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Scaffold J Bolt & Nut, Individual, Passivated Finish

As low as £0.89 £0.74
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Technical Specifications

  • Diameter - M8
  • Material - Zinc
  • Finish - Passivated finish
  • Thread Length - 50mm
  • Jaw Opening - 55mm (inside edge to inside edge)
  • Quantity - Individual (square nut included)

Scaffold J Bolt & Nut, Box of 100, Passivated Finish

Scaffold Bolts, otherwise known as J Bolts Common fixing, when for fibre cement profiled sheeting on both commercial buildings and on many domestic outbuildings such as garages. The hook is used to fix around scaffold tube and secured up through the crown of the sheet.

  • 55mm opening (inside edge to inside edge)
  • Yellow Zinc
  • 50mm of thread
  • Comes with square nut

Should be used with either a M8 Spat washer and Top hat or with a sealer washer and cap as per images to to the left.  Washers and caps sold separately.
We do not recommend that you use hookbolts or scaffold bolts when fixing box profile steel sheet, drillscrews should be used wherever possible to ensure the most watertight and reliable fixing point.  If the only option is hookbolts due to the layout of the steel supports, then it is recommended that specialist bonded profiled saddle washers are used that sit over the crown of the profile.

Available Sizes - 
90mm, 110mm and 150mm Lengths

We also supply Fibre Cement Sheets and accessories and BAZ Drillscrew fixings for fixing Fibre Cement Sheets to Timber, Light Section Steel and Heavy Duty Steel.

  • 50mm Thread
  • Fits fibre cement sheets to steel purlins or angle irons
  • M8 Diameter
  • BZP yellow zinc finish
  • 55mm jaw opening

What is a J Bolt used for?
A hook bolt is used to fix a Fibre Cement sheet around a Scaffold Tube.

How accurate do I need to measure the required j bolt?
A J bolt only had 50mm top thread, you need to measure the size required as close as possible to allow enough thread for a Seala washer and Deep cap OR a Spat washer and top hat.

How are these fixed?
These are fixed in conjunction with either a Spat washer and Top Hat or a Seala washer and DEEP Seala Cap, you need to pre-drill the crown of a sheet and feed the hookbolt through, put the washer on then tighten the included nut onto the washer, then clip the Deep Cap or Top Hat over the top for a watertight seal.

What diameter are these?
These are M8 diameter.

Do I need to buy nuts?
No, the single j bolt includes a nut

Can I use these to fit to a steel angle?
You would usually use a regular Hookbolt to fit around a Steel Purlin or Angle Iron.

What material are these?
They are a Yellow-Zinc BZP Finish

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