S-91420A250 M4 x 40 mm DIN 965 Steel Phillips Flat Head Screws
Steel Phillips 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
- Enhanced corrosion resistance with zinc-plated steel construction for extended service life in demanding environments
- Superior holding power from 60,000 psi tensile strength and Rockwell B71 hardness for reliable fastening in industrial applications
- Precision thread engagement with Class 6h fit and coarse M4x0.7 threading ensuring consistent performance and vibration resistance
- Streamlined installation through Phillips No. 2 drive and standard 90° countersink for flush mounting without specialized tools
- Full-threaded design providing maximum grip length and uniform stress distribution across the entire 40mm length
- Regulatory compliance meeting DIN 965 specifications and environmental standards (RoHS 3, REACH) for global industrial use
- Optimized head geometry with 7.5mm diameter and 2.2mm height delivering secure seating and clean aesthetic finish
Professional Applications & Engineering Value
These M4 flat head screws deliver exceptional engineering value in industrial assembly where flush mounting and corrosion resistance are critical. The zinc-plated steel construction protects against environmental degradation while maintaining 60,000 psi tensile strength for high-stress applications. The fully threaded metric design with coarse pitch ensures rapid installation and superior pull-out resistance in materials ranging from metal fabrications to industrial equipment. The standard 90° countersink and Phillips No. 2 drive provide secure, recessed fastening that eliminates protrusions in machinery, automotive components, and electrical enclosures where smooth surfaces are mandatory for safety and functionality.
Specification Summary & Compliance
Manufactured to DIN 965 standards with Class 6h thread fit precision and metric M4x0.7 coarse threading. The screws feature right-hand thread direction and 40mm full thread length with dimensional accuracy maintained through production. Compliance certifications include RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental responsibility and material safety for industrial distribution and use across global markets.
