StarDrive GPR CS
Underhead fins for optimal countersinking in timber
Countersunk
Ø 4.0 x 30 to 70 mm
Ø 4.5 x 50 to 80 mm
Ø 5.0 x 50 to 120 mm
Ø 6.0 x 60 to 300 mm
Ø 8.0 x 80 to 400 mm
Ø 10.0 x 80 to 400 mm
Features
Lower screw-in resistance
- The friction part reduces the screw-in resistance by reaming the wood around the shaft
Fast screwing processes
- Coarse thread including patented follower thread, rolled out to the tip
- Low screw-in torque
No pre-drilling necessary
- Patented follower thread tip
- Ensures that screw bites quickly with low splitting
Surface
galvanised blue
- Passivation, blue
- Cr[VI] free
- Anti-friction coating
Applications StarDrive GPR
Doubling Rafters: Doubling for reinforcement is usually done on the top or side of the rafter.
Rafters: Partial thread screws transfer the wind suction load and shear forces to the substructure through the screw heads.
CLT walls and ceilings: Cross-Laminated-Timber (CLT) - ceiling panel screwed to the walls with StarDrive GPR screws. Schmid screws are approved for all applications in side and end wood (0° and 90°) as well as CLT side faces and narrow edges.
Corner and wall screw connections are pulled tightly together and securely screwed with StarDrive GPR.
Facade and on-roof rafter insulation: For new timber construction or thermal renovation of buildings
- Lathes are fixed using countersunk screws at 90° to resist wind suction
- Screws arranged under an angel (mostly 60°) for securing against shear forces
- These screws application is fully covered by the technical assessment (ETA)
