Glass-fibre reinforced polyamide based (PA) technopolymer, black colour, matte finish.

VB.639/130: glass-fibre reinforced polypropylene based (PP) technopolymer, black colour, matte finish.

Standard executions

  • VB.639-A: black-oxide steel boss, plain blind hole.
  • VB.639-B: brass boss, threaded blind hole.
  • VB.639-FP: brass boss, threaded pass-through hole.
  • VB.639-p: zinc-plated steel threaded stud with chamfered flat end as in UNI 947 : ISO 4753 (see Technical data).
  • VB.639-SST: AISI 303 stainless steel boss, threaded blind hole.


This knob has been designed for heavy duty work where the use of a hammer for a firmer clamping action is required.


Feeling overwhelmed with what product to choose?

Don’t delay, give OIC a call and talk to us about your industrial application. Our aim is to help your business choose the right Elesa+Ganter element for the function you need. Whether you need to clamp, close, connect, control, level, manoeuvre, measure or set. OIC has an Elesa+Ganter machine element to fit your need.

We want to find out about your industrial application need and where we can help. Our contact details are below.