VB.639 Three-arm knobs

Technopolymer

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Technical specifications

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Main specifications

Material

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.
  • VB.639-FP-SST: AISI 303 stainless steel, threaded pass-through hole.
General information

Applications

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

Elesa
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