Metpro Adaptable box is made of steel, with galvanised finish. It is comprises of body, flanged cover and M5 x 10mm lid fixing screws. It is available with 4 x 20mm on each face knock outs. It is compliant to LU standard 1-085 (for use on surface and sub-surface locations). It is authorised for use by London underground and comprised of body, flanged cover and 4 lid fixing screws with IP54 rating achieved when used in conjunction with Metpro rubber gaskets.