S-91223A454 M8 x 30 mm 316 Stainless Steel Ultra-Low-Profile Socket Head Screws

316 Stainless Steel Ultra-Low-Profile Socket Head Screws

0031FA00100 316 Stainless Steel Ultra-Low-Profile Socket Head Screws
0031FA00100 316 Stainless Steel Ultra-Low-Profile Socket Head Screws

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

Part No.
Part No. 0031FA00100
Equivalent to mcmaster :
91223A454

Basic Information

System of Measurement Metric

Head Parameters

Head Type Socket
Head Diameter 13 mm
Head Diameter Tolerance -0.127mm to 0.127mm
Head Height 2.7 mm
Socket Head Profile Ultra-Low

Dimensions

Length 30 mm
Shoulder Diameter 8.5 mm
Shoulder Length 2.7 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 316 Stainless Steel
Hardness Rockwell B70
Tensile Strength 70000 psi

Temperature & Environment

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

  • Superior corrosion resistance with 316 Stainless Steel construction, ideal for harsh environments and extending service life
  • Exceptional strength and durability from a Rockwell B70 hardness rating and 70,000 psi tensile strength for reliable, high-stress applications
  • Space-saving design with an ultra-low profile socket head, perfect for assemblies with limited clearance
  • Secure and efficient installation using a standard 5mm hex key, providing positive torque transfer and reducing the risk of tool slippage
  • Precise and reliable threading with a Class 6g fit and M8x1.25mm coarse thread, ensuring consistent engagement and vibration resistance
  • Full-threaded design for maximum grip and holding power along the entire 30mm length
  • Compliance with major environmental regulations including RoHS 3 and REACH, ensuring safety and suitability for global markets

Professional Applications & Engineering Value

This M8 socket head cap screw is engineered to solve critical challenges in precision assembly. The 316 Stainless Steel material offers excellent resistance to chemicals and saltwater, making it a top choice for marine, chemical processing, and food industry equipment where corrosion resistance is non-negotiable. The ultra-low profile head minimizes protrusion, enabling sleek designs and preventing interference in compact machinery and electronic enclosures. Combined with a Class 6g thread fit and coarse thread pitch, it ensures rapid assembly and maintains clamp load under dynamic loads and vibration, reducing maintenance needs and enhancing the longevity of your products.

Specification Summary & Compliance

This socket head cap screw features an M8 x 1.25mm metric coarse thread with a Class 6g tolerance for precise fit. The head diameter tolerance is -0.127mm to 0.127mm. It is manufactured in compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from hazardous substances and suitable for use in regulated industries.

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