Heavy Duty Body - Small Head Design for Wood Framed Windows
Small Head Design
Can support heavy and large framed wood windows
Works as fixed screw in conjunction with GRK Top Star adjustable window shim screw
Made in Germany
Order T-25 Drive Bits seperately here
7.5mm (9/32in) x 92mm (3 5/8in) box of 100 7.5mm (9/32in) x 112mm (4 7/16in) box of 100 7.5mm (9/32in) x 132mm (5 3/16in) box of 100 7.5mm (9/32in) x 152mm (6in) box of 100 7.5mm (9/32in) x 182mm (7 3/16in) box of 100 7.5mm (9/32in) x 212mm (8 3/8in) box of 100
The 7.5mm diameter heavy duty window screw from Dresselhaus is ideal for supporting large wood framed windows.
I used these to secure Zola windows to an ICF house. I used the Fox Blocks and Fox Buck, so I did not have a wood-based bucking system. Mine was EPS foam. So, I needed longer screws than what was provided to be able to go through the foam buck into the concrete. These did the job well. Securely held my windows in place.
A note on concrete.... you need a 1/4" masonry bit if you're driving this into concrete.
My only 'complaint' is I wish they were silver instead of goldUnknown
11th Oct 2016