GN 653.2

Version in Steel ST

  • Tensile strength class 5
  • visible face fine turned
  • black oxide finish

Version in Stainless Steel AISI 303 NI

  • AISI 303
  • visible face fine turned
  • matt shot-blasted

Knurled screws GN 653.2 can be used for to prevent loss of the thumb screw, due to the d4 recessed portion of the stud.

When using, instead of a typical tapped and bore hole, it is necessary to provide tapped bores with a thread d1 on each of the two elements to be assembled. Additionally, a clearance bore of d5 on one or both sides must be cut.

Depending on the design and required clamping length a1 ... a3 of the component being attached, there are a number of assembly options as shown.

  • Stainless Steel characteristics 
  • Strength values of screws 


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