up height: 3.7cm
Seal ring: 3.95cm/3.7cm
Closed height: 2.8cm
Material: zinc alloy, brass
Thread size: M8
Color: silver/silver+golden
Diameter: 6.6cm/3.52cm
High-quality brass material is not easy to rust
Spring mechanism easy to pop up the thread
100% Brand new and high quality.
up bolt thread: M8, M16
Suitable for most standard accessories
Features: