S-91294A356 M12 x 30 mm DIN 7991, ISO 10642 Alloy Steel Hex Drive Flat Head Screws

Alloy Steel Hex Drive Flat Head Screws

0310FA00257 Alloy Steel Hex Drive Flat Head Screws
0310FA00257 Alloy Steel Hex Drive Flat Head Screws

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Part No.
Part No. 0310FA00257
Equivalent to mcmaster :
91294A356

Basic Information

System of Measurement Metric

Head Parameters

Head Type Flat
Head Diameter 24 mm
Head Height 6.5 mm
Flat Head Profile Standard

Dimensions

Length 30 mm

Thread Parameters

Thread Type Metric
Thread Size M12
Thread Pitch 1.75 mm
Thread Spacing Coarse
Thread Direction Right Hand
Thread Fit Class 6g
Threading Fully Threaded

Tip & Drive Parameters

Drive Style Hex
Drive Size 8 mm
Countersink Angle 90°

Material & Strength

Material Black-Oxide Alloy Steel
Hardness Rockwell C32
Fastener Strength Grade/Class Class 10.9
Tensile Strength 120000 psi

Temperature & Environment

REACH Compliant
RoHS Compliant
Specifications Met DIN 7991, ISO 10642
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 durability with Class 10.9 high-strength alloy steel construction, ensuring reliable performance under heavy loads and vibration.
  • Superior corrosion resistance from the black-oxide coating, extending service life in demanding industrial environments.
  • Efficient installation and removal with the 8 mm hex drive, providing secure tool engagement and reducing assembly time.
  • Optimal thread engagement through the M12 x 1.75 mm coarse pitch and Class 6g fit, minimizing cross-threading risks in various materials.
  • High tensile strength of 120,000 psi and Rockwell C32 hardness, offering robust fastening for critical applications.
  • Flush mounting capability with the standard flat head and 90° countersink angle, ideal for sleek, aerodynamic, or safety-focused designs.
  • Full threading along the 30 mm length ensures consistent grip and load distribution across the entire fastener.

Professional Applications & Engineering Value

This M12 flat head screw is engineered to address common industrial challenges, such as component loosening under dynamic stresses and corrosion in harsh conditions. The black-oxide alloy steel material, combined with a Class 10.9 strength grade, provides exceptional resistance to wear and environmental factors, making it suitable for heavy machinery, automotive assemblies, and structural frameworks. The fully threaded design with coarse pitch enhances grip in soft materials or pre-tapped holes, reducing the need for precise alignment. Its compliance with DIN 7991/ISO 10642 standards ensures dimensional accuracy and interchangeability, streamlining procurement and maintenance processes in B2B settings where reliability and regulatory adherence are paramount.

Specification Summary & Compliance

This fastener features precise metric dimensions, including an M12 thread size with a 1.75 mm coarse pitch and Class 6g thread fit for consistent tolerance. It adheres to DIN 7991 ISO 10642 specifications, guaranteeing manufacturing quality and performance. Additionally, it is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and suitability for global industrial markets.

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