S-90318A505 10-32 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel construction for reliable performance in harsh environments
• Precise component alignment through exact shoulder diameter and length tolerances for reduced assembly errors
• High-strength performance with 70,000 psi tensile strength and 35,000 psi shear strength for demanding applications
• Secure fastening with Class 2A thread fit ensuring consistent engagement and vibration resistance
• Space-saving design featuring ultra-low socket head profile for compact assemblies
• Easy installation and removal with hex drive design providing reliable torque transmission
• Industry compliance meeting RoHS 3 and REACH regulations for safe industrial use

Professional Applications & Engineering Value

This precision shoulder screw addresses critical alignment challenges in industrial machinery, automation systems, and precision instruments. The 316 stainless steel material provides exceptional resistance to chemicals and corrosion, while the 10-32 UNF fine threading with Class 2A fit ensures secure fastening in high-vibration environments. The precisely machined shoulder acts as a reliable locating dowel, eliminating component misalignment and reducing assembly time. The ultra-low socket head design allows for compact installations where clearance is limited, making it ideal for robotic assemblies, optical equipment, and precision manufacturing fixtures that demand both accuracy and durability.

Specification Summary & Compliance

This shoulder screw features 10-32 UNF fine threading with Class 2A thread fit per ASME standards, ensuring precise engagement and interchangeability. Shoulder dimensions maintain tight tolerances with diameter at 1/4" (-0.001" to 0") and length at 5/16" (0" to 0.002"). The component is manufactured from 316 stainless steel with Rockwell B70 hardness and meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance requirements for industrial applications.