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Les Kerf 
Orange Level
Joined: 08 May 2020
Location: Idaho
Points: 1356
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 Topic: HD5 Track Bolts
Posted: 08 May 2025 at 3:09pm |
My Son-in-law's HD5G had a couple of track pad bolts come loose so he bought a few used ones from General Gear in Boise. So far so good, but they didn't have very many available, and they said that normally they just torch them off and don't attempt to salvage track bolts.
I have an HD5 Parts Manual, and it lists the track pad bolts as 1/2" NF. Yes, the threads are indeed 1/2" NF, but the shank of the bolts measure right at 0.530", or roughly 17/32".
The original bolts fit quite snugly in the holes, and a standard 1/2" bolt rattles around fairly loose.
Does anyone know of a source for new, correct bolts for these machines?
Edited by Les Kerf - 08 May 2025 at 3:10pm
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orangeman
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Joined: 12 Sep 2009
Points: 1857
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Posted: 08 May 2025 at 4:48pm |
Check with ITP - Link here: https://industrialtractorparts.com/
Last I knew they had a shop in Wisconsin, one in near NYC and in a few other states.
~ Orangeman
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Les Kerf
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Joined: 08 May 2020
Location: Idaho
Points: 1356
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Posted: 09 May 2025 at 9:38am |
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Thanks, I will contact them.
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Ray54
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Joined: 22 Nov 2009
Location: Paso Robles, Ca
Points: 4760
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Posted: 09 May 2025 at 10:43am |
The world keeps moving on, an this old guy does not.
But anyway Caterpillar use to have a on line publication called
One Safe Source had all their hardware listed
At one time 40 years ago Cat hardware was the best and in many cases cheaper than than lesser products. But from things on ACMOC some dealers seem to price it high to keep incidental business away.
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CAL(KS)
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Joined: 18 Sep 2009
Location: Chapman, KS
Points: 3804
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Posted: 09 May 2025 at 11:10am |
lots of aftermarket places out there have track bolts. i have purchased for HD16 and HD20/21 track. just hit up google and pick what you want
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Me -C,U,UC,WC,WD45,190XT,TL-12,145T,HD6G,HD16,HD20
Dad- WD, D17D, D19D, RT100A, 7020, 7080,7580, 2-8550's, 2-S77, HD15
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Coke-in-MN
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Joined: 12 Sep 2009
Location: Afton MN
Points: 42018
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Posted: 09 May 2025 at 2:18pm |
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Yes track bolts are different from standard hardened bolt , both in shank size below head as well as head itself , then nut for bolt also differs .
And Hardware store bolts of grade 2 , grade 5 and even grade 8 are not going to work for long , same for nuts as track nuts are square in many cases and also longer thread area , but are sized t be captive in track link
Edited by Coke-in-MN - 09 May 2025 at 2:35pm
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Life lesson: If you’re being chased by a lion, you’re on a horse, to the left of you is a giraffe and on the right is a unicorn, what do you do? You stop drinking and get off the carousel.
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Ages Cat
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Joined: 12 Sep 2009
Location: Hutchinson, MN
Points: 700
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Posted: 10 May 2025 at 11:41am |
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The last four I needed came from CAT.
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Curt Anderson
HD3, HD5B, HD6AG,HD6B dozer, I-400,615, 616,620,720,ACP25 lift truck, 1956 D Grader, AC 540 loader, AC #84 plow, Simplicity tractors, Agco MT225, Agco 2025,
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Les Kerf
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Joined: 08 May 2020
Location: Idaho
Points: 1356
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Posted: 10 May 2025 at 9:55pm |
Thanks to all for the pointers, I will check them out. 
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orangeman wrote: