Aldon 4,828 #1 Posted February 3, 2016 All, I want to replace the lug nuts on my GT14. I looked at the manual and despite my misgivings ordered a set based on the information therein. The manual denotes 7/16-20. Well this is incorrect. The actual lug nuts are larger, albeit with fine thread. Bolt sizes are not my forte though. So does anyone know what the correct size is for me to order for the rear lug nuts? I know they are 1 inch long. The pic is of the manual and the incorrect info: Share this post Link to post Share on other sites
gwest_ca-(File Mod) 11,499 #2 Posted February 3, 2016 Mistake somewhere. This is an original 1971 parts list and the GT-14 is the 1GT model The 1487 is a 9/16"-18 in this list The 1004 is 7/16"-20 in this list This is where the 1487 stud shows up https://www.partstree.com/parts/toro/parts/1487/ Mostly D-Series Auto models and the C-195 Auto. The reason the GT-14's don't show up is because Toro pulled the parts lists for them a few years ago. At almost $9 each are they ever proud of them. Have you tried an automotive jobber? Another thought is to use a long threaded bolt from the back and add a regular 9/16" wheel nut on the front side. Garry 1 Share this post Link to post Share on other sites
WHX?? 51,803 #3 Posted February 3, 2016 I'm thinking 1/2 -20 can check when I get home or sure somebody can confirm me. Could be 9/16-18 but I would doubt they would be 5/8-18. 1 Share this post Link to post Share on other sites
Aldon 4,828 #4 Posted February 3, 2016 Thanks gents. They are unique for sure. Although obtainable once I can figure out the correct size. So hopefully someone will chime in with confidence. Hardware is dang pricey these days. Guess I can place an add for the 10 7/16-20 x 1 inch stainless bolts I ordered. 21.06 plus shipping. Easier and more expedient that sending them back and that's assuming they'd take them. While it will not sink me financially, i cant keep spending 20's needlessly or in error:-) Share this post Link to post Share on other sites
gwest_ca-(File Mod) 11,499 #5 Posted February 3, 2016 The 9/16"-18 fine thread uses a 33/64 drill bit to drill the hole before threading. You likely won't have a 33/64" drill bit but try a 1/2" drill bit in the threaded hole. A 1/64" of wiggle room and you have 9/16" -18 threads. Tap drill for 1/2" -20 fine threads is 29/64" Tap drill for 5/8" -18 fine threads is 37/64" Garry 2 Share this post Link to post Share on other sites
Shynon 7,482 #6 Posted February 3, 2016 (edited) Mine are 9/16-18. I noticed you ordered cap screws, they will work if you are coming from the back side and installing lug nuts otherwise you will need lug bolts. At posted by Tractorhogg. Edited February 3, 2016 by Shynon 2 Share this post Link to post Share on other sites
tractorhogg 612 #7 Posted February 3, 2016 these are 9/16" x 1" at 2.80 http://www.steinertractor.com/ABC397-rim-lug-bolt?CID=ABC397&gclid=CjwKEAiA58a1BRDw6Jan_PLapw8SJABJz-ZWbeEzphSEq-ExA4GsHreiVbh4tqHt_8FibhuguqnVDRoC5E3w_wcB 3 Share this post Link to post Share on other sites
Aldon 4,828 #8 Posted February 4, 2016 Much abliged gentlemen. Should have probably asked here on forum before I spent the money! Lol 1 Share this post Link to post Share on other sites
WHX?? 51,803 #9 Posted February 4, 2016 I was thinking the same thing Tom....those are real common stud bolts for boat & utility trailer hubs....lots of places to get those.....stainless on the other hand might take some soul searching Aldon....OOHH that would look sharp all polished up and .....Oohhh here we go 9/16×18'stainless Allens chucked up in a lathe with the chamfer turned and polis.....nevermind...I have an issue ... yes always ask here first. ....always will save ya a Jackson or two.... 1 Share this post Link to post Share on other sites
Aldon 4,828 #10 Posted February 4, 2016 Agreed. That was plan. Figured as long as I was getting new tread and wheels powdercoat end I would splurge for bling. I hve already sourced zinc bolts and chimed lugs so I am not giving up on Bling:-) Not to mention that these 15 inch rims and turf tires are way heavy to be trying to hold up and align the lug bolt into. As such, this may work as a much appreciated mod from original. When I was ten years younger I would call me wimpy. Hahahah 1 Share this post Link to post Share on other sites