S-91290A099 M2.5 x 4 mm DIN 912, ISO 4762 Alloy Steel Socket Head Screws
Alloy Steel Socket Head 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
- Exceptional tensile strength of 170,000 PSI ensures reliable performance in high-stress applications, reducing the risk of fastener failure.
- 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, maintaining thread integrity over repeated use.
- Precise Class 5g6g thread fit with coarse threading (0.45mm pitch) allows for quick, secure assembly and reduced cross-threading issues.
- Compact 4mm length and 2mm hex drive offer easy installation in tight spaces with standard tools, improving assembly efficiency.
- Full compliance with DIN 912/ISO 4762 standards guarantees dimensional accuracy and interchangeability for global engineering projects.
- RoHS 3 and REACH compliance ensures environmental safety and regulatory adherence for diverse industrial sectors.
Professional Applications & Engineering Value
This M2.5 socket head cap screw is engineered from black-oxide alloy steel to address common industrial challenges like vibration loosening and corrosion in machinery, automotive, and electronics assemblies. The Class 12.9 strength rating and fully threaded design provide uniform load distribution, preventing joint failure under dynamic stresses. With a coarse thread pitch of 0.45mm and right-hand threading, it ensures rapid installation and high resistance to stripping, making it ideal for high-volume production lines. The socket head with a 2mm hex drive allows for precise torque application in confined spaces, enhancing reliability in critical applications such as precision instruments and heavy-duty equipment.
Specification Summary & Compliance
This metric screw adheres to DIN 912/ISO 4762 specifications, featuring a Class 5g6g thread fit for consistent dimensional accuracy. It meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, ensuring it is free from hazardous substances. The fully threaded rod and standard socket head profile support reliable performance in regulated industrial environments.
