S-94564A220 1/4"-28 x 5/8" Set Screws

Key Features & Benefits at a Glance

• Exceptional corrosion resistance due to nylon plastic construction, eliminating rust concerns in humid or chemical environments
• Reliable performance across extreme temperatures from -40° to 185°F, maintaining integrity in fluctuating industrial conditions
• Precise Class 2A thread fit ensures secure, vibration-resistant fastening with minimal risk of loosening
• Headless hex drive design allows for flush mounting in tight spaces while providing positive torque application
• RoHS 3 compliance guarantees environmental safety and meets international regulatory standards
• Fine UNF threading delivers superior holding power and resistance to vibrational loosening compared to coarse threads
• Non-conductive and non-magnetic properties make ideal for electrical applications where isolation is critical

Professional Applications & Engineering Value

This nylon plastic set screw with 1/4"-28 UNF fine threading solves critical engineering challenges in applications where metal fasteners would compromise performance. The headless hex drive design enables seamless integration in confined assemblies while the Class 2A thread fit provides consistent engagement without galling or cross-threading. Particularly valuable in electrical enclosures, precision instruments, and temperature-sensitive equipment, this fastener prevents galvanic corrosion when joining dissimilar metals and maintains dimensional stability across its -40° to 185°F operating range. The off-white color offers visual contrast for quality control inspections, while the flat tip ensures maximum surface contact for secure positioning of components on shafts and collars.

Specification Summary & Compliance

Manufactured to UNF thread standards with Class 2A thread fit tolerance for precise engagement. Features 1/4"-28 fine threading with 5/8" length and 1/8" hex drive configuration. The right-hand thread direction and flat tip provide standardized installation. Compliant with RoHS 3 (2015/863/EU) environmental regulations, ensuring restriction of hazardous substances. Manufactured in inch system measurements for compatibility with North American equipment and specifications.