Rocketron Posted March 3, 2023 Share Posted March 3, 2023 Does anybody know a place that carries square head bolts? I'd like to try to stick with original style bolts if possible but I'm having a hard time finding square head bolts. Mainly what I need are 3/8" diameter and range in length from 2-1/2" to 6". Any ideas? Link to comment Share on other sites More sharing options...
Lahti35 Posted March 3, 2023 Share Posted March 3, 2023 (edited) Try Mcmaster Carr, they have them in grade 5 and 8. I've also been able to source them at my local hardware, not the big box stores. Edited March 3, 2023 by Lahti35 (see edit history) Link to comment Share on other sites More sharing options...
3macboys Posted March 3, 2023 Share Posted March 3, 2023 Looks like Fastenal carries them or a while back someone else has posted about this company: https://blacksmithbolt.com/ 1 Link to comment Share on other sites More sharing options...
avgwarhawk Posted March 3, 2023 Share Posted March 3, 2023 Amazon. Found several on the site. Link to comment Share on other sites More sharing options...
George K Posted March 3, 2023 Share Posted March 3, 2023 Blacksmith Bolt & Rivet Supply. Link to comment Share on other sites More sharing options...
Swear57 Posted March 3, 2023 Share Posted March 3, 2023 Not to sound stupide but what use square head bolts? Link to comment Share on other sites More sharing options...
hidden_hunter Posted March 3, 2023 Share Posted March 3, 2023 Cadillac have a bunch of them on my type-61 including on things like the brake stops The ones I've never been able to find a good source for are D head bolts Link to comment Share on other sites More sharing options...
30DodgePanel Posted March 3, 2023 Share Posted March 3, 2023 Depending on your project, here is another site to consider Square Head Bolts – Old West Iron Link to comment Share on other sites More sharing options...
JV Puleo Posted March 3, 2023 Share Posted March 3, 2023 13 hours ago, Swear57 said: Not to sound stupide but what use square head bolts? They were commonly used on early cars... 1 Link to comment Share on other sites More sharing options...
1937hd45 Posted March 3, 2023 Share Posted March 3, 2023 1 hour ago, JV Puleo said: They were commonly used on early cars... Rolls Royce used then well into the 1930's. 1 Link to comment Share on other sites More sharing options...
Rocketron Posted March 4, 2023 Author Share Posted March 4, 2023 Thanks everyone. It looks like Blacksmith Bolt & Rivet Supply has got what I'm looking for. Why do I want square head? Because I want the car to look original and square head is what it came with. 1 Link to comment Share on other sites More sharing options...
ericmac Posted March 4, 2023 Share Posted March 4, 2023 Not to hijack your thread but I was wondering about a similar thing, high head hex bolts. What came off my car was probably 3/16-1/4 tall while all I can find now have bolt heads more like 1/8 tall. 1 Link to comment Share on other sites More sharing options...
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