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Old 06-12-2019, 01:24 PM   #21
71CHEVYSHORTBED402
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Join Date: Feb 2009
Location: Northern Nevada
Posts: 7,123
Re: Makers marks on OEM bolts

Yesterday I installed a cool little 3/8 bolt for the distributor hold-down. It's the only one like it off the truck. Recessed head flange bolt, 3/8-16 x 9/16", stamped "E". Not tapered.

Few weeks ago I installed a bolt marked with a triangle for an A/C support bracket. Kind of cool, because the bracket is stamped with a triangle as well, almost as if it were a kit.
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Tony
71 Custom Deluxe, SWB, 2WD, 402, A/C. I developed an assm. guide "kit" for restoring it from ground up. With assys, the guide accts for 1000s of OEM identifications and part numbers, all written in short order. 700+ images include assm, illust., charts, and points of interest. Much of the info. applies to all 67-72 GM trucks, and to a lessor degree all 67-72 GM vehicles. My build thread, and more on the guide https://67-72chevytrucks.com/vboard/...d.php?t=730025
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