S-91280A254 M5 x 70 mm ISO 4014, DIN 931 Medium-Strength Metric Class 8.8 Steel Hex Head Screws
Medium-Strength Metric Class 8.8 Steel Hex 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 plating that protects against rust in demanding industrial environments
- High tensile strength of 110,000 psi ensures reliable performance in structural and heavy-duty applications
- Class 8.8 strength grade provides excellent load-bearing capacity for critical connections
- Coarse metric threading (M5 x 0.8 mm) enables faster installation and reduced cross-threading risks
- External hex drive design allows for high torque application with standard tools
- Precision Class 6h thread fit guarantees consistent engagement and vibration resistance
- Environmental compliance with RoHS 3 and REACH standards for sustainable manufacturing
Professional Applications & Engineering Value
This Class 8.8 steel hex head screw delivers exceptional engineering value through its optimized material properties and structural design. The M5 coarse thread configuration combined with Rockwell C21 hardness provides superior resistance to stripping and deformation under load, making it ideal for machinery assembly, structural frameworks, and automotive applications. The zinc-plated finish offers reliable corrosion protection in humid or outdoor environments, while the partial threading design ensures optimal clamping force distribution. Engineered to ISO 4014 specifications (equivalent to DIN 931), this metric fastener guarantees dimensional accuracy and interchangeability in global manufacturing operations, reducing assembly time and maintenance costs.
Specification Summary & Compliance
This M5 x 0.8 mm coarse thread screw features precision Class 6h thread fit tolerance with minimum thread length of 16 mm and total length of 70 mm. Manufactured to ISO 4014 standards (DIN 931 equivalent) with Class 8.8 strength rating and Rockwell C21 hardness. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations for hazardous substance restrictions.
