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1 Stainless steel knob screw
1 Stainless steel knob screw
1 Stainless steel knob screw

Stainless steel knob screw (screw thread measure M10x50mm, with black plastic knob full length 80mm , full height 50mm).
These screw fits to all our aluminium masts and can be used as an upgrade to the clamps that need to be adjusted without using a tool. You can simply remove the original hexagon screw and replace them with the knob screw.

NOTE:  Not  for use with antenna rotors.
Knob screws cannot be tightened as tightly as the standard hex-head bolts. 
In strong winds, the force applied to the antenna can cause the individual mast segments to rotate amongst themselves. 
As a result, the rotor control unit no longer corresponds to the actual direction the beam is pointing.

Further Info here:
  • dj0ip info page

  • available exclusively on shop.spiderbeam.com »
    301: Product permanently moved to - https://shop.spiderbeam.com/en/shop/1-stainless-steel-knob-screw-1946 »

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