With the Spax-RA frame anchor screw 7.5 x 60 mm, you can install timber, PVC, or aluminium window and door frames quickly and without tension into masonry or concrete. Thanks to the full thread, you drive directly into a pre-drilled 6 mm pilot hole without needing wall plugs. This prevents frame profiles from warping or distorting during tightening. The t-star plus T30 drive ensures positive bit engagement without cam-out, while the flat countersunk head finishes flush. Made from steel with a durable Wirox corrosion-resistant coating, this pack of 100 delivers reliable and solid fixings on every job.