Thread size and pitch spare tire carrier
 

What is the OE bolt size and pitch for the interior spare tire carrier bolted to the bed floor behind the rear seat? It looks to be a fine thread bolt, possibly 7/16".

Re: Thread size and pitch spare tire carrier
 

Per extensive research, it appears that these bolts are 7/16"-20 x 1" long grade 5, zinc plated. They also used a star washer. Wales Beech was the OE supplier.

https://www.67-72chevytrucks.com/vbo...1&d=1487924133

https://www.67-72chevytrucks.com/vbo...1&d=1489938267

Re: Thread size and pitch spare tire carrier
 

Bolt marking ID

Re: Thread size and pitch spare tire carrier
 

9 external teeth 7/16" lock washers

https://www.ebay.com/itm/30417076930...gaAi9BEALw_wcB

Re: Thread size and pitch spare tire carrier
 

Nice write up thanks for sharing. Great to know the company that manufactured the WB bolts.

Would be fun to know what other suppliers were used. I like the bolts that have the anchor logo, commonly seen on the 12 pt points affixing the hood latch to the radiator support.

Re: Thread size and pitch spare tire carrier
 

The bolts with the anchor cast in the head originated from Anchor Bolt & Screw Company out of Elgin, IL.

Re: Thread size and pitch spare tire carrier
 

Thanks! Still in business I see: https://www.anchor-bolt.com/