![Stay and corner screw Duo Drive "Top Silver 800"](https://heicko.de/out/pictures/generated/category/thumb/1140_250_75/1_2_duo_drive.jpg)
• "Top Silver 800"
• Decorative countersunk head 90°, Ø 7.1 mm
• Braking ribs
• PH2 drive or TX20 drive
• Duo thread for PVC, Ø 4.1 mm with needle tip
• Roller sorted < 1000 ppm
• Screw connection in metal with pilot hole Ø 3.0 mm
• ift-Rosenheim tested, test report no. 509 22430 and 509 37933/2