KEE KLAMP COMB TEE & CROSSOVER|37257|Kee Klamp's #46 combination tee/crossover can be used on racking to join horizontal carrying rails to the upright, leaving the socket to take a horizontal tie across the section. For shelved racking it is usual to have the horizontal pipe outside the upright. On pallet racking it is preferable to have the carrying rails inside the upright. 37257