Keith S Posted January 22, 2017 Share Posted January 22, 2017 Anyone know part numbers for Mack's 5/8"-18 shouldered frame & crossmember bolts? I stumbled across a 3AX1644 at https://aerobasegroup.com/part-number/3AX1644_01-554-9490. $7.00 each! Any ideas? Quote Link to comment Share on other sites More sharing options...
carlotpilot Posted January 22, 2017 Share Posted January 22, 2017 take one to fastenal have them match from their stock 1 Quote Link to comment Share on other sites More sharing options...
hurstscrambler Posted January 22, 2017 Share Posted January 22, 2017 Try McMaster Carr, they have alot of stuff and a good website. Andy Quote Link to comment Share on other sites More sharing options...
Rob Posted January 22, 2017 Share Posted January 22, 2017 They are called "body bound bolts" if looking around but really only required for absolute precision in location. That being said you actually bore the hole they are to fit a few thousandths undersize and pull them into position with the locking nut on the back side. I always use grade eight flange head capscrews in fine thread for the task of suspension member location and it is close enough, (really). I also always use "nylock" locking nuts so they don't back off through the years. I don't reuse them either although they are marketed to be reusable. I don't support that thought given they retain suspension. Typically I use Mcmaster-Carr for fasteners with the occasional Lawson Products for specialty fasteners. Fastenal done "screwed the pooch" a single time and I'm not very good at forgetting with the resultant being never a consideration given to them. 1 Quote Plodding along with no job nor practical application for my existence, but still trying to fix what's broke. Link to comment Share on other sites More sharing options...
Keith S Posted January 23, 2017 Author Share Posted January 23, 2017 Hit the jackpot on Mack Body Bound bolt part numbers & dimensions. Either: Visit: http://www.nextrancorp.com/nbindex.htm Or: See attached pdf files. Generally, prices are reasonable for bolts (except for that $7.00), nuts, washers Body Bound Bolts.pdf Bolts Cotter pin.pdf Nuts.pdf Washers.pdf Quote Link to comment Share on other sites More sharing options...
Rob Posted January 23, 2017 Share Posted January 23, 2017 They've always been high priced and I really don't know too many folks whom will use them when the cost is out of pocket expense. I've gotten by for years using the fine thread pitch without problems. Quote Plodding along with no job nor practical application for my existence, but still trying to fix what's broke. Link to comment Share on other sites More sharing options...
jackb61sx Posted January 23, 2017 Share Posted January 23, 2017 When we bolted the frame back together on our B-61, we knocked out the old rivet type and put all new grade 8 with a fine thread on all the bolts, picked them up at a local hardware dealer Quote Link to comment Share on other sites More sharing options...
wingman Posted January 24, 2017 Share Posted January 24, 2017 I agree with carlotpilot , fastenal has a lot of stuff for bigtrucks. They also will ship large items on a pallet for you to another fastenal distributor for a reasonable price.They will also load it on to your vehicle for you! Much cheaper rates than freight. Quote Link to comment Share on other sites More sharing options...
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