S-91210A440 M8 x 30 mm DIN 914, ISO 4027 Set Screws

Key Features & Benefits at a Glance

• Enhanced holding power with a 90° cone point that bites into materials for secure, permanent fastening in high-vibration environments
• Superior strength and durability from alloy steel construction and Rockwell C45 hardness, resisting wear and deformation under heavy loads
• Reliable coarse threading (M8 x 1.25mm) ensures quick installation and robust performance in softer materials or where frequent adjustments aren't needed
• Precise Class 5g6g thread fit guarantees consistent engagement and reduces the risk of cross-threading for smoother assembly
• Space-saving headless design with 4mm hex drive allows for flush mounting in confined spaces while providing ample torque application
• Compliance with DIN 914 and ISO 4027 standards ensures dimensional accuracy, interchangeability, and reliable performance in industrial applications
• Environmental and safety assurance with RoHS 3 and REACH compliance, making it suitable for regulated industries and global supply chains

Professional Applications & Engineering Value

This M8 set screw is engineered to address critical challenges in precision assembly and machinery. The alloy steel material, combined with Rockwell C45 hardness, provides exceptional resistance to shear forces and fatigue, making it ideal for heavy-duty applications like motor shafts, gear assemblies, and precision tooling. The 90° cone point concentrates pressure on a small area, preventing component slippage and maintaining alignment in high-stress environments. With its coarse metric thread and Class 5g6g fit, it ensures rapid installation and reliable performance in dynamic systems, reducing maintenance downtime. Fully compliant with DIN 914 and ISO 4027, this hex headless screw delivers consistent quality for OEM and MRO needs across automotive, aerospace, and industrial equipment sectors.

Specification Summary & Compliance

This set screw features precise M8 x 1.25mm coarse threading with Class 5g6g thread fit per ISO metric standards, ensuring dimensional accuracy and ease of assembly. It is manufactured in accordance with DIN 914 and ISO 4027 specifications, guaranteeing consistent performance and interchangeability. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, supporting safe and sustainable use in global markets.