S-91970A708 1/2"-13 x 1/2" Plastic Hex Head Screws

Key Features & Benefits at a Glance

• Excellent corrosion resistance due to nylon construction, ideal for harsh environments without rust or galvanic corrosion
• Broad temperature tolerance from -40°F to 185°F ensures reliable performance in varied operating conditions
• Secure and precise fastening with Class 2A thread fit and UNC coarse threads for easier alignment and vibration resistance
• High torque application capability through the external hex drive and 3/4" head width for strong, stable tightening
• Full threading along the 1/2" length maximizes grip and load distribution in assemblies
• Lightweight and non-conductive nylon material reduces overall weight and eliminates electrical conductivity risks
• Environmental compliance with RoHS 3 standards, safe for use in regulated industrial and electronic applications

Professional Applications & Engineering Value

This 1/2"-13 UNC nylon hex head screw is engineered to address common industrial challenges like moisture exposure, chemical corrosion, and electrical insulation needs. The black nylon plastic material provides inherent resistance to rust, oils, and many solvents, making it suitable for outdoor equipment, marine components, and electrical enclosures where metal fasteners would fail. With a coarse thread design and external hex drive, installation is quick and secure, reducing assembly time while maintaining Class 2A thread fit accuracy. Its fully threaded shank ensures uniform stress distribution, enhancing joint integrity in plastic or composite materials commonly used in automotive, HVAC, and consumer electronics. The temperature range supports stability from freezing to elevated heat, offering a durable, non-magnetic fastening solution for demanding B2B applications.

Specification Summary & Compliance

This screw adheres to UNC coarse thread standards with a 1/2"-13 thread size and Class 2A thread fit for precise dimensional tolerance. It is manufactured from high-quality nylon plastic and features a fully threaded design with a hex head for external drive compatibility. Compliance includes RoHS 3 (2015/863/EU), ensuring it meets strict environmental regulations for hazardous substance restrictions, suitable for global industrial and electronic uses.