S-90236A137 M4 x 30 mm ISO 14581 Alloy Steel Torx Flat Head Screws
Alloy Steel Torx 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 zinc-plated alloy steel construction for extended service life in harsh environments
- High-strength Class 8.8 rating ensures reliable performance under significant mechanical stress and vibration
- Enhanced torque transmission with T20 Torx drive for reduced cam-out and secure installation
- Precise flush mounting thanks to standard 90° flat head profile and full threading for consistent seating
- Optimized for quick assembly with coarse M4x0.7mm threads providing faster driving in various materials
- Consistent dimensional accuracy with Class 6h thread fit ensuring reliable mating with standard nuts
- Global compliance assurance meeting ISO 14581 specifications and environmental regulations including RoHS 3 & REACH
Professional Applications & Engineering Value
Engineered for demanding industrial applications, these M4 flat head screws deliver exceptional value in machinery assembly, automotive components, and electronic enclosures. The zinc-plated alloy steel construction provides essential corrosion protection where exposure to moisture or chemicals is concern, while the Class 8.8 strength rating (equivalent to 116,000 PSI) ensures structural integrity under dynamic loads. The Torx T20 drive system eliminates stripping issues common with Phillips heads, reducing installation errors and maintenance downtime. With fully threaded coarse pitch design, these metric screws achieve superior holding power in both metallic and composite materials, making them ideal for production lines requiring speed and reliability.
Specification Summary & Compliance
This fastener maintains Class 6h thread tolerance per ISO metric standards with M4x0.7mm coarse threads and 30mm fully threaded length. Manufacturing complies with ISO 14581 dimensional specifications for flat head screws. The product meets RoHS 3 (2015/863/EU) restrictions on hazardous substances and REACH (EC 1907/2006) compliance for chemical safety. Material hardness is certified at Rockwell C22, consistent with Class 8.8 mechanical properties requirements.
