S-96125A302 4-40 Shoulder Screws
Shoulder Screws
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
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Key Features & Benefits at a Glance
- Superior corrosion resistance and durability from Nickel Alloy construction, ideal for harsh industrial environments.
- Exceptional mechanical strength with 70,000 psi tensile and 35,000 psi shear strength for reliable load-bearing applications.
- Precise Class 3A thread fit ensures tight, secure fastening with minimal backlash in assemblies.
- Easy installation and removal with a knurled socket head and 5/64" hex drive, providing enhanced grip and torque application.
- Accurate shoulder positioning with a 1/8" diameter and controlled tolerances for consistent alignment in machinery.
- Broad compatibility through UNC coarse threading and right-hand direction, suitable for standard industrial components.
- Compliance with environmental regulations including RoHS 3 and REACH, ensuring safe and sustainable use.
Professional Applications & Engineering Value
This 4-40 UNC Class 3A shoulder screw is engineered to address critical challenges in precision machinery and industrial equipment, where corrosion resistance and high tensile strength are paramount. The Nickel Alloy material provides long-term reliability in corrosive settings, while the Class 3A thread fit and coarse UNC threading deliver secure, vibration-resistant connections. The knurled socket head with a 5/64" hex drive facilitates quick assembly and disassembly, reducing downtime in maintenance-heavy applications like automotive, aerospace, and electronic enclosures. By combining robust shear strength with precise shoulder diameter tolerances, this screw ensures accurate component alignment and extended service life in demanding environments.
Specification Summary & Compliance
This shoulder screw adheres to UNC thread standards with a Class 3A fit for high precision, featuring a shoulder diameter of 1/8" and length of 3/16" with tight tolerances. It meets RoHS 3 (2015/863/EU) compliance under exemption 6(c) and is REACH (EC 1907/2006) compliant, ensuring it aligns with environmental and safety regulations for industrial use.
