Heavy Duty Body - Small Head Design for Wood Framed Windows
- Small Head Design
- T-25 drive
- 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
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
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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 gold