S-93897A464 1/4"-20 Shoulder Screws

Key Features & Benefits at a Glance

• Corrosion-resistant Nylon 6/6 construction eliminates rust and galvanic corrosion in harsh environments, ensuring long-term reliability
• Precision UNC coarse threading provides faster assembly and reduced cross-threading risk for improved production efficiency
• Durable 1 1/2" shoulder length offers stable bearing surfaces and precise component alignment in rotating assemblies
• Wide temperature tolerance (-40° to 185° F) maintains structural integrity across diverse operating conditions
• Hex socket drive design enables high-torque installation with standard tools while preventing head stripping
• Class 2A thread fit ensures consistent, reliable engagement with mating components
• RoHS 3 compliance meets international environmental standards for restricted substances

Professional Applications & Engineering Value

This Nylon 6/6 plastic shoulder screw delivers exceptional engineering value in applications requiring electrical insulation, chemical resistance, and weight reduction. The 1/4"-20 UNC coarse thread configuration provides superior assembly speed while the 7/16" thread length ensures secure fastening in various material thicknesses. The smooth shoulder surface and precise diameter tolerances enable smooth rotational movement in bearings, pulleys, and linkages without additional bushings. Ideal for electrical enclosures, food processing equipment, and marine applications, this fastener eliminates metal contamination concerns while offering excellent dielectric properties. The hex socket drive accommodates high installation torque without compromising the polymer structure, making it suitable for automated assembly systems.

Specification Summary & Compliance

This shoulder screw features Class 2A thread fit per UNC standards with precise 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 right-hand coarse threading and standard shoulder fit. The product is fully RoHS 3 (2015/863/EU) compliant and operates within -40° to 185° F temperature range, making it suitable for various industrial applications requiring environmental regulation adherence.