S-99642A145 M8 x 25 mm DIN 916, ISO 4029 Set Screws

Key Features & Benefits at a Glance

• Superior holding power from high-strength alloy steel construction, ensuring reliable fastening in demanding applications.
• Exceptional wear resistance due to Rockwell C45 hardness, providing long-term durability and reduced replacement frequency.
• Precise and secure fit with Class 5g6g thread tolerance, minimizing the risk of loosening under vibration or load.
• Space-saving headless design with a 4 mm hex drive, ideal for applications with limited clearance and requiring flush mounting.
• Enhanced grip and minimal surface damage from the cup tip, which concentrates force for superior clamping without marring components.
• Guaranteed interchangeability and quality through compliance with DIN 916 and ISO 4029 international standards.
• Safe for sensitive environments as it is RoHS 3 and REACH compliant, meeting strict environmental and health regulations.

Professional Applications & Engineering Value

This M8 x 1 mm fine thread set screw is engineered to address critical challenges in precision assembly and machinery. The alloy steel material, hardened to Rockwell C45, provides the necessary strength to resist shear forces and fatigue in high-stress applications like motor mounts, gear assemblies, and precision tooling. The headless hex drive design allows for installation in confined spaces where a protruding head is not feasible, while the fine thread with a 1 mm pitch offers a higher number of threads per unit length, resulting in improved adjustment precision and superior resistance to loosening under dynamic loads. The cup tip ensures a concentrated point of contact, increasing clamping force and reducing the risk of damaging the mating surface. Ideal for use in automotive, aerospace, and industrial equipment, this screw delivers reliable performance where exact alignment and secure fastening are paramount.

Specification Summary & Compliance

This set screw features an M8 metric thread with a 1 mm fine pitch and Class 5g6g thread fit, ensuring high dimensional accuracy and interchangeability. It conforms to the DIN 916 and ISO 4029 manufacturing standards, guaranteeing consistent quality and performance. The product is RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, adhering to environmental and safety regulations for hazardous substances.