S-93395A261 M4 x 18 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
- Exceptional corrosion resistance from 316 stainless steel with passivated finish, ideal for harsh industrial environments
- Reliable high-strength performance with 70,000 psi tensile strength for demanding mechanical applications
- Secure, slip-resistant installation using the 2.5mm hex drive that provides superior torque transfer
- Precision thread engagement with Class 6g tolerance and coarse pitch for faster assembly and vibration resistance
- Flush mounting capability with standard 90° countersink angle flat head design for smooth surface finishes
- Full thread coverage along the 18mm length ensures maximum grip strength in various material thicknesses
- Regulatory compliance assurance meeting DIN 7991, RoHS 3, and REACH standards for global industrial use
Professional Applications & Engineering Value
These M4 metric screws with 316 stainless steel construction and passivated finish deliver critical corrosion protection in challenging environments including marine, chemical processing, and food equipment applications. The flat head design with hex drive provides flush mounting while preventing tool slippage during high-torque installation. With coarse thread pitch and Class 6g tolerance, these fully threaded screws offer rapid assembly and superior vibration resistance in metal fabrication, machinery, and structural components. The combination of 70,000 psi tensile strength and standardized DIN 7991 dimensions ensures reliable performance in precision engineering applications where material compatibility and long-term durability are paramount.
Specification Summary & Compliance
This M4 x 0.7mm x 18mm flat head screw maintains precision Class 6g thread fit according to metric standards with 8mm head diameter (-0.36 to 0 mm tolerance) and 2.3mm head height. Manufactured to DIN 7991 specifications with right-hand thread direction and 90° countersink angle. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations for environmental safety and restricted substance control.
