S-91385A208 M4 x 5 mm DIN 916, ISO 4029 Set Screws

Key Features & Benefits at a Glance

• Vibration-resistant locking with nylon patch thread locker maintains secure fastening in dynamic environments from -50° to 250°F
• Superior corrosion protection through black-oxide coating on alloy steel extends service life in demanding industrial conditions
• Precision thread engagement with Class 5g6g fit ensures reliable mating with components and reduces installation issues
• High-strength construction with Rockwell C45 hardness provides excellent resistance to wear and deformation under load
• Secure cup tip design creates positive contact points on shafts and components to prevent slippage
• Space-saving headless profile allows for flush mounting in confined assemblies while maintaining full fastening capability
• Industry-standard compliance with DIN 916/ISO 4029 specifications guarantees interchangeability and quality assurance

Professional Applications & Engineering Value

This M4 set screw delivers critical vibration resistance in machinery, automation systems, and precision equipment where loosening under operational stress compromises safety and performance. The black-oxide alloy steel construction combined with Rockwell C45 hardness withstands mechanical stresses while resisting environmental degradation. The nylon patch thread locker actively maintains clamping force across temperature fluctuations from -50° to 250°F, eliminating the need for secondary locking mechanisms. With its hex drive and headless design, installation is optimized for tight spaces while the cup tip provides superior bite on shafts and rotating components. These metric coarse thread fasteners meet rigorous DIN 916/ISO 4029 standards for dimensional accuracy in European and international industrial applications.

Specification Summary & Compliance

This M4 x 0.7mm pitch x 5mm length set screw features precision Class 5g6g thread fit according to ISO metric standards with right-hand coarse threading. Manufacturing complies with DIN 916 ISO 4029 specifications for dimensional accuracy and performance. The product is fully RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) (06/14/2023 235 SVHC) Compliant, meeting current environmental regulations for industrial components.