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Dinnu

Member Since: 24 Dec 2019
Location: Lija
Posts: 3414

2012 Defender 90 Puma 2.2 CSW Santorini Black

Galvanized bolts in the vicinity of stainless will tent to sacrifice the zinc coating of the bolts faster, although the washer size (surface area) is not that large, so the effect may not be visible that soon. Just fyi.

There are zinc plated bolts, which tend to rust in no time, and then there are hot dipped galvanized bolts, which have a decent zinc coating. Example (local site): https://eshop.wuerth.com.mt/din-933-steel-88-hot-dip-galvanised 1988 90 Hard Top, 19J Diesel Turbo, Shire Blue - Restoration ongoing
2012 90 CSW, 2.2TDCI, Santorini Black

5th Jun 2023 6:23am

SteveG

Member Since: 29 Nov 2011
Location: Norfolk
Posts: 660

If you can cope with the Defender being off the road for a few days, you can remove, blast and then get your existing bolts Re-coated. Zylan coating seems to be the most resistant coating currently available, but not many places do it.

Anyway, if you get them re-coated, then just spray som Dynax UC on them https://bilthamber.com/product/dynax-uc/
This will keep them in good condition for about 12 months, before you need to re-spray with UC again. 👍[/url]

5th Jun 2023 7:09am

blackwolf

Member Since: 03 Nov 2009
Location: South West England
Posts: 17414

2007 Defender 110 Puma 2.4 DCPU Stornoway Grey

It would be cheaper to buy new 8.8 BZP fasteners than clean up the existing ones. Then treat them as suggested above.

5th Jun 2023 7:30am

NormanD

Member Since: 12 Aug 2011
Location: Bristol
Posts: 286

2015 Defender 110 Puma 2.2 USW Santorini Black

Why not talk with SD, post them a few photographs, I found them very helpful sorting out a Roof Rack issue a ew years ago. NormanD WE191

2015 110 XS Utility
2014 VW Caravelle 180 Executive

5th Jun 2023 9:29am

Chicken Drumstick

Member Since: 17 Aug 2020
Location: Near MK
Posts: 749

Co1 wrote:
I don’t imagine the ones that come with the roll cage are high tensile?

14th Jun 2023 4:11pm

Mo Murphy

Member Since: 01 Jun 2008
Location: Letchworth Garden City, Herts
Posts: 2235

1984 Defender 90 BMW M57 3.0 Diesel HT Auto Pennine Grey

blackwolf wrote:
It would be cheaper to buy new 8.8 BZP fasteners than clean up the existing ones. Then treat them as suggested above.

You can get a big bag of them from screwfix 👍
Mo The Land Rover 90 - Many are called, few are chosen.

50 Shades of Pennine Grey

14th Jun 2023 7:04pm

bodstruck

Member Since: 09 May 2020
Location: Wiltshire
Posts: 920

I have been in touch with SD and they are sending me some new external fasteners

14th Jun 2023 7:09pm

Screbble

Member Since: 26 Apr 2015
Location: Lancashire
Posts: 2103

2004 Defender 90 Td5 XS CSW Zambezi Silver

Good result - clearly their good reputation is deserved 👍

14th Jun 2023 7:45pm

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