S-91223A413 M3 x 8 mm 316 Stainless Steel Ultra-Low-Profile Socket Head Screws

316 Stainless Steel Ultra-Low-Profile Socket Head Screws

0031FA00063 316 Stainless Steel Ultra-Low-Profile Socket Head Screws
0031FA00063 316 Stainless Steel Ultra-Low-Profile Socket Head Screws

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

Part No.
Part No. 0031FA00063
Equivalent to mcmaster :
91223A413

Basic Information

System of Measurement Metric

Head Parameters

Head Type Socket
Head Diameter 5.5 mm
Head Diameter Tolerance -0.127mm to 0.127mm
Head Height 1 mm
Socket Head Profile Ultra-Low

Dimensions

Length 8 mm
Shoulder Diameter 3.8 mm
Shoulder Length 1 mm

Thread Parameters

Thread Type Metric
Thread Size M3
Thread Pitch 0.5 mm
Thread Spacing Coarse
Thread Direction Right Hand
Thread Fit Class 6g
Threading Fully Threaded

Tip & Drive Parameters

Drive Style Hex
Drive Size 2 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 in harsh environments thanks to 316 stainless steel construction
  • High-strength performance with 70,000 psi tensile strength for reliable load-bearing in demanding applications
  • Precise, secure fastening ensured by the Class 6g thread fit, minimizing the risk of loosening
  • Space-saving ultra-low profile head allows for installation in tight or flush-mount applications
  • Excellent durability from Rockwell B70 hardness, providing long-term wear resistance
  • Easy installation and removal with the 2 mm hex drive, compatible with standard tools
  • Compliance with environmental regulations, being RoHS 3 and REACH compliant for safe industrial use

Professional Applications & Engineering Value

Engineered for precision, this M3 socket head cap screw in 316 stainless steel addresses critical challenges in industrial assembly. Its ultra-low profile head and compact 8mm length make it ideal for applications where space is limited, such as in electronics enclosures, machinery frames, and automotive components. The Class 6g thread fit and 0.5mm coarse pitch ensure quick, reliable engagement, reducing assembly time while maintaining vibration resistance. With high tensile strength and corrosion resistance, it provides a durable solution for environments exposed to moisture, chemicals, or high stress, minimizing maintenance and replacement costs in industrial fastening systems.

Specification Summary & Compliance

This metric screw adheres to precise dimensional standards, including a Class 6g thread fit per ISO metric specifications, ensuring consistent performance. The manufacturing process complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its suitability for environmentally conscious industrial applications. Key specifications include an M3 thread size, 0.5mm coarse pitch, 8mm length, and a 2mm hex drive, all designed for reliable, standardized use in various engineering contexts.

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