S-91239A448 M8 x 50 mm ISO 7380 Steel Button Head Hex-Drive Screws

Steel Button Head Hex-Drive Screws

0082FA00078 Steel Button Head Hex-Drive Screws
0082FA00078 Steel Button Head Hex-Drive Screws

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Part No.
Part No. 0082FA00078
Equivalent to mcmaster :
91239A448

Basic Information

System of Measurement Metric

Head Parameters

Head Type Rounded
Head Diameter 14 mm
Head Height 4.4 mm
Rounded Head Profile Standard
Rounded Head Style Button

Dimensions

Length 50 mm

Thread Parameters

Thread Type Metric
Thread Size M8
Thread Pitch 1.25 mm
Thread Spacing Coarse
Thread Direction Right Hand
Thread Fit Class 6g
Threading Fully Threaded

Tip & Drive Parameters

Drive Style Hex
Drive Size 5 mm

Material & Strength

Material Black-Oxide Alloy Steel
Hardness Rockwell C32
Fastener Strength Grade/Class Class 10.9
Tensile Strength 140000 psi

Temperature & Environment

REACH Compliant
RoHS Compliant
Specifications Met ISO 7380
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 140,000 psi ensures reliable performance in heavy-duty applications, reducing the risk of fastener failure.
  • Superior corrosion resistance from the black-oxide finish on alloy steel, extending service life in harsh industrial environments.
  • High hardness rating of Rockwell C32 provides excellent wear resistance and durability under repeated stress.
  • Easy installation and removal with a 5 mm hex drive and button head design, allowing for efficient assembly with standard tools.
  • Precise thread fit with Class 6g coarse pitch (M8 x 1.25mm) ensures secure fastening and vibration resistance in dynamic settings.
  • Full threading along the 50mm length offers versatile grip and adjustment capabilities across various material thicknesses.
  • Compliance with international standards including ISO 7380, RoHS 3, and REACH, guaranteeing safety and regulatory adherence for global use.

Professional Applications & Engineering Value

This M8 hex button head screw is engineered to address critical challenges in industrial assembly, such as vibration loosening and corrosion in demanding environments. Made from black-oxide alloy steel, it combines high tensile strength with enhanced resistance to rust, making it ideal for machinery, automotive, and construction applications where reliability is paramount. The coarse thread pitch and Class 6g fit provide quick installation and secure holding power, reducing maintenance downtime. Fully threaded for maximum grip, this metric screw ensures consistent performance in heavy-duty setups, supported by ISO 7380 certification for precision and interoperability in global projects.

Specification Summary & Compliance

This fastener features precise metric threading with M8 x 1.25mm coarse pitch and Class 6g thread fit for accurate engagement. It meets ISO 7380 specifications for dimensional consistency and is manufactured from Class 10.9 alloy steel with a tensile strength of 140,000 psi. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, it ensures environmental safety and adherence to international standards for industrial use.

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