S-90557A130 M2 x 4 mm DIN 925 Steel Slotted Flat Head Screws
Steel Slotted Flat 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
- Enhanced corrosion resistance with black-oxide steel coating for prolonged service life in harsh industrial environments.
- Superior holding power from 60,000 psi tensile strength and Rockwell B71 hardness, ensuring reliable fastening under stress.
- Efficient installation and flush finish with a standard 90° countersink angle and flat head design for seamless surface integration.
- Quick assembly with coarse threading and fully threaded shank, reducing application time while maintaining Class 6g thread fit precision.
- Extended tip design for easier alignment and starting in pre-tapped holes or tight spaces.
- Broad compatibility with metric M2 x 0.4mm coarse thread systems, ideal for machinery and equipment requiring DIN 925 standards.
- Regulatory peace of mind with RoHS 3 and REACH compliance, meeting strict environmental and safety guidelines for industrial use.
Professional Applications & Engineering Value
These M2 flat head screws are engineered to address common industrial challenges, such as vibration loosening and corrosion in machinery assemblies. Made from black-oxide steel, they offer excellent durability and resistance to wear, making them suitable for automotive, electronics, and precision equipment applications. The fully threaded design with a coarse pitch ensures rapid installation and strong grip in materials like metal or plastic, while the slotted drive allows for straightforward manual or automated tightening. By adhering to DIN 925 specifications, these screws provide consistent performance, reducing maintenance needs and enhancing operational reliability in demanding environments.
Specification Summary & Compliance
This screw features a metric M2 x 0.4mm thread with Class 6g tolerance for precise fit, a 4mm length with extended tip, and a 90° countersink angle. It complies with DIN 925 manufacturing standards and is certified to meet RoHS 3 (2015/863/EU) with exemption 6(a) and REACH (EC 1907/2006) regulations, ensuring environmental and safety adherence for industrial use.
