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 and distributor of bolts M5 - M24, nuts M4 - M24 and threaded rods M6 – M48

Manufacturing through cold forging technology of steel products, from Ø6 to Ø33 and lengths proportional to the Ø from I = 10mm to I = 240mm Tensile grades: 4.6 - 5.6 - 8.8 - 9.8 - 10.9 - 12.9 - B7 - B7M

Producer of Hexagon, machine and welding screws in low and high tensile steel. Producer of special screws on customer requirement.

Manufacturer specialized in dowel pins and flanged screws, with 12 points as well. Bot metric and imperial sizes.

Manufacturer of standard and special fasteners, from M4 to M30, from 1/4" to 1-1/4". Lengths from 10 to 300mm and from 1/2" to 12".

Leader manufacturer of hexagon head screws for costruction and high tensile screws. Diameters from M12 to M36. Production plants in Korea, Vietnam and China

Manufacturer of screws, threaded studs and threaded rods in metric and inch sizes

Manufacturer of hex head and square head fasteners

Products in different product groups: Cleaning, Lubrication, Surface Treatment, Glues, Tapes, Electrical and Additives.

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