S-91390A604 M3 x 30 mm DIN 916, ISO 4029 Set Screws

Key Features & Benefits at a Glance

• Superior holding power with cup tip design that bites into materials for permanent, vibration-resistant fastening
• Exceptional durability from Rockwell C45 hardened alloy steel construction that withstands heavy loads and repeated use
• Precise thread engagement with Class 5g6g thread fit ensuring reliable performance in demanding applications
• Easy installation in confined spaces thanks to headless design and 1.5mm hex drive requiring minimal clearance
• Industry-standard compatibility meeting DIN 916/ISO 4029 specifications for consistent quality and interchangeability
• Environmental compliance with RoHS 3 and REACH regulations for safe use in regulated industries
• Quick assembly with coarse thread spacing that reduces installation time while maintaining secure fastening

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 securing pulleys, gears, and collars on shafts in machinery and automotive applications. The cup tip design creates concentrated pressure points that dig into mating surfaces, preventing rotational slippage under high torque conditions. The headless configuration with hex drive allows installation in recessed locations where traditional screw heads would interfere. Meeting DIN 916/ISO 4029 standards, this metric set screw ensures precise dimensional consistency for reliable performance in precision equipment, manufacturing jigs, and industrial automation systems where component alignment must remain uncompromised.

Specification Summary & Compliance

This set screw features M3 x 0.5mm coarse thread with Class 5g6g thread fit per ISO metric standards, providing optimal clearance for industrial applications. The 30mm length offers versatile fastening depth while maintaining structural integrity. Manufacturing complies with DIN 916 ISO 4029 specifications for dimensional accuracy and performance. The product is RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting current environmental regulations for hazardous substance restrictions.