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#1
03-19-2026, 11:28 PM
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hardware screw bolt head stamp marking
Does anyone know who the manufacturer of a machine screw or bolt would be if it has NAT on it?
Last edited by SR-71; 03-19-2026 at 11:49 PM. |
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#2
03-20-2026, 05:36 AM
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I don't recognize that bolt head marking https://www.electronicfasteners.com/...onmarkings.pdf
Was it ink marked like for ringing up at the checkouts?
__________________
So long, farewell. |
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#3
03-20-2026, 09:18 AM
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Quote:
I’ve seen bolt heads with N A T before, but I have no idea what they were used on. The charts I found don’t list it. Seems NAT would stand for National ? Where did you see this marking ? |
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#4
03-20-2026, 04:19 PM
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Hi Chris,
They are from the original tie rod adjusting sleeve clamps from my GTO. They're a bit crusty from the years in the Midwest winters until it went off the road in 1972. |
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#5
03-20-2026, 07:37 PM
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Have seen NAT on intake bolting too.
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Jason |
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#6
03-20-2026, 09:58 PM
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__________________
Jeff R 60 Jaguar Mark 2, 3.8L Automatic 67 Sprint Firebird 230 OHC-6 4-Speed A/C 1971 Fiat 130 Coupe 3.2L SOHC V6, ZF 5-speed 78 Catlina Safari, Pontiac 400 powered 77 Astre Formula, 215 Buick V-8 T-5 73 Lemans Safari, 400 4bbl 4-speed 71 Catalina Enforcer, 455 4bbl 05 Dodge Magnum 3.5L SOHC V6 06 Mallet Solstice #024 LS2, Now with a Tremec 6060 6-speed! 2012 F-150 Echo Boost (My local Ford Dealer SUX!!!) 2020 Dodge Charger Scat pack (recovered) |
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#7
03-21-2026, 08:37 AM
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Whew! That's a lot of $ for a bolt, and it's not even grade 5 (three lines).
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#8
03-21-2026, 09:21 AM
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__________________
So long, farewell. |
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