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garryforrestuk



Member Since: 01 Nov 2013
Location: north east
Posts: 27
United Kingdom 2014 Defender 90 Puma 2.2 XS CSW Corris Grey
Tow hitch bolts
Hi can any one confirm I have the correct bolts for the bottom of the six bolt holes in the picture, These are what I have ordered.M16 x 1.5P x 30mm Fine Pitch Cap Head Socket Screw Allen Bolt Steel Grade 12.9 and are unable to get them to fit the welded nuts on the cross member tow hitch mount, Picture borrowed from site member.


Click image to enlarge

Any help please Garry
Post #323192 11th Apr 2014 11:05pm
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munch90



Member Since: 26 Oct 2013
Location: guildford
Posts: 3558
England 
if your on about the six holes you can see under the spare wheel & above the centre of the step

not 100% on this without going to look ( I will go have a look for you )

but I think they have to be longer than 30mm as the threaded part is behind cross member , so the bolts go right through so 30mm wont be long enough
Post #323237 12th Apr 2014 8:48am
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munch90



Member Since: 26 Oct 2013
Location: guildford
Posts: 3558
England 
IGNORE ME!!! , YES THINK 30MM ARE LONG ENOUGH
Post #323253 12th Apr 2014 9:36am
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PaulMc



Member Since: 17 Jan 2009
Location: Kent
Posts: 508
United Kingdom 1989 Defender 110 2.5 TD HT Arles Blue
They should be standard pitch M16, not fine pitch.

. Paul.
1989 Arles Blue 2.5TD 110 Hardtop
1999 Epsom Green Discovery II 4.0 V8i 'XS'
Post #323269 12th Apr 2014 11:22am
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munch90



Member Since: 26 Oct 2013
Location: guildford
Posts: 3558
England 
because they a structural bolt are they fine pitch , think they maybe are (say again I think not 100% sure )
Post #323272 12th Apr 2014 11:37am
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blackwolf



Member Since: 03 Nov 2009
Location: South West England
Posts: 17871
United Kingdom 2007 Defender 110 Puma 2.4 DCPU Stornoway Grey
As stated above they are an M16 ISO Standard coarse series thread, 2mm pitch, not fine series (1.5mm pitch). You have the wrong thread. Grade 8.8 is entirely adequate, but socket head capscrews will be 10.9 unless otherwise specified.
Post #323319 12th Apr 2014 3:55pm
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garryforrestuk



Member Since: 01 Nov 2013
Location: north east
Posts: 27
United Kingdom 2014 Defender 90 Puma 2.2 XS CSW Corris Grey
Thank you all for the help need coarse thread not fine thread. My mistake Garry Thumbs Up
Post #323396 12th Apr 2014 10:35pm
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