Direct screw connection in metal
Thread-forming screws for direct screwing into metal reduce assembly costs and improve the safety and quality of the connection.
WSH thread-forming screws are a tool and connecting element in one. In one operation, they form their matching counter-thread without chipping when screwed in. This saves tools and working time when producing the nut thread. Additional costs such as checking the nut thread with the gauge, cleaning, deburring, removing chips and rework are eliminated. Sits without play in the nut thread it has formed, thus acting self-locking and offering security against spontaneous loosening under dynamic load. Creates a positive connection over the entire screw-in length, covering the flanks of the screw and nut thread. Together with the edge zone of the nut thread, which is cold-hardened by chipless forming, this means high strength and high tear-out resistance.
Schmierung von gewindefurchenden Schrauben:
Zur Funktionserfüllung einer gewindefurchenden Schraube werden diese in der Regel mit einem geeigneten Schmierungssystem beschichtet.
WSH SPIRALFORM / WSH SPIRALFORM PLUS
WSH TRILO
WSH TRILO PLUS
WSH VR / WSH VRI
WSH DBS 60
High-strength tempered screws of strength class 10.9 according to DIN 267-30 are used in joining parts made of ductile materials such as aluminum, copper and their alloys with a hardness of max. 130 HV10 or 124 HB. Case-hardened screws according to DIN 7500 are used in joining parts made of alloyed steels up to approx. 600 N/mm².
High-strength tempered screws of strength class 10.9 with an additional inductively hardened groove area are used in joining parts made of alloyed steels. When there are higher demands on the durability of the connection and oscillating stress, instead of case-hardened screws.
We also recommend that you contact our product development department to give us the opportunity to adapt the respective design to your specific application conditions.
Our application engineers will help you optimise the screw connection, paying particular attention to the surface condition of the screw and component as well as the material and geometric properties of the component.
