S-90729A266 M4 x 8 mm 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 in harsh environments thanks to 316 Stainless Steel construction with passivated finish
- Precise, reliable installation with Class 6g thread fit ensuring consistent mating and reduced cross-threading risks
- High mechanical strength with 70,000 psi tensile strength and Rockwell B70 hardness for demanding applications
- Secure, flush mounting featuring a 100° countersink angle and undercut flat head design
- Efficient installation and removal with 2.5mm hex drive preventing cam-out and tool slippage
- Full thread engagement along the 8mm length for maximum holding power in thin materials
- Regulatory compliance assurance meeting RoHS 3 and REACH standards for global industrial use
Professional Applications & Engineering Value
This M4 flat head screw delivers exceptional performance in corrosive and high-stress environments where reliability is critical. The 316 Stainless Steel material combined with passivated finish provides superior protection against chemical exposure, saltwater, and industrial atmospheres, making it ideal for marine equipment, chemical processing plants, and food processing machinery. The hex drive design ensures positive torque transmission during installation, while the 100° countersink angle and undercut head profile create a flush surface finish that eliminates protrusions in precision assemblies. With Class 6g thread fit precision and fully threaded design, these metric screws maintain consistent clamping force in applications from electronic enclosures to structural frameworks.
Specification Summary & Compliance
This metric flat head screw features M4 x 0.7mm coarse threading with Class 6g thread fit tolerance, 8mm length, and precise head diameter tolerance of -0.127 to 0.127 mm. Manufactured from 316 Stainless Steel with passivated finish, it meets Rockwell B70 hardness and 70,000 psi tensile strength requirements. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and regulatory acceptance for industrial applications worldwide.
