S-95446A430 10-32 Shoulder Screws

Key Features & Benefits at a Glance

• High tensile strength of 40,000 psi ensures reliable performance in demanding mechanical assemblies and reduces risk of fastener failure
• Precision Class 2A thread fit with UNF fine threading provides superior vibration resistance and secure fastening in high-precision equipment
• 360 Brass construction with Rockwell B55 hardness offers excellent corrosion resistance while maintaining machinability for extended service life
• 1/4" shoulder length with tight ±0.003" tolerance enables precise component alignment and eliminates the need for additional spacing components
• Hex socket drive design with 1/8" drive size allows for high-torque installation in confined spaces without stripping
• RoHS 3 and REACH compliance meets international environmental standards for use in regulated industries and global supply chains
• 22,000 psi minimum shear strength provides structural integrity for rotating assemblies and pivot applications

Professional Applications & Engineering Value

This precision shoulder screw delivers exceptional value in applications requiring exact component positioning and durability. The 360 Brass construction combined with UNF fine threading addresses common challenges in precision machinery, including vibration-induced loosening and corrosion in harsh environments. The 1/4" shoulder length with tight tolerances serves as an integral locating dowel, eliminating misalignment in assemblies while the socket head design enables secure installation in space-constrained applications. These shoulder screws are particularly valuable in precision instruments, rotating mechanisms, and electronic enclosures where Class 2A thread fit ensures consistent engagement without binding. The combination of 40,000 psi tensile strength and corrosion-resistant properties makes these fasteners ideal for long-term reliability in industrial automation, medical devices, and precision manufacturing equipment.

Specification Summary & Compliance

This shoulder screw features 10-32 UNF fine threads with Class 2A thread fit for precision engagement. The shoulder diameter maintains -0.002" to 0" tolerance while the shoulder length holds 0" to 0.003" tolerance for precise component alignment. Manufactured from 360 Brass with Rockwell B55 hardness, the fastener delivers 40,000 psi tensile strength and 22,000 psi minimum shear strength. The product is RoHS 3 (2015/863/EU) compliant with exemption 6(c) for lead in copper alloy and REACH (EC 1907/2006) compliant, meeting international environmental standards for industrial applications.