S-90729A369 M5 x 20 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 with 316 Stainless Steel construction and passivated finish, ideal for harsh environments
- High tensile strength of 70,000 psi ensures reliable fastening under demanding mechanical loads
- Precise Class 6g thread fit guarantees smooth installation and secure mating with compatible nuts
- Undercut flat head design with 100° countersink provides a flush, low-profile finish for streamlined assemblies
- 3mm hex drive allows for high-torque installation with standard tools, reducing slippage risks
- Full threading along the 20mm length offers maximum grip and adjustability in various material thicknesses
- Compliance with RoHS 3 and REACH regulations ensures environmental safety and global market acceptance
Professional Applications & Engineering Value
Engineered for industrial and marine settings, this M5 flat head screw in 316 Stainless Steel addresses critical challenges like corrosion, vibration loosening, and high-stress fatigue. The passivated finish enhances surface durability against chemicals and moisture, while the coarse metric thread (M5x0.8) and Class 6g tolerance ensure rapid, precise assembly in metal, plastic, or composite substrates. Its undercut head profile minimizes protrusion in countersunk holes, making it ideal for machinery, enclosures, and structural frameworks where flush mounting and high tensile strength are paramount for long-term reliability.
Specification Summary & Compliance
This fully threaded metric screw adheres to standard dimensions: M5 thread size, 0.8mm pitch, 20mm length, and head diameter tolerance of -0.127 to 0.127 mm. Threads conform to Class 6g fit for consistent engagement, and the screw meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, ensuring it is free of restricted hazardous substances. Manufactured to precise engineering standards, it supports applications requiring corrosion-resistant and high-strength fastening solutions.
