S-91221A711 10-24 x 1/4" UL 94 HB Plastic Socket Head Screws

Key Features & Benefits at a Glance

• Exceptional temperature resistance for reliable performance in environments ranging from -20° to 230° F, ideal for applications with thermal cycling
• Superior corrosion resistance due to glass-filled nylon construction, eliminating rust and chemical degradation in harsh conditions
• Precise Class 2A thread fit ensures smooth installation and secure fastening with consistent engagement in UNC coarse threaded holes
• Durable off-white color and material maintains appearance and structural integrity without painting or additional coatings
• Hex socket drive design allows for high-torque application with standard 5/32" tools, reducing strip-out risk
• Full threading along the 1/4" length provides maximum grip and adjustability in assembled components
• Compliance with UL 94 HB, RoHS 3, and REACH guarantees safety and environmental standards for global industrial use

Professional Applications & Engineering Value

Engineered for demanding settings, these glass-filled nylon socket head cap screws deliver consistent performance where metal fasteners fail. The UNC coarse threading and Class 2A fit prevent cross-threading and enable quick assembly in plastics, electronics, and machinery. With a temperature range of -20° to 230° F, they are ideal for automotive under-hood components, electrical enclosures, and food processing equipment, offering electrical insulation and resistance to oils, solvents, and moisture. The off-white color and fully threaded design ensure aesthetic compatibility and full-length holding power, reducing the need for secondary operations and minimizing maintenance in corrosive or non-conductive applications.

Specification Summary & Compliance

This 10-24 UNC socket head cap screw adheres to precise dimensional standards, including a Class 2A thread fit for consistent tolerance and a 5/32" hex drive for secure tool engagement. Manufactured from glass-filled nylon plastic, it meets UL 94 HB flammability requirements and is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring safe use in international markets. The right-hand coarse thread and 1/4" length provide reliable fastening per industry specifications.