	45	50	55	60	65	70	80	90	100	18	16	9 -1	6
16	M 12	25	30	35	40	45	50	55	60	65	70	80	90	100	-	-	24	18	11	8 -1
20	M 16	30	35	40	45	50	55	60	65	70	80	90	100	-	-	-	30	22	14	10
24	M 20	50	55	60	65	70	80	90	100	-	-	-	-	-	-	-	36	27	16	12

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Specification

Steel

Property class 12.9
Blackened
Adapter dimension d₁ ground

ISO Fundamental Tolerances

Strength Values of Screws

RoHS

Information

Shoulder screws ISO 7379 are cost-saving construction elements for a wide variety of different uses.

The maximum tightening torque must not be defined by property class 12.9, it is instead limited by the relatively small bearing points (shoulders) and by the recesses at the transition point from d₁ to d₂ and d₁ to d₃.

The ISO standard sheet allows for screws with or without knurled head.

Standard deviation:
- no information about the concentricity 2 IT 13 and 2 IT 10
- no marking of the property class
- the official ISO standard sheet has the following dimensions for d₁ - d₂: 6,5-M5 / 13-M10 / 25-M20
- the dimensions 4-M3 and 5-M4 are not included in the official ISO standard sheet

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