S-91290A474 M8 x 130 mm DIN 912, ISO 4762 Alloy Steel Socket Head Screws

Key Features & Benefits at a Glance

• Exceptional tensile strength of 170,000 psi ensures reliable performance in high-stress applications, reducing failure risks.
• Superior corrosion resistance from the black-oxide finish on alloy steel extends service life in harsh industrial environments.
• High hardness rating of Rockwell C37 provides excellent wear resistance and durability under repetitive loads.
• Precision Class 5g6g thread fit guarantees smooth assembly and secure fastening with minimal play.
• Partially threaded design allows for optimal grip and clamping force in varied material thicknesses.
• Standard hex socket drive with 6mm size enables easy installation and removal with common tools, reducing labor time.
• Compliance with DIN 912/ISO 4762 standards ensures consistent quality and interchangeability in global engineering projects.

Professional Applications & Engineering Value

This M8 socket head cap screw is engineered to address critical challenges in heavy-duty machinery, automotive assemblies, and structural frameworks. The black-oxide alloy steel construction combats rust and oxidation, ideal for environments exposed to moisture or chemicals. With a coarse thread pitch of 1.25mm and Class 12.9 strength, it resists vibration loosening and maintains clamp load under dynamic stresses. The partially threaded rod design concentrates force where needed, preventing joint slippage in high-torque applications. By meeting DIN 912/ISO 4762 specifications, it ensures dimensional accuracy and reliability, reducing downtime and maintenance costs in industrial operations.

Specification Summary & Compliance

This metric socket head cap screw features M8 x 1.25mm coarse threads with a Class 5g6g thread fit for precise tolerance. It adheres to DIN 912/ISO 4762 manufacturing standards, ensuring consistent dimensions and performance. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, guaranteeing safety and environmental responsibility in industrial use.