50mm u bracket for horizontal beam 100mm u bracket for horizontal beam lh bracket for horizontal beam uk helix oak beam corbel shelf brackets 3 5 angle brackets plates bpc fixings steel beam brackets for 12ga 316l stainless t bracket the steel brackets used for beam heavy duty shelf bracket up to brackets clamps strut support steel shelf bracket no 2 400mm u bolt channel beam clamp set universal handrail brackets for cleat brackets o connor roofing angle brackets plates bpc fixings