We use these on our ratchet straps and custom applications. These stainless steel S-hooks can be combined with virtually any buckle to make a versatile strap. Stainless Steel S-Hooks would be great for a corrosion resistant strap. Our stainless steel S-hooks have a 1100 lb. test, but please keep in mind that once it is attached to a "cut" piece of material the strength changes. The working load would now be decided by the weakest point of the strap, and would have to be tested by you. Grade 304 Stainless Steel