
Suppliers of Welding screws
This product is regulated by the following standards:
Technical data
Welding screws

This product is regulated by the following standards:
Standard DIN 34817
Welding screws
This standard specifies dimensions and technical delivery conditions from M5 to M10 and M12 x 1,5 and M14 x 1,5 weld screws, of product grade A and used for resistance welding.

Dimensions in mm - source DIN 34817 |
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Publication date: 04/2017 Supercedes 04/2001 | ||||||||||||
d thread size | P | k nom | dk nom=max | a mx | i max | i min | h max=nom | d t max | dt min | f nom | e nom | ds min |
M 5 | 0.8 | 2 | 10 | 2.4 | 0.6 | 0.2 | 0.8 | 8.21 | 7.85 | 3.5 | 1.5 | 4.82 |
M 6 | 1 | 2.5 | 12 | 2.8 | 0.6 | 0.2 | 0.8 | 10.11 | 9.75 | 4 | 1.5 | 5.82 |
M 8 | 1.25 | 3 | 16 | 3.7 | 0.6 | 0.2 | 1.2 | 13.68 | 13.25 | 5.5 | 2 | 7.78 |
M 10 | 1.5 | 4 | 20 | 4.4 | 0.6 | 0.2 | 1.4 | 17.58 | 17.15 | 7.5 | 2 | 9.78 |
M 12 | 1.5 | 4.8 | 24 | 4.6 | 0.6 | 0.2 | 1.6 | 21.67 | 21.15 | 9 | 2 | 11.73 |
M 14 | 1.5 | 5.6 | 28 | 4.6 | 0.8 | 0.2 | 1.6 | 25.72 | 25.2 | 11 | 2.5 | 13.73 |
Dimensions in mm - source DIN 34817 |
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Publication date: 04/2001 | |||||||||||||
d thread size | P | b | k nom | dk nom=max | a mx | i max | i min | h max=nom | d t max | dt min | f nom | e nom | ds min |
M 5 | 0.8 | 35 | 2 | 10 | 2.4 | 0.6 | 0.2 | 0.8 | 8.21 | 7.85 | 3.5 | 1.5 | 4.82 |
M 6 | 1 | 37 | 2.5 | 12 | 2.8 | 0.6 | 0.2 | 0.8 | 10.11 | 9.75 | 4 | 1.5 | 5.82 |
M 8 | 1.25 | 41 | 3 | 16 | 3.7 | 0.6 | 0.2 | 1.2 | 13.68 | 13.25 | 5.5 | 2 | 7.78 |
M 10 | 1.5 | 45 | 4 | 20 | 4.4 | 0.6 | 0.2 | 1.4 | 17.58 | 17.15 | 7.5 | 2 | 9.78 |
M 12 | 1.75 | 49 | 4.8 | 24 | 4.6 | 0.6 | 0.2 | 1.6 | 21.67 | 21.15 | 9 | 2 | 11.73 |
M 14 | 2 | 53 | 5.6 | 28 | 4.6 | 0.8 | 0.3 | 1.6 | 25.72 | 25.2 | 11 | 2.5 | 13.73 |
Details
Welding screws

Dimensions in mm - source DIN 34817 |
|||||||||||||
Publication date: 04/2001 | |||||||||||||
d thread size | P | b | k nom | dk nom=max | a mx | i max | i min | h max=nom | d t max | dt min | f nom | e nom | ds min |
M 5 | 0.8 | 35 | 2 | 10 | 2.4 | 0.6 | 0.2 | 0.8 | 8.21 | 7.85 | 3.5 | 1.5 | 4.82 |
M 6 | 1 | 37 | 2.5 | 12 | 2.8 | 0.6 | 0.2 | 0.8 | 10.11 | 9.75 | 4 | 1.5 | 5.82 |
M 8 | 1.25 | 41 | 3 | 16 | 3.7 | 0.6 | 0.2 | 1.2 | 13.68 | 13.25 | 5.5 | 2 | 7.78 |
M 10 | 1.5 | 45 | 4 | 20 | 4.4 | 0.6 | 0.2 | 1.4 | 17.58 | 17.15 | 7.5 | 2 | 9.78 |
M 12 | 1.75 | 49 | 4.8 | 24 | 4.6 | 0.6 | 0.2 | 1.6 | 21.67 | 21.15 | 9 | 2 | 11.73 |
M 14 | 2 | 53 | 5.6 | 28 | 4.6 | 0.8 | 0.3 | 1.6 | 25.72 | 25.2 | 11 | 2.5 | 13.73 |
Full list of Suppliers of Welding screws

Production of special items following the customer drawing: special screws, rivets, half bored rivets, pins, spacers and sleeves.
Materials: iron, stainless steel, copper, brass, aluminium with heat and galvanic treatments.

Leader in Italy for the production and distribution of fixing systems and tools for sheet metal working
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Importer of fasteners, focusing on sheet metal parts, self clinching fasteners, rivet nuts, blind rivets, welding fasteners etc.
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M5 to M22 with maximum length of 220 mm, grades from 3.6 to 12.9
Distributor of self clinching inserts, rivet nuts, blind rivets, lock bolts and welding fasteners
Manufacturer of fastening systems, blind rivets, insert nuts, welding pins, riveters and hand tools
Manufacturer and supplier of welding screws and nuts, sheet metal fasteners, inserts and cage nuts
Leading company in the field of welding pins, studs and anchors.
Specialized suppliers of:
- Studs for arc stud welding.
- Anchors for ceramic fibres and refractory materials.
- Pins for insulation
- Welding machines
Our strong points: wide experience, high quality, competence and reliability.
Manufacturer specialized in welding pins and screws as per DIN 13918 and DIN 34817 and as per drawing. Self clinching screws and thumb screws.