Rust-resistant stainless steel M5 bolt set Suitable for use on stems, etc. Stainless Steel Screw Pitch: 0.03 inch (0.8 mm); Compatible Allen Wrench: 0.2 inch (4 mm); Weight: M5 x 0.6 inch (4 g); M5 x 18 mm); Weight: 0.2 oz (5 g); M5 x 20 mm: 6 g); Washer included *Size is the length of the neck. Product color and size: The color of the product may look different from the actual product depending on your display settings. Product specifications, logo design, etc. may be subject to change for product improvement. We also cannot answer measurements or personal fit that the manufacturer does not announce. Please be aware of