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Thread-rolling screw
DIN 7500-1 countersunk head, case-hardened (-O-) galvanised steel, blue passivated (A2K)
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Variants
Thread-rolling screws form a nut thread in cast blind holes, transition points, drilled, lasered and punched sheet metal parts. Unlike thread cutting, with thread-rolling, the structure of the material is not interrupted in the counter thread but rather displaced and strain-hardened.
Eliminates thread-cutting
Saves on costs
Non-cutting thread formation
TRILOBULAR shape of the screw combined with the radius profile of the thread flanks
- Low tapping torque with greater flank coverage by the thread
High clamping force
Large thread flank coverage
High load-bearing capacity
Strain-hardened counter thread (nut thread)
Greater load-bearing capacity
Play-free and self-locking seating of the thread
- Reduced likelihood of screw working loose
Protection against loss
The formed thread constitutes a "metric" standard thread
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