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PEC Replacement Lock Bolt & Nut Assembly | For 12"–24" Combination Squares
Restore the precision of your favorite layout tool. This heavy-duty lock bolt and nut assembly is the exact replacement part needed to secure your square, protractor, or center finder head to the blade. Engineered for a "no-slip" grip, it ensures your measurem
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Great service, the lock bolt fitted perfectly and works a treat,
Many thanks Micky
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Anonymous · August 11, 2026
Thank you for offering this replacement part. My nice 12" combination square fell onto the floor which caused this bolt to break. I was able to easily replace it to keep using my square.