Durability and Longevity: Our twist lock fasteners are made from quality metal, providing durability and resistance to harsh marine environments. The included mounting screws are made from stainless steel, ensuring they remain sturdy and rust-resistant over time. Complete Package: Includes 20 sets of marine-grade twist lock fasteners. All necessary tools are provided for secure installation, ensuring your canvas stays firmly in place. Secure and Tight Lock: These canvas twist lock fasteners are designed to provide a secure and tight fit, preventing accidental loosening and helping protect your marine canvas snaps and fasteners. Easy Installation: The turn button twist lock fasteners come with stainless steel screws and washers included, making installation simple and efficient. Wide Range of Application: In addition to securing canvas eyelets, these versatile fasteners can be used with tarp grommets and other fastening applications, making them a valuable addition to any toolkit. Color: Silver Material: Metal Package Contents: 20 x Twist Lock Note: Light reflection and different displays may cause slight variations in color. Measurement error allowance is +/- 1-3 cm. Only the above package content is included; other products are not part of this package.