Steel City 503 SS316 503 BEAM CLAMP IN 316 STAINLESSST'L

The 503 SS316 beam clamp has a 2-1/8 inch jaw opening, so it clamps onto beam flanges up to that thickness. Measure the flange edge where you intend to set the clamp, not the web, since flange thickness tapers on many rolled shapes. Anything thicker than 2-1/8 inches needs a larger-jaw clamp.

Yes. The 503 SS316 is built in 316 stainless steel, which is the grade specified for chloride exposure such as coastal air, food processing wash-down, water treatment, and chemical plants. That is the whole reason to pick this version over a plain malleable iron or electro-galvanized beam clamp.

Allow roughly 2-11/16 inches of width and 2-17/32 inches of depth for the clamp body. That matters when beams sit tight to a deck, to duct, or next to a run of conduit already in place, because you need room to get the clamp over the flange and turn the set screw.

Indoors, dry, and conditioned, a standard malleable or galvanized beam clamp does the job at lower cost. Go to the 316 stainless 503 when the atmosphere is corrosive: salt air, chlorinated or chemical wash-down, pool rooms, waste water. Mixing metals matters too, so if your rod, strut, and fittings are stainless, keep the clamp stainless to avoid galvanic problems at the connection.