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Need advice from a bolt guru!
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alfamale
 


Member Since: 25 Jul 2011
Location: Stroud, Gloucestershire
Posts: 2185

United Kingdom 2011 Discovery 4 3.0 SDV6 XS Auto Zermatt SilverDiscovery 4
Need advice from a bolt guru!

I have two angle brackets (for a foxwing) that need fitting to my Front Runner Windcheetah rack.

At the moment the brackets are pre-drilled with holes to accommodate M6 bolts but the heads of these are too small to fit the T-Track system.

I know I could drill the holes to make them bigger but the brackets wouldn't then fit back onto the trailer. Is it therefore possible to purchase bolts with the thread of an M6 but the hex head of an M8?

 Front Runner Rack, OEM Ladder & RAI, Tuff-Trek Foxwing, B'rakhah Ingonyama Expedition Trailer, RLD's Spare Wheel Protector, Bodsy's Bars, Empty Pockets! Member of Gloucestershire & Worcestershire 4x4 Response.

 
 
Post #180736824th Apr 2017 4:40 pm
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L319
 


Member Since: 14 Dec 2013
Location: Herefordshire
Posts: 2080

United Kingdom 2005 Discovery 3 TDV6 HSE Auto Buckingham BlueDiscovery 3

M6 pan heads have a head dia of 12mm , presume you are looking for 13mm AF for the T Track.
  
Post #180737424th Apr 2017 4:56 pm
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Narpy
 


Member Since: 18 Jul 2011
Location: Stockport
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2005 Discovery 3 TDV6 S Manual Cairns BlueDiscovery 3

Cant you just use a washer?
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Post #180737724th Apr 2017 4:59 pm
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alfamale
 


Member Since: 25 Jul 2011
Location: Stroud, Gloucestershire
Posts: 2185

United Kingdom 2011 Discovery 4 3.0 SDV6 XS Auto Zermatt SilverDiscovery 4

Narpy: I thought about a washer but wondered if I'd get enough purchase to tighten it unless I use a locking washer.

L319: The hex head of the bolts I have are 10mm and I need 13mm as you stated.

Thumbs Up
 Front Runner Rack, OEM Ladder & RAI, Tuff-Trek Foxwing, B'rakhah Ingonyama Expedition Trailer, RLD's Spare Wheel Protector, Bodsy's Bars, Empty Pockets! Member of Gloucestershire & Worcestershire 4x4 Response.

 
 
Post #180738024th Apr 2017 5:02 pm
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Russell
 


Member Since: 24 Aug 2007
Location: Kent
Posts: 10564

United Kingdom 

Have you a local tool shop/maker that could turn the bolts down and re-thread them hence big head smaller thread?
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Post #180738324th Apr 2017 5:08 pm
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Discogaz
 


Member Since: 17 Mar 2014
Location: Bracknell
Posts: 1399

United Kingdom 2008 Discovery 3 TDV6 HSE Auto Cairns BlueDiscovery 3

You need something like this.

http://www.ebay.co.uk/itm/TITANIUM-M6-x-20...kv2CSYw3UQ
  
Post #180738424th Apr 2017 5:09 pm
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BLFarrar
 


Member Since: 02 Aug 2006
Location: Deepest, Dankest, Darkest, Dingiest......Le Halifax, West Yorkshire...with strong links to Ireland
Posts: 6222

France 2006 Discovery 3 TDV6 HSE Auto Lugano TealDiscovery 3
Are these..

A fixing into a tapped hole ?
Drill out the clearance hole (which won't be that much larger)
Then drill & tap the hole foe M8

If it's a bolted connection (bolt hoding through two clearance holes) & its the actual diameter of the shoulder of fastener ? You could explore different fasteners at either 6mm or 8mm
These won't be at B&Q or despite the name Screwfix.
Look around you for an engineering fasteners outlet (don't know just where you live)
If they sell capscrews & Torx they may have something on the shelf. Maybe need to pop in & look.

We do this all the time with repairs to bits of obscure kit & have been lucky
When we need a small quantity (which you dont) we get the local GKN rep involved....& he's dies just that bringing us in some cases samples of really obscure - maybe a bespoke fasterner for somewhere else.

It's rare we take a standard fastener & adapt.
+ we keep all the daft screws we come across in an archives & backnumbers box that's shared with springs. Old fashioned way - yes, but you'd be surprised at some fixes we have done.
Usually to Co Directors gramophones & vintage lawnmowers.

Hope that helps.
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Post #180738624th Apr 2017 5:10 pm
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BLFarrar
 


Member Since: 02 Aug 2006
Location: Deepest, Dankest, Darkest, Dingiest......Le Halifax, West Yorkshire...with strong links to Ireland
Posts: 6222

France 2006 Discovery 3 TDV6 HSE Auto Lugano TealDiscovery 3
Now that is

Discogaz wrote:
You need something like this.

http://www.ebay.co.uk/itm/TITANIUM-M6-x-20...kv2CSYw3UQ


Exotic £5..00 each ?
Try your local engineers merchants.
 BREXIT - done properly.
Right now ...We need Government - not Politics
Save the Dipstick Flagbearer-keep it simple, less likely to fail campaign-agenda items:Starting Handles, Acetylene Lamps.
Founder: Dipsticks-R-Us Inc
D3 HSE-perfectly formed, passenger friendly...has real DIPSTICK
Jag XK-but sadly no DIPSTICK...HUGE design fault
FL2 has DIPSTICK..."real comfort in rear seats"
VW Golf wondermobile (?)..has real DIPSTICK
Morris Minor..original DIPSTICK technology..and a real KEY. 
 
Post #180738824th Apr 2017 5:12 pm
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wee-man
 


Member Since: 19 Nov 2012
Location: IP14 4PP
Posts: 389

United Kingdom 

any good ?

M6x1.0mm pitch ~ thread diameter 6mm - spanner size 10mm - flange diameter 14.2mm - overall head height 6.6mm

plenty available : google flange head bolt 6mm

http://www.ebay.co.uk/itm/M5-M6-M8-M10-A2-...0935671186
  
Post #180739024th Apr 2017 5:15 pm
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alfamale
 


Member Since: 25 Jul 2011
Location: Stroud, Gloucestershire
Posts: 2185

United Kingdom 2011 Discovery 4 3.0 SDV6 XS Auto Zermatt SilverDiscovery 4

Discogaz wrote:
You need something like this.

http://www.ebay.co.uk/itm/TITANIUM-M6-x-20...kv2CSYw3UQ


Don't think the flange head will cut it. You need the shape of the hex in the track to enable the bolt/nut combo to be tightened/loosened.
 Front Runner Rack, OEM Ladder & RAI, Tuff-Trek Foxwing, B'rakhah Ingonyama Expedition Trailer, RLD's Spare Wheel Protector, Bodsy's Bars, Empty Pockets! Member of Gloucestershire & Worcestershire 4x4 Response.

 
 
Post #180739824th Apr 2017 5:37 pm
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alfamale
 


Member Since: 25 Jul 2011
Location: Stroud, Gloucestershire
Posts: 2185

United Kingdom 2011 Discovery 4 3.0 SDV6 XS Auto Zermatt SilverDiscovery 4

wee-man wrote:
any good ?

M6x1.0mm pitch ~ thread diameter 6mm - spanner size 10mm - flange diameter 14.2mm - overall head height 6.6mm

plenty available : google flange head bolt 6mm

http://www.ebay.co.uk/itm/M5-M6-M8-M10-A2-...0935671186


Thanks but, for the reasons above, I don't think the flange surrounding the hex head will work.
 Front Runner Rack, OEM Ladder & RAI, Tuff-Trek Foxwing, B'rakhah Ingonyama Expedition Trailer, RLD's Spare Wheel Protector, Bodsy's Bars, Empty Pockets! Member of Gloucestershire & Worcestershire 4x4 Response.

 
 
Post #180739924th Apr 2017 5:39 pm
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Discogaz
 


Member Since: 17 Mar 2014
Location: Bracknell
Posts: 1399

United Kingdom 2008 Discovery 3 TDV6 HSE Auto Cairns BlueDiscovery 3

http://www.ebay.co.uk/itm/Yamaha-R1-R6-etc...IiUnar6VCQ

a lot of biked use these pan head bolts to attach the fairings.

Above is a slightly less exotic version of the same thing.

Pop into your local bike shop as they will have some kicking about.
  
Post #180740024th Apr 2017 5:39 pm
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alfamale
 


Member Since: 25 Jul 2011
Location: Stroud, Gloucestershire
Posts: 2185

United Kingdom 2011 Discovery 4 3.0 SDV6 XS Auto Zermatt SilverDiscovery 4
Re: Are these..

BLFarrar wrote:
A fixing into a tapped hole ?
Drill out the clearance hole (which won't be that much larger)
Then drill & tap the hole foe M8

If it's a bolted connection (bolt hoding through two clearance holes) & its the actual diameter of the shoulder of fastener ? You could explore different fasteners at either 6mm or 8mm
These won't be at B&Q or despite the name Screwfix.
Look around you for an engineering fasteners outlet (don't know just where you live)
If they sell capscrews & Torx they may have something on the shelf. Maybe need to pop in & look.

We do this all the time with repairs to bits of obscure kit & have been lucky
When we need a small quantity (which you dont) we get the local GKN rep involved....& he's dies just that bringing us in some cases samples of really obscure - maybe a bespoke fasterner for somewhere else.

It's rare we take a standard fastener & adapt.
+ we keep all the daft screws we come across in an archives & backnumbers box that's shared with springs. Old fashioned way - yes, but you'd be surprised at some fixes we have done.
Usually to Co Directors gramophones & vintage lawnmowers.

Hope that helps.


It would be a shame to drill into the rack but what I could do is find somewhere with a bench drill and ask them to drill new 8mm holes between the existing 6mm ones in the bracket? I then have the best of both worlds!

 Front Runner Rack, OEM Ladder & RAI, Tuff-Trek Foxwing, B'rakhah Ingonyama Expedition Trailer, RLD's Spare Wheel Protector, Bodsy's Bars, Empty Pockets! Member of Gloucestershire & Worcestershire 4x4 Response.

 
 
Post #180740324th Apr 2017 5:42 pm
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BLFarrar
 


Member Since: 02 Aug 2006
Location: Deepest, Dankest, Darkest, Dingiest......Le Halifax, West Yorkshire...with strong links to Ireland
Posts: 6222

France 2006 Discovery 3 TDV6 HSE Auto Lugano TealDiscovery 3
Never thought

Of a bike shop.🤥
 BREXIT - done properly.
Right now ...We need Government - not Politics
Save the Dipstick Flagbearer-keep it simple, less likely to fail campaign-agenda items:Starting Handles, Acetylene Lamps.
Founder: Dipsticks-R-Us Inc
D3 HSE-perfectly formed, passenger friendly...has real DIPSTICK
Jag XK-but sadly no DIPSTICK...HUGE design fault
FL2 has DIPSTICK..."real comfort in rear seats"
VW Golf wondermobile (?)..has real DIPSTICK
Morris Minor..original DIPSTICK technology..and a real KEY. 
 
Post #180740424th Apr 2017 5:45 pm
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Hardware
 


Member Since: 28 Jun 2016
Location: Hiding under the M60
Posts: 12709

United Kingdom 2011 Discovery 4 3.0 SDV6 XS Auto Sumatra BlackDiscovery 4

I was going to suggest extra holes for the 8mm fixing but you beat me to it.

if you don't do that and you really, really want non-standard bolts and can't find them near you there's a weird little shop in Salford that has everything - or it seems that way - and sell in small quantities, which is also useful ... Barry & Sons

i'm sure they could post them to you ... if not, and assuming they have something, pm me and i'll see if I can get them for you next time i'm passing there.
 .


Dean
====================================

2011 D4 XS - OBD port protection, RLD spare wheel protector, All LED interiors lights, Timed Climate enabled, iiD tool paired.
2011 D4 Landmark - Stolen from same dealer before I paid for it
2011 D4 GS - Stolen whilst at dealer Sad ... All LED interiors lights, DRLs, Spare Wheel protector.
1996 300Tdi - Eaten by tin worms 
 
Post #180746424th Apr 2017 7:22 pm
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