S-91430A156 M1.4 x 4 mm DIN 963 Stainless Steel Slotted Flat Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction and passivated finish, ensuring long-term reliability in harsh environments.
• Precise flush mounting thanks to the standard flat head profile and 90° countersink angle, ideal for applications requiring a smooth surface finish.
• Excellent thread engagement with Class 6g thread fit and coarse pitch (0.3 mm), providing secure fastening and reduced risk of cross-threading.
• High tensile strength of 70,000 psi, offering dependable performance in demanding mechanical assemblies.
• Broad compliance with DIN 963 standards, ensuring dimensional accuracy and interchangeability in metric applications.
• Environmental and safety adherence through RoHS 3 and REACH compliance, meeting strict regulatory requirements for hazardous substances.
• Simple installation with slotted drive design, allowing for easy manual or automated driving with standard tools.

Professional Applications & Engineering Value

This M1.4 metric flat head screw is engineered to address critical needs in precision assemblies where space is limited and corrosion resistance is paramount. Made from 18-8 stainless steel and featuring a passivated finish, it effectively combats oxidation and chemical exposure, making it ideal for electronics, medical devices, and automotive components. The fully threaded design and Class 6g thread fit ensure consistent clamping force and vibration resistance, while the flat head with 90° countersink allows for seamless integration into surfaces, preventing protrusions. Its compliance with DIN 963 guarantees reliable performance in metric-based engineering projects, reducing assembly errors and enhancing product longevity.

Specification Summary & Compliance

This screw adheres to DIN 963 specifications, with a Class 6g thread fit for precise metric threading and a coarse pitch of 0.3 mm. It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring no hazardous substances are used. The dimensions include a thread size of M1.4, length of 4 mm, head diameter of 2.6 mm, and a standard flat head profile, all manufactured to meet industrial standards for durability and safety.