The Stainless Steel Cable ties are great for projects the standard nylon zip ties cannot handle. Applications like high heat, extreme weather conditions or high vibrations. These metal fasteners use a rolling ball self-locking mechanism that offers smooth installation while maintaining a 200 or 350 tensile strength depending on the width; Grade 304 Stainless Steel ties offer excellent corrosion resistance and strength, is readily formed, can be readily welded and minimizes chromium carbide precipitation. With a technical standard of ASTM (American Society for Testing and Materials) A276, these cable ties are built to last