its55 Posted October 11, 2022 Share Posted October 11, 2022 Gentlemen, Please advise, if you know, which of these is the correct nut (need 8 of them) for the exhaust manifold? Thanks! BMW Copper 8mm Hexnut for Exhaust - rogerstii WWW.ROGERSTII.COM BMW Copper 8mm Hexnut for Exhaust 11621744323 Genuine BMW Hex Nut | BMW Parts Deal WWW.BMWPARTSDEAL.COM Quote Link to comment Share on other sites More sharing options...
tech71 Posted October 11, 2022 Share Posted October 11, 2022 (edited) Either one would be suitable but given the cost differential, there's one clear choice. $2.77 for single nut is just stupid, even if it sports a BMW PN#. Belmetric is a good source of hardware, I like to put together a shopping list and order lot of stuff at one time, cuts down shipping costs. BelMetric.com - Metric Fasteners & Hardware BELMETRIC.COM Bel-Metric sells metric hardware & specialty automotive supplies nationwide. Visit our website to purchase metric fasteners, nuts, bolts, Time-Sert kits & more. In this case, RogersTii has them beat on exhaust nut price Edited October 11, 2022 by tech71 Quote Link to comment Share on other sites More sharing options...
its55 Posted October 11, 2022 Author Share Posted October 11, 2022 5 minutes ago, tech71 said: Either one would be suitable but given the cost differential, there's one clear choice. $2.77 for single nut is just stupid, even if it sports a BMW PN#. haha 😂 I was hoping to see this response!! Quote Link to comment Share on other sites More sharing options...
Mark92131 Posted October 11, 2022 Share Posted October 11, 2022 You can get those narrow flange M8 copper nuts for a 10mm wrench/socket which will help you clear some of the tighter bends on your exhaust manifold or header. Mark92131 Exhaust Nut Flange Class 8 Steel Copper 10mm Wrench Special - BelMetric BELMETRIC.COM Bel-Metric sells metric hardware & specialty automotive supplies nationwide. Visit our website to purchase metric fasteners, nuts, bolts, Time-Sert kits & more. 2 Quote Link to comment Share on other sites More sharing options...
its55 Posted October 11, 2022 Author Share Posted October 11, 2022 27 minutes ago, Mark92131 said: You can get those narrow flange M8 copper nuts for a 10mm wrench/socket which will help you clear some of the tighter bends on your exhaust manifold or header. Mark92131 Exhaust Nut Flange Class 8 Steel Copper 10mm Wrench Special - BelMetric BELMETRIC.COM Bel-Metric sells metric hardware & specialty automotive supplies nationwide. Visit our website to purchase metric fasteners, nuts, bolts, Time-Sert kits & more. good idea! Quote Link to comment Share on other sites More sharing options...
jimk Posted October 11, 2022 Share Posted October 11, 2022 Since the nuts are not copper but copper plated, skip the copper plate and apply some Felpro C5-A high temp copper anti-seize on the studs and nuts. 3 Quote Link to comment Share on other sites More sharing options...
ray_ Posted October 11, 2022 Share Posted October 11, 2022 (edited) 2 hours ago, jimk said: Since the nuts are not copper but copper plated, skip the copper plate and apply some Felpro C5-A high temp copper anti-seize on the studs and nuts. But they're so pretty! If I recall, the copper clad exhaust nuts are "locking," so that may be good to keep in mind. Cheers, Edited October 11, 2022 by ray_ 1 Quote Link to comment Share on other sites More sharing options...
tech71 Posted October 11, 2022 Share Posted October 11, 2022 (edited) I use copper plated nuts and I slather them in copious amounts of antisieze Edited October 11, 2022 by tech71 Quote Link to comment Share on other sites More sharing options...
ray_ Posted October 11, 2022 Share Posted October 11, 2022 24 minutes ago, tech71 said: I use copper plated nuts and I slather them in copious amounts of antisieze Because you know you're going to pull that manifold AGAIN! 1 Quote Link to comment Share on other sites More sharing options...
its55 Posted October 11, 2022 Author Share Posted October 11, 2022 26 minutes ago, tech71 said: I use copper plated nuts and I slather them in copious amounts of antisieze This sounds like the best idea 😂 Quote Link to comment Share on other sites More sharing options...
TobyB Posted October 11, 2022 Share Posted October 11, 2022 I bought some brass ones off ePay. They're 11mm hex stock that's been drilled and cut. They're awesome- sold for VW header applications, but they also work great on 2002 headers, when there's not enough clearance for that flange at the base. Otherwise, for the stock manifold, the 12mm hex version is OK. 10 mm over an 8mm stud leaves 0.50mm, and that's just a titch... thin. t Quote Link to comment Share on other sites More sharing options...
cdn97986 Posted October 12, 2022 Share Posted October 12, 2022 I just upgraded to the 318 style manifold gasket with integrated heat shield on my '75, and used these CRP ones from FCP. $0.39 a piece, worked great. BMW Volvo Exhaust Lock Nut - CRP 18307620549 | FCP Euro WWW.FCPEURO.COM BMW Volvo Exhaust Lock Nut - CRP 18307620549 3 Quote Link to comment Share on other sites More sharing options...
its55 Posted October 13, 2022 Author Share Posted October 13, 2022 On 10/11/2022 at 9:16 PM, cdn97986 said: I just upgraded to the 318 style manifold gasket with integrated heat shield on my '75, and used these CRP ones from FCP. $0.39 a piece, worked great. BMW Volvo Exhaust Lock Nut - CRP 18307620549 | FCP Euro WWW.FCPEURO.COM BMW Volvo Exhaust Lock Nut - CRP 18307620549 I was thinking of going w/ that gasket also but may go with the OEM metal heat shield instead, to get that "original look". Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.