S-91280A264 M5 x 80 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 tensile strength with Class 8.8 rating and 110,000 psi capability for reliable load-bearing in demanding applications.
- Enhanced corrosion resistance from zinc plating, extending service life in harsh industrial environments.
- Optimized thread engagement with M5 coarse thread (0.8mm pitch) for faster assembly and reduced cross-threading risks.
- Secure external hex drive design allows for high-torque installation using standard tools, ensuring tight fastening.
- Partial threading provides unthreaded shank for precise clamping and shear strength where needed.
- Consistent dimensional accuracy with Class 6h thread fit and ISO 4014 compliance for interchangeability and fit.
- Environmental and safety compliance with RoHS 3 and REACH standards, ensuring safe use in regulated industries.
Professional Applications & Engineering Value
This M5 hex head screw is engineered to address common industrial fastening challenges, such as vibration loosening and corrosion-induced failure. The Class 8.8 steel construction and Rockwell C21 hardness provide dependable strength for machinery, structural frames, and equipment assembly, where high tensile strength is critical. The zinc plating finish offers a protective barrier against moisture and chemicals, reducing maintenance needs in outdoor or humid settings. With a coarse metric thread and partial threading, it ensures quick installation and stable grip in materials like metal or composite, making it ideal for construction and industrial applications requiring durable, standardized fasteners.
Specification Summary & Compliance
This screw adheres to ISO 4014 (equivalent to DIN 931) for dimensional consistency, with a Class 6h thread fit ensuring precise tolerance. It meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance for environmental safety, and the metric coarse thread (M5 x 0.8mm) and right-hand threading align with international standards for broad compatibility in engineering projects.
