Size 2 90° Corner Swivel - PCLAMPS-168-2 Swivel range is constructed using the female and male parts.The 173F is common to all combinations. The lugs on the fittings sizes 1 to 5 are the same dimension, it is possible to mix sizes if required, ie: A 173F-1 with a 173M-4. In addition to being used with the 173F to make the combination, all ‘M' fittings can also be used to secure various types of infill in place. WARNING: An entire structure should not be built just using swivel fittings. Manufactured to BS EN 1562 1997 Galvanised to BS EN 1461 1999