S-92710A218 4-40 x 3/16" Jack Screws

Key Features & Benefits at a Glance

• Superior Corrosion Resistance: Zinc Yellow-Chromate plating provides excellent protection against rust and environmental degradation, extending service life in harsh industrial settings.
• High Tensile Strength for Demanding Applications: With a 55000 psi tensile strength, these screws reliably handle high-stress loads without failure, ensuring joint integrity.
• Precise and Secure Fastening: The Class 2A/2B thread fit ensures smooth, accurate mating with female threads, reducing the risk of cross-threading and ensuring a tight, reliable connection.
• Optimized for Easy Installation: The standard 3/16" hex size with a tight ±0.005" tolerance allows for easy engagement with common tools, speeding up assembly.
• Durable Material Core: Made from 12L14 steel with a Rockwell B40 hardness, these screws offer a robust combination of strength and machinability for long-term performance.
• Compliant with Global Standards: Meets RoHS 3 and REACH compliance, ensuring they are free from hazardous substances and suitable for use in regulated markets and sensitive applications.
• Versatile Male-Female Thread Design: The integrated jack screw design with both male (4-40) and female (4-40) threads provides flexible mounting and spacing solutions in electronic and mechanical assemblies.

Professional Applications & Engineering Value

These 4-40 thread jack screws are engineered to solve critical fastening challenges in precision industries. The Zinc Yellow-Chromate Plated 12L14 Steel construction combats corrosion, making them ideal for electronics, telecommunications, and automotive applications where environmental exposure is a concern. The Class 2A/2B thread fit guarantees precise alignment and prevents stripping in delicate components like PCB standoffs and chassis mounts. With a high 55000 psi tensile strength and consistent 3/16" hex size, they provide reliable, repeatable performance in assemblies requiring secure spacing and vibration resistance, reducing maintenance and failure rates in the field.

Specification Summary & Compliance

This product adheres to standard inch system measurements with precise tolerances: Hex Size 3/16" (±0.005"), Thread Length 3/8". The threads are manufactured to Class 2A (Male) and Class 2B (Female) fit per standard inch thread specifications, ensuring dimensional accuracy and interchangeability. The mechanical properties include a Rockwell B40 hardness and 55000 psi tensile strength. It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its suitability for use in products requiring adherence to strict environmental and safety standards.