Material: 304 Stainless SteelStandard: GBSizes: Thread diameter (d)* extensive (S)* length (L)Thread Diameter: M3Features: Complete specifications, nice electroplating process,anti-corrosion and anti-rust, durable, anti-oxidation, warmth resistance, high strength, high toughness, quite a lot of applications.You can find more merchandise in several material, type, coloration , sizes and shapes in our shop! If you have special needs, please touch us, we are able to customise per your needs!Package includes: 5/10/30/50/100 pieces * According to your choiceNotes:1.The shade of the image is barely diversified from the real object due to the digital camera and light effect, please take the actual object as the standard.2.There is probably 0-0.3mm error for its thickness, 0-3mm error for its diameter / width / size in the manual measurement, please take it into consideration, thank you!