7.5 x 152mm Concrete frame screws WHO – for fixing of window and door frames PCV and WHOW – for

fixing of woodwork are made of carbon steel with protective zinc coating. Screws comprise

threaded section on the whole length and flat head (WHO)

or pan head (WHOW). Thread design ensures reliable and long-lasting connection. Screws are

designed for fixing of window and door frames in timber and masonry.

Types of substrates on which concrete frame screw 7.5 x 152mm WHO/WHOW can be installed:

• Normal concrete

• Solid clay brick

• Autoclaved aerated concrete