S-92710A217 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
• Precise mechanical alignment ensured by ultra-tight ±0.005" hex and length tolerances for reliable assembly fit
• High load-bearing capacity with 55,000 psi tensile strength and Rockwell B40 hardness for demanding applications
• Secure thread engagement through Class 2A/2B fit between male and female threads, minimizing loosening under vibration
• Easy installation and adjustment with standard 3/16" hex head design compatible with common tools
• Environmental compliance assurance meeting RoHS 3 and REACH standards for global supply chain integration
• Versatile male-female threading (4-40) enabling flexible stacking and spacing in multi-component assemblies

Professional Applications & Engineering Value

Engineered for precision spacing and alignment in electronic enclosures, communication hardware, and industrial control systems, this 3/16" hex 4-40 jack screw solves critical vibration-induced loosening challenges. The Zinc Yellow-Chromate plated 12L14 steel construction provides sacrificial corrosion protection while maintaining 55,000 psi tensile strength for repeated adjustment cycles. Its Class 2A/2B thread fit ensures consistent mating with threaded inserts and standoffs, eliminating play in stacked PCB assemblies. The combination of Rockwell B40 hardness and precise ±0.005" dimensional control makes it ideal for applications requiring exact component positioning without compromising mechanical integrity.

Specification Summary & Compliance

This jack screw features 4-40 unified threads with Class 2A (male) and Class 2B (female) fit per ASME B1.1 standards, maintaining ±0.005" dimensional tolerances across hex size and length. Manufacturing complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring hazardous substance restriction adherence for global markets.