DIRECT SCREW CONNECTIONS
For plastics, light metals, duroplastics, thin sheets and thread-rolling screws.
In the case of direct screwing, the screw can be screwed directly into the corresponding receiving material. The special feature: Depending on the application, component and connecting element, the screw can also be inserted into the component without a pre-hole. A special thread geometry allows a thread to be created in the main body of the component to be screwed.
Make your assembly process faster, safer and more durable with versatile and cost-effective solutions. From us, you get:
- 100% compatibility with common formats
- Standardised variants
- individually manufactured direct screws on customer request
- excellent conditions starting from a very small quantity of 10,000 pieces
- Free (initial) samples including material certificate and test report for approval in advance
plastics (thermoplastic screws)
In practice, compounds made of thermoplastics often pose particular challenges in construction. Both assembly and load capacity are two key factors that often make the decisive difference. Here comes the NORM+TWIST thermoplastic screw
as the ideal combination for professional use
for use in the plastic sector!
Here are some of the advantages of thermoplastic screws in general:
- optimal connection of thermoplastics
- minimum radial tensions
- low thread forming moments
- effective elimination of the risk of relaxation
- Elimination of material damage
- exceptionally good manufacturing conditions
Take advantage of our options
In practice, we have already individually sampled, documented and subsequently produced a variety of customer-specific PT screws using production drawings at the customer's request. In addition, we also offer classic standard solutions, which we can deliver in a wide variety of dimensions with short delivery times.
light metals
Asymmetric — vibration-resistant — resilient
The NLS screw offers another solution variant; it is ideal for components made of light metal and technical plastics with high reinforcements of more than 30%!
The benefits at a glance:
- High protection against overturning
- Good vibration resistance
- No chip formation
- Improved assembly properties
- Hassle-free multiple assembly
- High tensile strength
- No risk of jamming thanks to the optimal core geometry
Duroplasts
The NDS screws were specially designed to meet the high requirements for detachable connections of duroplastic molding materials. Let yourself be convinced of the advantages of this screw.
Benefits of NDS:
- good long-term stability (vibration safety)
- favorable mounting properties (small screw-in torques, large tightening and releasing torques)
- cost-effective assembly
- Elimination of radial forces in the tube using an SDS cutting edge
- Interception of machined material due to special core geometry
thin sheets
As the trend towards lightweight steel sheet construction increases, the requirements for the fasteners used are also changing. Conventional sheet metal screws are not suitable for this purpose due to their limited force transmission and lack of security against unturning — they often fail. Connecting with inseparable elements, e.g. rivets, is not always possible or not intended.
In order to meet the special requirements for efficiency, durability of the connection and possible disassembly, we offer the self-forming NBS screw especially for thin steel sheets, depending on screw dimensions up to approx. 1.5 mm thick.
Due to the special thread geometry, this screw is able to form a thread through the material it displaces and screw itself into the thin sheet without chip formation. The previously required backings, clips or nuts to secure the connection are superfluous.
There are further advantages in applications in which complex screwdriver technology cannot be used for reasons of cost, weight or space or where thermal stress on the thin sheet must be avoided, e.g. in insulation foam ISO walls.
- Cost-effective and economical connections in thin sheet metal with very high durability and safety!
- High breakaway moments and vibration resistance
- no chip formation
- No hole misalignment due to production of the screw hole during screwing
thread forming end use
Here is a screw variant which corresponds to a trilobular thread-forming furrow screw. It allows direct screwing into cylindrical holes, sheet metal passages and cast holes. This metric screw can be used for applications without nut threads. We also call it NGF.
Benefits of NGF:
- high efficiency due to thread furrows and screwing in one operation
- no chip formation/contamination of the module
- Saving additional nuts, washers, etc.
- less planning costs for additional parts
- low assembly costs
- no interruption of the fiber flow in the screw-in part,
- Material solidification through cold forming
- Increased protection against loose rotation due to screwing without backlash
Benefit from our extensive delivery options for standardized connection parts as well as special parts according to drawings, which are tailored to your needs. Our team of experts will be happy to advise you and find the optimal solution for your needs. Contact us now to find out more and get a personalized quote.