Technical data for Hexagon flange bolts with or without knurled underhead heavy series

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This product is regulated by the following standards:

Standard DIN EN 1665

Equivalent standards

BS EN 1665

Hexagon flange bolts with or without knurled underhead heavy series

The standard (DIN EN 1665) specifies the characteristics of hexagon head fasteners with flange, with thread sizes from M5 up to M16 enclosed, heavy series, with property classes 8.8, 10.9 and A2-70.

Dimensions in mm - source DIN EN 1665
Publication date: 11/1998
d thread size	P	b (l<=125)	b (l>125<=200)	b (l>200)	c min	dk max.	k max	ds min	dr	e min.	s nom=/max.
M 5	0.8	16	-	-	1	11.8	5.8	4.82	≈ rolling dia.	8.71	8
M 6
M 8
M 10
M 12
M 14
M 16
M 20

DIN 1665 - commercial items
d thread size	M5	M6	M8	M10	M12	M14	M16	M20
nominal length l
25	X
30	X	X
35
40
45
50
55
60
65
70
80
90
100
110
120
130
140
150
160
180
200

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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Technical data for Hexagon flange bolts with or without knurled underhead heavy series

This product is regulated by the following standards:

Standard DIN EN 1665

Standard DIN 6921

Hexagon flange bolts with or without knurled underhead heavy series

Suppliers of Hexagon flange bolts with or without knurled underhead heavy series

Manufacturer of hexagon head screws, socket cap screws, high strength fasteners Annual capacity of 120,000 tons

Manufacturer of metric and inch size fasteners

Manufacturer of hex head and cap screws

Manufacturer of flanged nuts and screws, SEMS, Screws for plastics

Manufacturer of Hexagon head fasteners, flanged head screws, hammer head screws.Diameters M4÷M12. carbon iron and carbon steel

Manufacturer of special fasteners in 8.8, 10.9 and 12.9

Manufacturer of hexagon head screws, flanged screws and T-head bolts

Dimensions in mm - source DIN 6921 Withdrawn Publication date : 06/1983
d thread size	P	b (l<=125)	b (l>125<=200)	b (l>200)	ds min	c min	dk max.	k max	e min.	s nom=max
M 5	0.8	16	-	-	4.82	1	11.8	5.4	8.71	8
M 6	1	18	-	-	5.82	1.1	14.2	6.6	10.95	10
M 8
M 10
M 12
M 14
M 16
M 20

DIN 6921 1983 - ≈ weigth, in kg x1000 pcs, (ρ=7,85 kg/dm³) - commercial items
d thread size	M5	M6	M8	M10	M12	M14	M16
nominal length l
10	3.22
12	3.46	6.94	13.76	24.04
16	3.94	7.62	15.01	26.01
20
25
30
35
40
45
50
55
60
65
70
75
80
85
90
95
100
110
120
130
140
150

Hex head flanged screws with knurled underhead Sechskantschrauben mit Flansch mit Rändelschraube Unterkopf Viti a testa esagonale flangiata zigrinata
Dimensions in mm
d thread size	k	h	dk	s	nr. of Teeth
M 5	4.3	0.15	11.2	8	24
M 6
M 8
M 10
M 12
M 16