The PMB5057KIT1 is a 7" pole mount kit in stainless steel, the 50-57mm size with small clamps. It lets installers and integrators mount compatible Hammond enclosures securely to poles from 1.5in to 7in in diameter, and the brackets can also be mounted to square or rectangular shapes.

According to the ordering table it suits the non-flanged 1554/55E, 1554/55EE, 1554/55F, 1554/55G, 1554/55J, 1554/55JL and 1554/55K, the flanged 1555FF and 1555JF (all M4-0.7 x 20mm screws), and the 1556C and 1556CA, which use #8 x 1/2" screws. Note that the 1556 series is not designed for outdoor use.

The purchased kit includes 2 brackets, 2 clamps and hardware, all made from stainless steel. The part page lists a size of 11 in x 5.5 in x 1 in (279 mm x 140 mm x 25 mm) and a shipping weight of 0.71 lbs (0.32 kg); the bracket drawing shows 88.00 mm [3.46 in] length, 46.99 mm [1.85 in] width and 43.38 mm [1.71 in] height. Recommended hardware torque is 11.5-13.5 lbf-in (130-150 cN-m).

Install brackets with a hex key and nut drive (3mm hex key and 7mm nut drive for M4 hardware), then wrap and thread the clamps through the brackets and tighten with a 5/16in (8mm) nut drive while holding the enclosure against the pole. The kit is bagged and is RoHS and REACH compliant; the 15" version is PMB5057KIT2.