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Amazon.com: CLS-0420-2 Penn Engineering SELF-CLINCHING PEM NUT, Thread Size .250-20 (1/4-20), (Quantity 10) Fastener Material: 300 Series Stainless Steel, Passivated Finish, Hole Size in Sheet .344 inches : Industrial & Scientific
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Threaded Inserts for Plastics - PENN Engineering - PDF Catalogs | Technical Documentation | Brochure
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