S-91280A172 M6 x 85 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

0235FA00255 Medium-Strength Metric Class 8.8 Steel Hex Head Screws
0235FA00255 Medium-Strength Metric Class 8.8 Steel Hex Head Screws

Image may differ from product. See technical specification for details.

Part No.
Part No. 0235FA00255
Equivalent to mcmaster :
91280A172

Basic Information

System of Measurement Metric

Head Parameters

Head Type Hex
Head Width 10 mm
Head Height 4 mm

Dimensions

Length 85 mm

Thread Parameters

Thread Type Metric
Thread Size M6
Thread Pitch 1 mm
Thread Spacing Coarse
Min Thread Length 18 mm
Thread Direction Right Hand
Thread Fit Class 6h
Threading Partially Threaded

Tip & Drive Parameters

Drive Style External Hex

Material & Strength

Material Steel
Finish Zinc Plated
Hardness Rockwell C21
Fastener Strength Grade/Class Class 8.8
Tensile Strength 110000 psi

Temperature & Environment

REACH Compliant
RoHS Compliant
Specifications Met ISO 4014, DIN 931
Technical Drawings No drawings available at the moment, will be launched soon
In Stock
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Key Features & Benefits at a Glance

  • Exceptional tensile strength of 110,000 psi ensures reliable performance in demanding industrial environments, reducing failure risks.
  • Corrosion-resistant zinc plating extends service life by protecting against rust and environmental degradation.
  • Class 8.8 strength grade provides high durability and load-bearing capacity for heavy-duty applications.
  • Partially threaded design offers optimal grip and vibration resistance in assemblies requiring precise clamping force.
  • External hex drive allows for easy installation and removal with standard tools, improving workflow efficiency.
  • Coarse thread pitch (1 mm) enables faster assembly and better performance in materials like steel or castings.
  • Rockwell C21 hardness ensures resistance to wear and deformation under stress, maintaining fastener integrity.

Professional Applications & Engineering Value

Engineered for heavy-duty industrial applications, this M6 hex head screw addresses critical challenges in machinery, construction, and automotive sectors. The Class 8.8 steel construction and zinc plating deliver superior corrosion resistance and tensile strength, preventing loosening under vibration and high loads. With a partially threaded metric coarse thread and external hex drive, it ensures quick, secure fastening in assemblies requiring reliable clamping. Ideal for structural frameworks, equipment mounts, and automotive components, this screw minimizes maintenance needs and enhances operational safety by complying with rigorous ISO 4014 standards.

Specification Summary & Compliance

This screw adheres to precise Class 6h thread fit and ISO 4014 manufacturing specifications, ensuring dimensional accuracy and interchangeability. It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, guaranteeing environmental safety and material restrictions. The metric coarse thread with 1 mm pitch and right-hand threading meets standardized requirements for industrial use, supporting consistent performance across global projects.

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