M8x30 Three-lobe knob with threaded stud - 1 pcs.

Three-lobe knob M8x30 with threaded stud

Catalogue number: 57021.080.030
Catalogue search code: 57021080030

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 M8 and a 1,25 mm pitch projects from the underside. The projecting length L is 30 mm, body height h is 37 mm and outside diameter d1 is 85 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 0,063 kg, based on 63 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 M8x30

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 M8.

P = 1,25 mm.

d1 = 85 mm.

h = 37 mm.

L = 30 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 M8 of 1,25 mm pitch. The projecting section is 30 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 57021.080.030 or the form without dots 57021080030.