S-92710A211 4-40 x 3/16" Jack Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with Zinc Yellow-Chromate plating on 12L14 steel, extending service life in harsh industrial environments.
• High tensile strength of 55,000 psi ensures reliable load-bearing capacity and resistance to mechanical stress in demanding applications.
• Precision Class 2A/2B thread fit guarantees smooth assembly, secure mating, and vibration resistance with minimal backlash.
• Complete hardware set includes hex nut, lock washer, and two flat washers for simplified inventory and faster installation.
• Consistent dimensional accuracy with hex size and length tolerances of ±0.005", enabling repeatable performance in precision assemblies.
• Rockwell B40 hardness provides excellent durability and wear resistance, maintaining thread integrity over repeated use.
• Full regulatory compliance with RoHS 3 and REACH standards, ensuring safety and environmental responsibility for global supply chains.

Professional Applications & Engineering Value

Engineered for precision alignment and secure fastening in industrial equipment, this 4-40 thread Jack Screw set addresses critical challenges in electronic enclosures, machinery mounts, and instrumentation panels. The Zinc Yellow-Chromate plated 12L14 steel construction combats oxidation and chemical exposure, while the Class 2A/2B thread fit eliminates cross-threading risks and ensures stable connections under vibration. Paired with a hex nut, lock washer, and flat washers, it streamlines assembly in tight spaces, reducing installation time and preventing loosening in dynamic environments. Ideal for OEMs and maintenance teams requiring inch-system screws with verified 55,000 psi tensile strength and consistent dimensional control.

Specification Summary & Compliance

This Jack Screw set adheres to Class 2A (external) and Class 2B (internal) thread tolerances per inch-system standards, with a 3/16" hex size and 4-40 thread size maintaining precise dimensional control (±0.005"). Manufactured from 12L14 steel with Rockwell B40 hardness, it meets mechanical performance benchmarks for industrial use. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring restricted substance-free components for global engineering projects.