S-91390A703 M4 x 14 mm DIN 916 Set Screws

Key Features & Benefits at a Glance

• Superior holding power with cup point design that bites into mating surfaces for secure, permanent fastening
• Exceptional strength and durability from alloy steel construction with Rockwell C45 hardness rating
• Precise thread engagement with Class 5g6g thread fit ensuring reliable performance in demanding applications
• Easy installation in confined spaces thanks to headless design with 2mm hex drive
• Industry-standard compatibility meeting DIN 916 specifications for consistent quality and interchangeability
• Environmental compliance assurance with RoHS 3 and REACH compliance for global manufacturing requirements
• Optimized for coarse thread applications with M4 x 0.7mm right-hand thread for quick assembly and disassembly

Professional Applications & Engineering Value

This M4 set screw delivers exceptional engineering value in applications requiring permanent positioning of components on shafts, axles, and within assemblies. The alloy steel construction combined with Rockwell C45 hardness provides excellent resistance to vibration loosening and material deformation under load. The cup point design creates concentrated pressure that digs into mating surfaces, preventing rotational movement in high-torque environments. With its headless configuration and 2mm hex drive, this fastener is ideal for space-constrained applications where flush mounting is essential. The metric coarse thread (M4 x 0.7mm) ensures quick installation while maintaining secure fastening in machinery, automotive components, and precision equipment where reliable positioning is critical.

Specification Summary & Compliance

This metric set screw features precise M4 x 0.7mm thread dimensions with Class 5g6g thread fit tolerance according to ISO standards, ensuring consistent performance and interchangeability. Manufactured to DIN 916 specifications for dimensional accuracy and quality assurance. The product is fully RoHS 3 (2015/863/EU) compliant and REACH (EC 1907/2006) compliant, meeting the latest environmental regulations for hazardous substances. The right-hand thread with coarse thread spacing provides optimal engagement for most industrial applications requiring secure fastening solutions.