The screw for the aircraft type is M3.5 x 50 mm.
The matching butterfly screw has the size M3.5 x 60 mm.
Size:
A (grey butterfly anchor): 36 x 20 x 15 mm.
Outer diameter of the cap: approx. 13 mm.
Opening hole: approx. 8-10mm
Suitable plate thickness: approx. 8-15mm
B (white plane shaped anchor): 30 x 20.5 mm.
Outer diameter of the cap: approx. 50 mm.
Opening hole: approx. 8-9mm
Suitable plate thickness: approx. 8-15mm