Southco 7mm Square Key (Part No. E3-4-1) is engineered for reliable performance in professional fastening, access hardware and assembly applications. Its listed specification includes Plated Zinc. Suitable for a wide range of industrial and engineering applications, this component delivers dependable performance and consistent integration within manufactured assemblies. As part of the Southco product range, it reflects the brand's established focus on consistent quality and application-led engineering. Its practical design supports efficient production, reliable operation and long-term service in demanding environments.

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