S-99602A320 M4 x 12 mm Plastic Hex Head Screws

Key Features & Benefits at a Glance

• Excellent corrosion resistance due to durable Nylon material, ideal for harsh environments without risk of rust or degradation.
• Secure and reliable fastening with Class 6g thread fit, ensuring precise engagement and reduced risk of loosening in vibration-prone applications.
• Easy installation and removal thanks to the external hex head design, allowing for standard tools and quick assembly in tight spaces.
• Broad temperature tolerance from -40° to 185°F, maintaining performance in varied thermal conditions without compromising integrity.
• Electrical insulation properties of Nylon plastic, making it safe for use in electronic and electrical assemblies to prevent short circuits.
• Lightweight and non-conductive construction, reducing overall weight and eliminating galvanic corrosion in mixed-material setups.
• Environmental compliance with RoHS 3 standards, ensuring safe, lead-free use in regulated industries and global markets.

Professional Applications & Engineering Value

Engineered for demanding sectors, this M4 nylon hex head screw addresses common industrial challenges such as corrosion, electrical hazards, and weight constraints. The black Nylon plastic construction provides inherent resistance to moisture, chemicals, and UV exposure, prolonging service life in outdoor or humid settings like automotive under-hood components and electrical enclosures. Its fully threaded metric coarse thread with 0.7mm pitch and Class 6g thread fit ensures rapid installation and high clamping force, reducing assembly time while preventing cross-threading. The external hex drive offers superior torque transmission, ideal for automated or manual fastening in confined spaces. By combining temperature resistance from -40° to 185°F with electrical insulation, this screw eliminates the need for additional coatings or isolators, cutting costs in industrial machinery, consumer electronics, and marine applications where durability and safety are paramount.

Specification Summary & Compliance

This screw adheres to metric coarse thread standards with M4 x 0.7mm dimensions and a length of 12mm, featuring Class 6g thread fit for consistent accuracy and interchangeability. It is manufactured from Nylon plastic with a black finish and fully threaded design, ensuring reliable performance across the specified temperature range. Compliance includes RoHS 3 (2015/863/EU), confirming it is free from hazardous substances and suitable for global regulatory requirements in electronics and general industrial use.