Stainless Steel Letters Signage and Stainless Steel Numbers Signage are suitable for interior stainless steel signage & exterior stainless steel signage. Our quality stainless steel lettering signage will provide your business or home with a stylish and elegant look. Available in natural satin and polished finishes with thicknesses of 1/4", 3/8" and 1/2". Custom cut stainless steel letter is water jet cut using a softened water pressurized to 45,000 psi forced through an .010 orifice at 3 times the speed of sound, this technique is used to produce the highest quality stainless steel letters and numbers available. Water jet cut stainless steel logos and custom type styles are available. Stainless steel sign letters are easy to install with studs and an installation pattern, showing you precisely where to drill your mounting holes.