Nuts
The right nut for every connection
Fastenrath offers a wide range of weld nuts, flange nuts, lock nuts, hex nuts, square nuts, and cap nuts made of steel, stainless steel, or non-ferrous metals—available in virtually all thread types and sizes, as well as various surface coatings. We are also happy to manufacture custom nuts for you, such as combination nuts, press-fit nuts, rivet nuts, flanged nuts, round nuts, and rectangular nuts.
We produce approximately 1.1 billion nuts per year—that’s about 5 million nuts per day—which are installed in, among other things, the bodies, chassis, and engines of numerous passenger cars, trucks, two-wheelers, and agricultural and forestry machinery. Our nuts can also be found in everyday household items, such as washing machines and dishwashers, as well as other household and gardening appliances.
In order to ensure your complete satisfaction, we supply our weld nuts in a wide range of variants, always delivering consistently high quality.
Although weld nuts generally operate according to the same principle, there are significant differences in terms of ease of processing and strength.
Our products offer numerous advantages. They ensure reliable feedability and weldability in production processes and, if required, feature a centring spigot for self-positioning and protection from weld spatter.
In the weld nut segment, we manufacture:
• Square weld nuts DIN 928
• Hex weld nuts DIN 929
• Hex flange weld nuts DIN EN ISO 21670
• Round weld nuts
• Special designs to customer specifications
Hex flange weld nuts DIN EN ISO 21670
M5 – M16 (coarse thread)
M8 x 1 – M16 x 1,5 (fine thread)
Square weld nuts DIN 928
M4 – M16 (coarse thread)
M8 x 1 – M16 x 1,5 (fine thread)
7/16 – 20 UNF – 2B
Hex weld nuts DIN 929
M4 – M16 (coarse thread)
M8 x 1 – M16 x 1,5 (fine thread)
7/16 – 20 UNF – 2B
In the flange nut segment, we manufacture the following:
- Flange nut DIN EN 1661
- Flange nut DIN EN 14218
- Flanged hex nuts, 1.5d high, DIN 6331
- Special designs to customer specifications
Flange nut DIN EN 1661
M5 – M14 (coarse thread)
Flange nut DIN EN 14218
M8 x 1 – M14 x 1,5 (fine thread)
Flanged hex nuts, 1.5d high, DIN 6331
M6 – M12 (coarse thread)
Technical details:
Metric ISO thread: Coarse and fine threads (tolerance class 6H)
UN threads: UNC and UNF (tolerance class 2B)
Special threads on request
Design:
Product class A
Strength classes to DIN EN ISO 898-2:
DIN EN 1661 and DIN EN 14218: 8, 10 and 12
DIN 6331: 8 and 10
Special designs: 04, 05, 8, 10 and 12
Use our press-in nuts to create reliable connections without the need for additional welding processes. The nuts are extremely easy to install, with no risk of structural changes in the material caused by heat exposure during welding, for example. They also withstand high levels of torque and pull-out forces and are available for a range of sheet thicknesses, as well as offering a high level of safety even in very compact designs.
Thanks to these properties, our products are used wherever durable and reliable connections in sheet metal are required, for example in the manufacture of vehicle components and other sheet metal parts. Closed press-in nuts also prevent the ingress of dirt and water.
In the press-in nut segment, we manufacture the following:
- Hex press-in nuts FN 1.225
- Special designs to customer specifications
Hex press-in nut FN 1.225
M5 – M12 (coarse thread)
M8 x 1, M10 x 1 und M12 x 1,5 (fine thread)
7/16 – 20 UNF
Technical details:
Metric ISO thread: Coarse and fine threads (tolerance class 6G)
UN threads: UNC and UNF (tolerance class 2B)
Special threads on request
Design:
Product class A
Strength classes 8 and 10 to DIN EN ISO 898-2
Avoid unpleasant surprises when it comes to safety. Standard nuts can loosen or even come off completely due to external influences such as continuous vibration. Lock nuts have been developed to counter this.
They are a reliable locking solution against unintentional loosening and loss – without the need for additional components or any modification to the bolt itself. Applications for our lock nuts include exhaust systems, chassis components and engine parts.
In the FASTENLOK® lock nuts product segment, we manufacture:
- FASTENLOK® flange nuts DIN EN 1664
- FASTENLOK® flange nuts DIN EN 1667
- FASTENLOK® hex nuts type 2 DIN EN ISO 7042
- FASTENLOK® hex nuts type 1 DIN EN ISO 7719
- FASTENLOK® hex nuts type 2 DIN EN ISO 10513
- Special designs to customer specifications
FASTENLOK® flange nuts DIN EN 1664
M5 – M14 (coarse thread)
FASTENLOK® flange nuts DIN EN 1667
M8x1 – M14x1,5 (fine thread)
FASTENLOK® hex nuts type 2 DIN EN ISO 7042
M5 – M16 (coarse thread)
FASTENLOK® hex nuts type 1 DIN EN ISO 7719
M5 – M16 (coarse thread)
FASTENLOK® hex nuts type 2 DIN EN ISO 10513
M8 x 1 – M16 x 1,5 (fine thread)
Technical details:
Metric ISO thread: Coarse and fine threads (tolerance class 6H)
Special threads on request
Design:
Product class A
Strength classes to DIN EN ISO 898-2:
DIN EN 1664, DIN EN ISO 7042 and DIN EN ISO 10513: 8, 10 and 12
DIN EN 1667 and DIN EN ISO 7719: 8 and 10
Special designs: 04, 05, 8, 10 and 12
In the hex nut segment, we manufacture the following:
- Hex nuts, type 1 DIN EN ISO 4032
- Hex nuts, type 2 DIN EN ISO 4033
- Hex nuts DIN EN ISO 4034
- Hex nuts, low type (with chamfer) DIN EN ISO 4035
- Hex nuts, low type (without chamfer) DIN EN ISO 4036
- Hex nuts, type 1 DIN EN ISO 8673
- Hex nuts, type 2 DIN EN ISO 8674
- Low hex nuts (with chamfer) DIN EN ISO 8675
- Hex nuts with reduced width across flats DIN 70615
- Thin hex nuts with reduced width across flats DIN 70616
- Thin nuts with reduced widths across flats (series 2)
- Special designs to customer specifications
Hex nuts, type 2 DIN EN ISO 4033
M5 – M16 (coarse thread)
Hex nuts DIN EN ISO 4034
M5 – M16 (coarse thread)
Hex nuts, low type (with chamfer) DIN EN ISO 4035
M4 – M16 (coarse thread)
Hex nuts, low type (without chamfer) DIN EN ISO 4036
M2 – M10 (coarse thread)
Hex nuts, type 1 DIN EN ISO 8673
M8 x 1 – M16 x 1,5 (fine thread)
Hex nuts, type 2 DIN EN ISO 8674
M8 x 1 – M16 x 1,5 (fine thread)
Low hex nuts (with chamfer) DIN EN ISO 8675
M8 x 1 – M16 x 1,5 (fine thread)
Hex nuts with reduced width across flats DIN 70615
M10 (coarse thread) und M10 x 1 (fine thread)
Thin hex nuts with reduced width across flats DIN 70616
M10 (coarse thread) und M10 x 1 (fine thread)
Thin nuts with reduced widths across flats (series 2)
M12 x 1,5 – M22 x 1,5 (fine thread)
Technical details:
Metric ISO thread: Coarse and fine threads (tolerance class 6H)
UN threads: UNC and UNF (tolerance class 2B)
Special threads on request
Design:
Product classes A and B
Product class C (DIN EN ISO 4034)
Property classes in accordance with DIN EN ISO 898-2:
DIN EN ISO 4032, 8673 and DIN 70615: 8 and 10
DIN EN ISO 8674: 8 and 12
DIN EN ISO 4033: 8, 10 and 12
DIN EN ISO 4034: 5
DIN EN ISO 4035, 8675 and DIN 70616: 04 and 05
Special designs: 04, 05, 8, 10 and 12
Hardness classes in accordance with DIN 267-24:
DIN EN ISO 4036 and DIN 80705: 14H
Rely on the tradition and proven quality of our square nuts. They are the product our company has successfully manufactured and distributed ever since its founding over 100 years ago. Square nuts have a key role to play in fastening technology. They are used across a wide range of industries in profiles, guide rails and rail systems.
In lorries and passenger cars they secure front-end and door modules as well as decorative boot rails. Square nuts are also used to fasten mounting rails in mechanical engineering, electrical engineering, the solar industry, automotive engineering, sanitary systems and exhibition construction.
In the square and rectangular nuts product segment, we manufacture the following:
- Square nuts DIN 557
- Square nuts, low type DIN 562
- Sonderformen nach Kundenwunsch
Square nuts DIN 557
M5 – M12 (cold formed)
Square nuts, low type DIN 562
M2 – M10 (stamped version)
Technical details:
Metric ISO coarse and fine threads (tolerance class 6H)
Special thread types on request
Design:
Product class C (DIN 557)
Product class B (DIN 562)
Property classes in accordance with DIN EN ISO 898-2:
DIN 557: 5 and 8
Special designs: 04, 05, 8, 10 and 12
Hardness classes in accordance with DIN 267-24:
DIN 562: 14H
