503SS Stainless Steel 304 Quick Buckle, 3 or 4 mm

The 503SS is the stainless steel counterpart to the 7075 aluminium A503, and the drawings for both show the same square frame with a 3 mm or 4 mm thickness option. Here the material is 304 stainless steel.

Grade 304 is the most widely used austenitic stainless steel, and it resists rust far better than plain carbon steel without plating. That makes the 503SS suited to harness and strap hardware used near salt water, on offshore and port facilities, in food and process plants that are washed down, or anywhere a plated finish would wear away. The choice between 3 mm and 4 mm lets the designer trade weight for stiffness.

No breaking strength is listed for this model, so buyers should define the rating required and confirm it by testing with the intended webbing. Specify thickness, surface finish (for example polished or satin), webbing width and marking in the RFQ. Power Honour can make the 503SS for OEM or private-label programmes and can tailor it to a customer drawing.