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    Got a part number? Use our easy Part Finder to search our online catalog for select Assembly Technologies, Dodge®, Heli-Coil®, POP®, Tucker®, and SPR products, as well as our fasteners for plastic applications.

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    Drill Size Calculator

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    For recommended drill and hole sizes for cut threads and cold forming, please refer to our drill size chart or contact the Spiralock® Engineering Department at (248) 543-7800.