Specifically designed for the mechanical fastening of rock wool insulation layers and TPO/PVC waterproof membranes in single-ply roofing systems.
Forms a telescopic fastener unit with SW screws, preventing screw tips from penetrating the PVC/TPO waterproofing membrane
Dome-Shaped Disc Design: Mushroom-shaped disc distributes stress evenly and provides enhanced rigidity to resist bending
Eight-Grip Claw Structure: Eight claws firmly engage with the membrane's reinforcement layer, significantly increasing friction and preventing slippage
Universal Membrane & Insulation Fixing: Compatible with SW screws for both membrane and insulation attachment, offering flexible on-site configuration
The sleeve-screw combination effectively blocks heat transfer through metal screws, preventing condensation formation
Item | Detail |
Disc Diameter | 47.5mm |
Sleeve Diameter | 15mm |
Sleeve Length | 35/45/55/65/85/105/115/135/165/180mm |
Sleeve Material | Modified PP (Polypropylene) |
Design Load | 600N |
Compliance Standard | JG/T 576-2021 |
Application Scenario | For fixing rock wool insulation layers and P-class waterproof membranes |