S-91390A108 M3 x 20 mm DIN 916, ISO 4029 Set Screws
Set Screws
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
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Key Features & Benefits at a Glance
- Superior holding power with cup tip design that bites into mating surfaces for permanent, vibration-resistant fastening
- Exceptional durability from alloy steel construction with Rockwell C45 hardness to withstand high-stress applications
- Precision thread engagement with Class 5g6g thread fit ensuring reliable performance in demanding industrial environments
- Easy installation in confined spaces thanks to headless hex drive design with 1.5 mm drive size
- Optimized for quick assembly with coarse 0.5 mm pitch right-hand threads that reduce installation time
- Global compliance assurance meeting DIN 916/ISO 4029 standards for consistent quality across international projects
- Environmentally responsible manufacturing with full RoHS 3 and REACH compliance for sustainable operations
Professional Applications & Engineering Value
This M3 set screw delivers critical engineering solutions where space constraints and vibration resistance are paramount. The alloy steel construction with Rockwell C45 hardness provides exceptional shear strength for permanent fastening in machinery, automotive components, and precision equipment. The cup tip design creates superior biting action into shafts and collars, preventing rotational slip under dynamic loads. With Class 5g6g thread fit and coarse 0.5 mm pitch, installation is both precise and efficient, reducing assembly time while maintaining metric thread integrity. The headless hex drive configuration allows flush mounting in tight spaces where conventional fasteners cannot operate, making it ideal for adjustable components, pulley systems, and gear assemblies requiring reliable positioning without protrusion.
Specification Summary & Compliance
This metric set screw features precise M3 x 0.5 mm coarse threading with Class 5g6g thread fit tolerance per ISO standards. Manufactured to DIN 916 ISO 4029 specifications ensuring dimensional accuracy and performance consistency. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, confirming adherence to international substance restrictions for industrial applications.
