S-90298A207 6-32 ASME B18.3 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction and passivated finish for extended service life in harsh environments
• Precise component alignment ensured by the 3/16" shoulder with tight diameter tolerance of -0.001" to 0.001"
• High-strength performance with 70,000 psi tensile strength and Rockwell B55 hardness for demanding applications
• Reliable thread engagement through Class 3A thread fit and UNC coarse threads for vibration resistance
• Easy installation and removal with hex socket drive requiring only 3/32" hex key
• Industry-standard compliance meeting ASME B18.3 specifications for guaranteed dimensional accuracy
• Environmental responsibility with RoHS 3 and REACH compliance for safe use in regulated industries

Professional Applications & Engineering Value

This 18-8 stainless steel shoulder screw delivers exceptional engineering value in precision alignment applications where component positioning is critical. The 3/16" shoulder length with minimal tolerance variation provides exact spacing between assembled parts, eliminating the need for additional spacers or washers. The Class 3A thread fit ensures secure fastening in industrial equipment, while the passivated finish enhances corrosion resistance in environments exposed to moisture and chemicals. The hex socket drive allows for high-torque installation in confined spaces, making these shoulder screws ideal for machinery, automation systems, and precision instruments where reliability and dimensional accuracy are paramount.

Specification Summary & Compliance

Manufactured to exacting standards with Class 3A thread fit and UNC coarse threads (6-32 size), this shoulder screw maintains dimensional precision per ASME B18.3 specifications. The shoulder features tight tolerances with diameter variation of -0.001" to 0.001" and length tolerance of -0.005" to 0.005". The component is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across various industrial applications while meeting international quality standards.