The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > 47 - Current classic GM Trucks > The 1967 - 1972 Chevrolet & GMC Pickups Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 09-06-2023, 02:29 PM   #1
Rg500gamma
Junior Member
 
Join Date: Jul 2023
Location: Warwick ny
Posts: 44
Common bolt thread sizes used on 72 k20 longbed

I'm curious as to what the most commonly used bolt sizes used .
I will need to get the appropriate tap/chasers for the truck to clean out the bolt holes after paint. Obviously I will tape any studs
Thanks all.
Apologies if there is a thread already posted. I did a quick search and found nothing
Rg500gamma is offline   Reply With Quote
Old 09-06-2023, 04:01 PM   #2
body bolt
Registered User
 
Join Date: Oct 2020
Location: Albuquerque, New Mexico
Posts: 474
Re: Common bolt thread sizes used on 72 k20 longbed

3/8-16
body bolt is offline   Reply With Quote
Old 09-06-2023, 07:31 PM   #3
Rg500gamma
Junior Member
 
Join Date: Jul 2023
Location: Warwick ny
Posts: 44
Re: Common bolt thread sizes used on 72 k20 longbed

Thank you.
Rg500gamma is offline   Reply With Quote
Old 09-06-2023, 10:27 PM   #4
mr.mud1
Registered User
 
mr.mud1's Avatar
 
Join Date: Dec 2020
Location: Joggins Nova Scotia
Posts: 1,597
Re: Common bolt thread sizes used on 72 k20 longbed

It does depend on what area of the truck you're working on.alot of the sheetmetal is attached with 5/16's coarse thread bolts,some 3/8's.on the engine,depending what engine,there will be 1/4, 5/16's, 3/8's, 7/16's and 1/2 inch coarse thread usually.if you buy or have a tap & die set with SAE standard taps,you'll have all those sizes you need.
mr.mud1 is offline   Reply With Quote
Old 09-06-2023, 11:26 PM   #5
RustyPile
Registered User
 
RustyPile's Avatar
 
Join Date: Dec 2017
Location: Elkhart, Texas
Posts: 1,810
Re: Common bolt thread sizes used on 72 k20 longbed

If you buy just 2 - 3 sizes, you'll invariably need another size or two after you get started.. Taps and dies, bought individually can get expensive.. Go to Lowes and get this 11 size set..

https://www.lowes.com/pd/IRWIN-24-Pi...Set/1003018222

Last edited by RustyPile; 09-07-2023 at 08:38 AM. Reason: correct spelling
RustyPile is offline   Reply With Quote
Reply

Bookmarks


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 05:51 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com