S-93985A302 1/4"-20 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 416 Stainless Steel construction for extended service life in harsh industrial environments
• Precise component alignment ensured by the 5/16" shoulder diameter with tight tolerance (-0.001" to 0")
• High-strength performance delivering 120,000 psi tensile strength and Rockwell C26 hardness for demanding applications
• Reliable thread engagement with Class 2A UNC coarse threads providing secure fastening in various materials
• Easy installation and removal through hex socket drive design requiring minimal clearance
• Consistent dimensional accuracy maintained through precise shoulder length and diameter tolerances
• Environmental compliance meeting RoHS 3 and REACH regulations for safe industrial use

Professional Applications & Engineering Value

This precision shoulder screw addresses critical alignment challenges in machinery assembly, pivot points, and rotational mechanisms. The 416 Stainless Steel construction provides excellent corrosion resistance while maintaining the Rockwell C26 hardness necessary for wear resistance in high-cycle applications. The 5/16" shoulder diameter with precise tolerance ensures perfect bearing surfaces and eliminates component misalignment in automation equipment, conveyor systems, and precision instruments. The Class 2A UNC coarse threads offer reliable engagement in various materials, while the hex socket drive allows for secure tightening in confined spaces. This combination of material properties and dimensional precision makes it ideal for applications requiring repeated disassembly and reassembly without performance degradation.

Specification Summary & Compliance

This shoulder screw features 1/4"-20 UNC Class 2A threads with coarse thread spacing, ensuring standard compatibility and reliable fastening performance. The shoulder maintains precise dimensional control with diameter tolerance of -0.001" to 0" and length tolerance of 0" to 0.002". Manufactured from 416 Stainless Steel with Rockwell C26 hardness and 120,000 psi tensile strength, this component complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations for industrial safety standards.