S-93395A251 M4 x 8 mm DIN 7991 Stainless Steel Hex Drive Flat Head Screws
Stainless 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
- Superior corrosion resistance with 316 Stainless Steel material and passivated finish, ideal for harsh environments
- Reliable fastening performance with 70,000 psi tensile strength for demanding industrial applications
- Precise Class 6g thread fit ensures smooth installation and secure connections in metric assemblies
- Easy installation and removal using the 2.5mm hex drive, reducing assembly time and tool slippage
- Flush mounting capability with standard 90° countersink angle and flat head design for sleek, unobtrusive finishes
- Full threading along the 8mm length provides consistent grip and holding power across the entire fastener
- Compliance with DIN 7991 and environmental regulations guarantees quality, safety, and RoHS 3/REACH adherence
Professional Applications & Engineering Value
These M4 flat head screws are engineered to address critical challenges in industrial and mechanical assemblies where corrosion resistance and precision are paramount. Constructed from 316 Stainless Steel with a passivated finish, they excel in moist, chemical, or marine environments, preventing rust and extending service life. The coarse thread with 0.7mm pitch and Class 6g fit ensures quick, reliable engagement in metals and plastics, reducing cross-threading risks. The hex drive and fully threaded design facilitate efficient installation in tight spaces, such as machinery, automotive components, and electronic enclosures, while the flat head with 90° countersink allows for seamless, flush surfaces in visible applications.
Specification Summary & Compliance
This screw adheres to DIN 7991 specifications, featuring M4 x 0.7mm coarse threads with Class 6g tolerance for precise fit. The head diameter is 8mm with a tolerance of -0.36 to 0 mm, and length is 8mm. It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material restrictions are met for industrial use.
