Technical data for Cross recessed countersunk flat head wood screws

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This product is regulated by the following standards:

Standard DIN 7997

Cross-recessed countersunk head wood screws

This standard (DIN 7997) specifies the characteristics of cross-recessed countersunk head wood screws for thread diameters between 2 mm to 8 mm which are used outside areas requiring approval, such as timber structures for load-bearing purposes.

Cross recessed countersunk flat head wood screws

Dimensions in mm - source DIN 7997 Publication date: 12/2016 Supersedes DIN 7997: 12/2010
thread size	2	2.5	3.0	3.5	4.0	4.5	5.0	5.5	6.0	7	8
ds min	1.6	2.1	2.6	3.02	3.52	4.02	4.52	5.02	5.52	6.42	7.42
dk nom	3.8	4.7	5.6	6.5	7.5	8.3	9.2	10.2	11	12.5	14
k max.
Cross recess nr
m (type H)
m (Type Z)

Dimensions in mm - source DIN 7997 Publication date: 12/2010 Supersedes DIN 7997: 12/1984
thread size	2	2.5	3.0	3.5	4.0	4.5	5.0	5.5	6.0	7	8
ds min	1.6	2.1	2.6	3.02	3.52	4.02	4.52	5.02	5.52	6.42	7.42
dk nom	3.8	4.7	5.6	6.5	7.5	8.3	9.2	10.2	11	12.5	14
k max.
Cross recess nr
m (type H)
m (Type Z)

DIN 7997 - ≈ weigth in kg x1000 pcs, (ρ=7,85 kg/dm³) - commercial items
d thread size	2	2.5	3	3.5	4	4.5	5	5.5	6	7	8
nominal length l
10		0.37	0.6	0.79
12
16
20
25
30
35
40
45
50
60
70
80

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 Cross recessed countersunk flat head wood screws

This product is regulated by the following standards:

Standard DIN 7997

Standard NF E25-601

Cross recessed countersunk flat head wood screws

Suppliers of Cross recessed countersunk flat head wood screws

Distributor of hex lag screws, chipboard screws, carpentry screws, drywall screws, concrete screws, PVC windows screws, dome and euro screws, metric screws, nuts/washers/bolts/threaded rods, self-tapping screws, self-drilling screws, stainless steel screws.

Manufacturer of self drilling, bi-metal, thread forming, timber and drywall screws

Manufacturer of chipboard screws, self tapping screws, wood screws, self drilling screws, drywall screws and special fasteners

Manufacturer of machine screws, self tapping screws and screws for plastic HI-LO. Norms DIN, PN and AN

Distributor of chipboard screws, PVC screws, window screws and frame anchors.

Distributor of fasteners and hardware, specialized in wood carpentry

Distributor of anchors, hand tools, woodscrews and rivets

Manufacturer of trilobular screws, screws for plastic, screw driver bits and fixings

Manufacturer of concrete screws, drywall screws and wood screws

Importer and exporter of machine screws, self tapping, self drilling and wood screws. Metrich and inch series.

Dimensions in mm - source NF e25-601 Publication date: 05/1984
thread size	2.5	3.0	3.5	4.0	4.5	5.0	5.5	6.0
P	1.1	1.35	1.6	1.8	2	2.2	2.4	2.6
ds min	2.1	2.6	3.02	3.52	4.02	4.52	5.02	5.52
dk nom
k max.
Cross recess nr
m (Type Z)