S-91304A105 M3 x 20 mm DIN 7991, ISO 10642 Alloy Steel Hex Drive Flat Head Screws
Alloy Steel Hex Drive 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
- Exceptional corrosion resistance with blue-dyed zinc plating, ideal for harsh industrial environments
- High tensile strength of 120,000 PSI ensures reliable performance under heavy loads and vibrations
- Class 10.9 strength grade provides superior durability for critical fastening applications
- Fully threaded M3 design with 0.5mm coarse pitch enables quick installation and secure holding power
- 2mm hex drive and flat head allows for flush mounting and easy torque application in confined spaces
- Rockwell C32 hardness maintains thread integrity and prevents stripping during repeated use
- Compliance with DIN 7991/ISO 10642 standards guarantees dimensional accuracy and interchangeability
Professional Applications & Engineering Value
These M3 flat head screws are engineered with blue-dyed zinc-plated alloy steel to address common industrial challenges such as corrosion in humid or chemical-exposed environments. The fully threaded metric coarse pitch design ensures maximum grip in materials like metal, plastic, and composites, reducing the risk of loosening under dynamic loads. With a Class 10.9 strength rating and Rockwell C32 hardness, they provide reliable fastening in high-stress applications including machinery assembly, automotive components, and electronic enclosures. The flat head with 90° countersink angle allows for seamless surface integration, minimizing protrusions in precision equipment. Ideal for B2B procurement, these screws deliver consistent performance in industrial applications requiring high-strength and compliance with international standards.
Specification Summary & Compliance
This M3 x 0.5mm x 20mm screw features Class 6g thread fit for precise metric threading and adheres to DIN 7991/ISO 10642 manufacturing specifications. It meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance for environmental safety, ensuring suitability for global industrial supply chains.
