brass
chrome
1 hole
18 mm
12 mm
M12 outside thread
4 mm hexagonal (hex key)
2 - 9 mm
19.5 mm
9 g
18 - 25 mm
38 mm
36.5 mm
15 g
5 hole
2.5 mm hexagonal (hex key)
plastic
M12 inside thread
8 mm
41 mm
o-ring (18 x 2,5 mm)
12 g