Nigelw Posted November 21, 2013 Share Posted November 21, 2013 What tensile strength bolts should I get to refit the winch bumper on the D1? When I removed the old ones I was bemused to find two of them were 8mm thread rod So need to get some new ones long enough for the winch bumper, A bar and bash plate, but what strength would be best suited to this application? Quote Link to comment Share on other sites More sharing options...
Bowie69 Posted November 21, 2013 Share Posted November 21, 2013 8.8 would be fine. Quote Link to comment Share on other sites More sharing options...
western Posted November 21, 2013 Share Posted November 21, 2013 8.8 in my winch to chassis connection or you can go to 10.9 if you want a bigger rating. Quote Link to comment Share on other sites More sharing options...
elbekko Posted November 22, 2013 Share Posted November 22, 2013 Is it 4 or 6 bolts? But yeah, 8.8 should be adequate. Quote Link to comment Share on other sites More sharing options...
Nigelw Posted November 22, 2013 Author Share Posted November 22, 2013 It will be 6 for the bumper but the front 4 hold on the bash plate and "A" bar. Quote Link to comment Share on other sites More sharing options...
Nigelw Posted November 22, 2013 Author Share Posted November 22, 2013 Metric or UNF do you think? Probably better to fit nylocs too, but was wondering about some of those security bolts jost to make removal that little bit more difficult for me in the future Quote Link to comment Share on other sites More sharing options...
western Posted November 22, 2013 Share Posted November 22, 2013 Would be Metric on a Discovery. Quote Link to comment Share on other sites More sharing options...
Bowie69 Posted November 22, 2013 Share Posted November 22, 2013 M10 is normal for winch bumper bolts on RRC/Disco Quote Link to comment Share on other sites More sharing options...
elbekko Posted November 23, 2013 Share Posted November 23, 2013 Normal bumper bolts are M10 yeah, but I think the extra two are bigger holes? Quote Link to comment Share on other sites More sharing options...
Bowie69 Posted November 23, 2013 Share Posted November 23, 2013 True, guess it will depend on the bumper as to whether it will support M12s Quote Link to comment Share on other sites More sharing options...
Nigelw Posted November 23, 2013 Author Share Posted November 23, 2013 I tried the bumper and it will only take M10 bolts, will try to get them in 10.9 just to air on the side of caution, but otherwise 8.8 it will be in metric with new nylocs. Quote Link to comment Share on other sites More sharing options...
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