seeking a source for M11 x 1.75 NUTS, for completion of three old air-cooled transporter trailer hitches. need 24 or these metric nuts in total, give or take. these nuts fit ONTO what I would refer to as "huge saddled U-bolts" that attach the hitch itself to the VW frame. also would like help identifying maker of this hitch, which is described in part in the discussion below
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M11 anything is tough, but you should be able to find a tap, with which you can make the nuts.
=right, I suggested that to him: buy near-sized nuts, drill em out, and tap 'em...
It took much searching when I needed an M11 X 1.25 tap. Alternately, can you change the studs/bolts to M12? much better...
=well, this hitch in part involves these 'weird' nuts screwing up onto some VERY special 'saddled' U-bolts, consequently his reluctance to 'convert' these same original U-bolts to a different thread size...
To my knowledge, VW never used M11 on anything. Are you sure they're not M12?
=I'm not sure of anything, however, my offline buddy (for whom I'm making this inquiry) SWEARS the dang things are m11 x 1.75 sized, as he held metric pitch gauges up to 'em. anyway, VW didn't MAKE the hitch, it's just trailer hitches FOR VW, not "made BY". my guess is it's a 'limited production run', possibly by some german guys in their small shop, in the fifties or sixties or so... === === Are you sure its metric. Odd anyone would use such an obscure thread on a item like a trailer hitch.
=this is a VERY old, made for use WITH an aircooled VW transporter-van, but not made BY volkswagen, VERY weird, super-stout, probably aftermarket, trailer hitch. hitch believed to be made in germany. it attaches to the main crosstube by the transaxle and the "big Y" part of the frame ONLY ....
=plus, there are NO maker names or numbers 'stamped into' the hitch, and no (remaining, anyway) maker decals on it. this (these three hitches, actually) is essentially a piece of 'history' here he's looking to complete, if possible...hitch longest main parts are made of (what appears to me to be) roughly four or five foot long 1.5 inch by .5 inch flat bar, heat-bent 'the hard way' to fit in there (though, IF the hitch IS german made, I'd expect those flat bars to be metric dimensioned-we'll check this soon....). he says he -thinks- others refer to this hitch as a 'westphalia' hitch, though we're not at all sure, at this point...if thats a 'type' name, or a 'maker name' or just a 'name in error' (yes, we know about VW/westphalia campers, but that appears unrelated to the hitch name)....we'd be grateful if anyone 'better knows' this hitch who can tell us who made it where/when...
You could try 7/16 UNC as that seems pretty close to M11 x 1.75.
=yeah, that's what I told HIM last nite, but I'm gonna have a go at trying that MYSELF today, 20 miles from here, at my shop...he has THREE of these super-rare hitches, and apparently they're some sort of 'cult collectable' for aircooled VW followers....
=thanks you guys :-)/we still ARE looking for those 'weirdie-size' metric nuts
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