John Vine Posted January 21, 2016 Share Posted January 21, 2016 Re my rear suspension refurb, the Nyloc on the A-frame-to-DD tube 1/2" UNF bolt is puzzling me. The fastener pack (30A001A -- Item 6) says: "T-type nut". I take it that T = "thin" here. Certainly the nut I took off is thinner than the replacement I bought. Is there any reason why I can't use a normal 1/2" UNF Nyloc?JV Link to comment Share on other sites More sharing options...
Member Jonathan Kay Posted January 21, 2016 Member Share Posted January 21, 2016 How many turns would you have on the outside of the nut?Jonathan Link to comment Share on other sites More sharing options...
DJ. Posted January 21, 2016 Share Posted January 21, 2016 When I built my Seven, I used the thinner nut as instructed, but recently while checking the bush found there was plenty of thread through a standard nut so used one of them instead.Duncan Link to comment Share on other sites More sharing options...
John Vine Posted January 22, 2016 Author Share Posted January 22, 2016 How many turns would you have on the outside of the nut?Yes, of course! Well done, JK. Silly of me to miss that.I reckon there are just about two threads visible, the outer one of which is on the taper. The nut is fairly tight but I've not torqued it up yet. So, maybe two and a bit clear threads when fully torqued?Google threw up this, which says:"Threaded fasteners, when installed and tightened, should protrude a distance of at least one thread beyond the top of the nut or plastic insert.""In self-locking nuts where the distance from the top of the nut to the locking element (plastic insert) is equal to or greater than the chamfer, the bolt or stud end may be flush with the top of the nut." So, it seems I'm probably OK, but I think I'm going to err on the side of safety and get a new thin Nyloc.JV Link to comment Share on other sites More sharing options...
Member Jonathan Kay Posted January 22, 2016 Member Share Posted January 22, 2016 Snap!:-)Jonathan Link to comment Share on other sites More sharing options...
revilla Posted January 22, 2016 Share Posted January 22, 2016 Surely where insufficient thread protrudes through the nut, the remedy is a longer bolt rather than a thinner nut? (Jonathan may be able to relate this to another thread he has engaged with recently). Link to comment Share on other sites More sharing options...
John Vine Posted January 22, 2016 Author Share Posted January 22, 2016 ...a longer bolt...Well, yes. The next size up (1/2" UNF) would be 3" -- plenty of room for the extra in the A-frame cup. Fitting a T-type nyloc will bring me back into line with the Assembly Guide, but I'm left wondering why CC didn't specify the longer bolt in the first place?JV Link to comment Share on other sites More sharing options...
Member Jonathan Kay Posted January 22, 2016 Member Share Posted January 22, 2016 De minimis non curat hex?Jonathan Link to comment Share on other sites More sharing options...
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