S-91210A098 M3 x 4 mm DIN 914, ISO 4027 Set Screws

Key Features & Benefits at a Glance

• Exceptional holding power with a 90° cone point that bites into mating surfaces, preventing component slippage under vibration
• Superior material strength and durability from alloy steel heat-treated to Rockwell C45 hardness, resisting wear and deformation
• Secure and reliable installation with a compact 1.5mm hex drive, ideal for tight spaces and providing high torque transfer
• Precision-engineered thread fit (Class 5g6g) ensures smooth assembly and consistent clamping force in coarse pitch applications
• Headless, flush-mount design allows for unobtrusive fastening in assemblies where protruding components are not permissible
• Full compliance with international standards including DIN 914 and ISO 4027, guaranteeing interchangeability and quality
• Environmentally responsible manufacturing meeting RoHS 3 and REACH regulations for use in regulated industries

Professional Applications & Engineering Value

This M3 set screw is engineered to solve critical challenges in precision assemblies. The alloy steel construction and Rockwell C45 hardness provide the necessary strength to resist loosening under dynamic loads and vibrational stress, a common failure point in machinery and electronics. The 90° cone point is specifically designed to create a permanent, high-friction lock on shafts, gears, and collars, eliminating the need for additional locking mechanisms. Combined with the hex drive and headless design, it offers a reliable, low-profile fastening solution for applications in automotive components, industrial robotics, and precision instruments where space is constrained and performance is non-negotiable.

Specification Summary & Compliance

This metric set screw conforms to the dimensional and tolerance requirements of DIN 914 and ISO 4027. The M3 x 0.5mm coarse thread is manufactured to a Class 5g6g thread fit, ensuring precision and compatibility. The product is verified to be RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, affirming its adherence to stringent environmental and safety regulations for industrial use.