S-90292A008 4-40 Shoulder Screws

Key Features & Benefits at a Glance

• Exceptional corrosion resistance from 17-4 PH Stainless Steel, ensuring long-term reliability in harsh industrial environments.
• High tensile strength of 130,000 psi provides superior load-bearing capacity and resistance to mechanical failure.
• Precision Class 3A thread fit guarantees secure, vibration-resistant connections with minimal play.
• Knurled socket head design offers enhanced grip for easier installation and removal with standard hex tools.
• Robust 65,000 psi shear strength withstands significant lateral forces in dynamic applications.
• Compliance with RoHS 3 and REACH ensures environmental safety and meets global regulatory standards.
• Coarse UNC threads enable quick assembly and reduced cross-threading risks.

Professional Applications & Engineering Value

Engineered for demanding industrial settings, this 4-40 UNC Class 3A shoulder screw is crafted from 17-4 PH Stainless Steel to combat corrosion and maintain integrity under stress. The knurled socket head enhances tool engagement, preventing slippage during torque application in automated assembly lines. Its precision shoulder diameter and length provide accurate alignment in machinery, reducing wear and misalignment. Ideal for precision instruments, pivoting mechanisms, and high-stress fastening, it ensures reliable performance in aerospace, automotive, and electronics where high tensile strength and regulatory compliance are critical.

Specification Summary & Compliance

This shoulder screw adheres to UNC coarse thread standards with a Class 3A thread fit for tight tolerances. Dimensions include a shoulder diameter of 1/8" (tolerance: -0.004" to -0.002") and shoulder length of 3/16" (tolerance: -0.005" to 0.005"). Manufactured to meet RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, it ensures environmental safety and industry suitability.