S-93897A448 1/4"-20 Shoulder Screws

Key Features & Benefits at a Glance

• Corrosion-resistant Nylon 6/6 construction eliminates rust issues and ensures reliable performance in humid or chemical environments
• Precision 1" shoulder length with tight tolerances provides accurate component alignment and smooth rotational movement in assemblies
• Class 2A thread fit with 1/4"-20 UNC coarse threads enables quick installation and secure fastening in various materials
• Wide temperature resistance from -40° to 185°F maintains structural integrity across diverse operating conditions
• Socket head with 5/32" hex drive allows for high-torque installation and removal in confined spaces
• RoHS 3 compliance ensures environmental responsibility and meets international regulatory standards
• Smooth shoulder surface minimizes wear on mating components and extends service life

Professional Applications & Engineering Value

This Nylon 6/6 plastic shoulder screw delivers exceptional engineering value in applications where metal fasteners would introduce conductivity, corrosion, or weight concerns. The 1" shoulder length with precise diameter control serves as an ideal pivot point or spacer in machinery, electrical enclosures, and conveyor systems. The 1/4"-20 UNC coarse threads provide excellent holding power in plastic and soft materials while resisting vibration-induced loosening. As an electrical insulator with corrosion-resistant properties, this shoulder screw solves critical challenges in electronics manufacturing, food processing equipment, and marine applications where metallic contamination or degradation must be avoided. The combination of right-hand threading and hex socket drive ensures straightforward installation in automated assembly processes.

Specification Summary & Compliance

This precision fastener features Class 2A thread fit per UNC standards with a shoulder diameter tolerance of -0.012" to -0.002" and shoulder length tolerance of -0.015" to 0.015". Manufactured from Nylon 6/6 plastic with standard socket head profile and smooth shoulder texture. The product is fully RoHS 3 (2015/863/EU) compliant, meeting international environmental regulations for restricted substances. Thread specifications conform to UNC coarse thread standards with right-hand direction and 7/16" thread length, ensuring compatibility with industry-standard components and assembly requirements.