S-91221A975 1/4"-20 x 1" Plastic Socket Head Screws

Key Features & Benefits at a Glance

• Exceptional chemical resistance from glass-filled nylon construction, ideal for harsh industrial environments
• Reliable thermal performance with a wide operating range from -20° to 230° F
• Superior electrical insulation properties for safe use in electrical assemblies
• Precise Class 2A UNC coarse thread fit ensures consistent engagement and reduces cross-threading risks
• Durable 3/16" hex drive design provides secure tool engagement and minimizes stripping
• Full compliance with RoHS 3 and REACH regulations for environmentally responsible sourcing
• Lightweight off-white finish offers corrosion-free performance without metallic contamination

Professional Applications & Engineering Value

Engineered for demanding electrical and industrial applications, these glass-filled nylon socket head cap screws deliver critical advantages where metal fasteners fail. The Class 2A UNC coarse thread configuration ensures rapid installation in plastic and soft materials while maintaining vibration resistance. With inherent chemical resistance and thermal stability (-20° to 230° F), they prevent galvanic corrosion in mixed-material assemblies and maintain integrity in temperature-fluctuating environments. The 3/16" hex drive combined with fully threaded design provides uniform clamping force distribution, making them ideal for enclosures, machinery guards, and electronic housing where electrical insulation and regulatory compliance are mandatory.

Specification Summary & Compliance

Manufactured to inch system standards with precise Class 2A thread fit and UNC coarse thread profile (1/4"-20). These fully threaded right-hand drive screws feature standard socket head profile with 3/8" head diameter and 1" length. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations ensures suitability for global industrial supply chains.