Three-lobe knob M12x50 with threaded stud
Catalogue number: 57021.120.050
Catalogue search code: 57021120050
The three-lobe body made of glass-fibre-reinforced plastic is used for manual tightening of threaded connections. A zinc-plated steel stud with external metric thread M12 and a 1,75 mm pitch projects from the underside. The projecting length L is 50 mm, body height h is 46 mm and outside diameter d1 is 105 mm.
The visualisations provided here show the construction of the family. Exact variant dimensions are defined by the values in the description and parameters.
Sales unit and lead time
The price covers one knob. The catalogue weight of the sale quantity is 0,133 kg, based on 133 g per piece, excluding the unconfirmed carton weight. Lead time: 7-14 days. The carton and number of loose components in the illustration are illustrative.
Variant dimensions M12x50
The diagram provided here explains the catalogue symbols. Profile, body section, stud seating and thread are shown schematically. The diagram is not production documentation and is not intended for taking measurements from the illustration.
d - thread M12.
P = 1,75 mm.
d1 = 105 mm.
h = 46 mm.
L = 50 mm - projecting stud length.
Catalogue identification
57021 is the catalogue family number. It is not a DIN standard designation. No unconfirmed plastic grade, steel grade, coating thickness or permissible tightening torque has been stated.
Questions and answers
How many pieces does the price cover?
The price covers one knob.
Does the knob have an internal thread?
This variant has a projecting stud with an external thread M12 of 1,75 mm pitch. The projecting section is 50 mm long.
What materials is the knob made of?
The body is made of glass-fibre-reinforced plastic and the stud of zinc-plated steel.
How can the exact variant be found in the catalogue?
Use number 57021.120.050 or the form without dots 57021120050.
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