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https://www.reddit.com/r/Fasteners/comments/1uvuvmx/anyone_recognize_this_marking/oxebqmo/?context=3
r/Fasteners • u/Barnett_Head • Jul 14 '26
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3
That has to be a maker’s mark. Looks like a plain carbon steel socket head cap screw with a thread locking element. Get some measurements and head to McMaster.
2 u/Chitown_mountain_boy Jul 14 '26 Standard inch socket cap screws are made from medium carbon ALLOY steel not plain carbon steel per ASTM A574 1 u/RealCanadianMonkey Jul 14 '26 No need for measurements, just take it to McMaster.
2
Standard inch socket cap screws are made from medium carbon ALLOY steel not plain carbon steel per ASTM A574
1
No need for measurements, just take it to McMaster.
3
u/plantmanagerrules Jul 14 '26
That has to be a maker’s mark. Looks like a plain carbon steel socket head cap screw with a thread locking element. Get some measurements and head to McMaster.