B-Line Eaton series beam clamps, 1000 lb, Safety factor of 5, Right angle clamp, 7, Stainless steel type 304

The B422-4SS4 right angle clamp is rated for 1000 lb, and that rating already includes a safety factor of 5. So the load you hang from it can go to 1000 lb without further derating on your end. Keep in mind the rating is for the clamp itself; the beam, the rod, and the connecting hardware each have to carry the same load.

It's Type 304 stainless steel, which is the grade specified for damp, washdown, and exterior support work where a plain or electro-plated steel clamp would rust at the threads first. Type 304 handles general atmospheric and interior wet exposure; for chloride-heavy environments like coastal exterior or pool chemical rooms, Type 316 is the usual step up.

Yes, the B422-4SS4 clamp is cULus Listed, so it carries both the US and Canadian listing. That matters on inspected commercial and institutional jobs where every piece of the raceway or cable tray support path has to be a listed component.

The clamp measures 6 in wide, 4.5 in high, and 4 in deep, and weighs 1.35 lb. Those numbers are worth checking against your available space when the clamp sits in a congested ceiling with ductwork or tray nearby, since a right angle body takes up more room off the flange than a compact C-clamp does.

No. The 1000 lb figure on the B422-4SS4 is the working load with a safety factor of 5 already applied, not the ultimate strength. Apply your own factors only if your project specification demands something beyond the standard factor of 5.

Order Eaton B-Line B422-4SS4. The SS4 suffix is the Type 304 stainless version; the same B422 body is built in other materials and finishes, so dropping the suffix on a purchase order is the usual way a plated steel clamp shows up on a stainless job.