Feature: 1. Made of high quality stainless steel material, corrosion resistance, rust resistance, no pollution. 2. A flange nut is a nut with a wide flange at one end and can be used as an integrated non?rotating washer. 3. The serration of the nut helps to avoid the vibration of the nut and increase the fixing ability of the nut. 4. With better performance, higher hardness and longer service life. 5. Precise workmanship, easy for tightening and easy to use, perfect for greenhouse supplies. Specification: Item Type: Screws Material: 304 Stainless Steel Color: As shown in the picture Specification: M6 Screw Size: Approx. 1.6x1.2cm/0.63x0.47in Nut Size: Approx.1.3cm / 0.51in Weight: Approx.135g/4.8oz . Package List: 20 x Screws20 x Flange Nut Note: 1. Please allow 1‑2in error due to manual measurement. Thanks for your understanding.2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.