Materials:
W118B-W118H:
Steel with strength class 5.8.
W118CIN:
Stainless steel (Aisi 303).
Surface finish:
W118...H (nickel plated):
Turned and sandblasted.
W118...B (black-oxide treated) and W118....CIN (stainless steel):
Turned and polished.
Colour:
W118...B:
Black-oxide treated.
W118...H:
Nickel-plated.
W118...CIN:
Natural.
Hole:
Female threaded hole machined from solid metal (thread tolerance 6H).
Special requests:
Upon request and for special quantities knobs can be supplied to customer’s drawing with hole diameter d1.