S-93395A309 M5 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
- Superior corrosion resistance with 316 stainless steel construction and passivated finish for extended service life in harsh environments
- Precise flush mounting with standard flat head profile and 90° countersink angle for seamless surface integration
- High mechanical strength delivering 70,000 psi tensile strength for reliable fastening in demanding applications
- Secure hex drive engagement with 3mm drive size preventing cam-out during installation
- Consistent thread performance through Class 6g tolerance and coarse thread spacing for easier assembly
- Full thread coverage along the 18mm length ensuring maximum grip and load distribution
- Regulatory compliance meeting DIN 7991 specifications and environmental standards including RoHS 3 and REACH
Professional Applications & Engineering Value
These M5 flat head screws deliver critical engineering advantages where corrosion resistance and flush surface requirements intersect. The 316 stainless steel composition combined with passivated finish provides exceptional protection against chemical exposure and atmospheric corrosion, making them ideal for marine equipment, food processing machinery, and chemical plant applications. The fully threaded design with coarse thread spacing ensures rapid installation and superior holding power in both soft and hard materials. The hex drive configuration prevents stripping during high-torque applications, while the standardized DIN 7991 dimensions guarantee interchangeability and reliable performance in industrial assemblies requiring precise flush mounting.
Specification Summary & Compliance
Manufactured to DIN 7991 specifications with Class 6g thread fit tolerance ensuring precise dimensional accuracy. The metric thread system features M5 x 0.8mm coarse pitch with right-hand threading. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, confirming adherence to hazardous substance restrictions. Head diameter maintains -0.36 to 0 mm tolerance for consistent countersink performance.
