S-91223A429 M5 x 10 mm 316 Stainless Steel Ultra-Low-Profile Socket Head Screws

316 Stainless Steel Ultra-Low-Profile Socket Head Screws

0031FA00078 316 Stainless Steel Ultra-Low-Profile Socket Head Screws
0031FA00078 316 Stainless Steel Ultra-Low-Profile Socket Head Screws

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Part No.
Part No. 0031FA00078
Equivalent to mcmaster :
91223A429

Basic Information

System of Measurement Metric

Head Parameters

Head Type Socket
Head Diameter 8.5 mm
Head Diameter Tolerance -0.127mm to 0.127mm
Head Height 1.7 mm
Socket Head Profile Ultra-Low

Dimensions

Length 10 mm
Shoulder Diameter 5.2 mm
Shoulder Length 1.7 mm

Thread Parameters

Thread Type Metric
Thread Size M5
Thread Pitch 0.8 mm
Thread Spacing Coarse
Thread Direction Right Hand
Thread Fit Class 6g
Threading Fully Threaded

Tip & Drive Parameters

Drive Style Hex
Drive Size 3 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 chemical exposure
  • Enhanced durability and load-bearing capacity from Rockwell B70 hardness and 70,000 psi tensile strength
  • Precise, reliable fastening ensured by Class 6g thread fit for consistent engagement and vibration resistance
  • Space-saving ultra-low profile head allows installation in confined areas without compromising strength
  • Secure, slip-resistant installation with 3mm hex drive for high torque application and easy maintenance
  • Full thread coverage provides maximum grip and uniform stress distribution along the entire 10mm length
  • Compliance with global environmental standards including RoHS 3 and REACH for safe, sustainable usage

Professional Applications & Engineering Value

This M5 socket head cap screw delivers exceptional engineering value in demanding applications where space constraints and corrosion resistance are critical. The 316 stainless steel material provides outstanding protection against chemical and marine environments, while the ultra-low profile head design enables installation in compact assemblies without sacrificing performance. The Class 6g thread fit ensures precise mating with nuts and tapped holes, preventing loosening under vibration in machinery, automotive, and marine equipment. With its 70,000 psi tensile strength and Rockwell B70 hardness, this fully threaded fastener maintains integrity under heavy loads, making it ideal for structural components, precision instruments, and industrial machinery requiring reliable, long-term fastening solutions.

Specification Summary & Compliance

This metric socket head cap screw features M5 x 0.8mm coarse thread with Class 6g tolerance for precision fit, right-hand thread direction, and 10mm fully threaded length. Manufacturing complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring material safety and sustainability. The socket head maintains tight dimensional control with 8.5mm diameter and 1.7mm height profile for consistent performance across industrial applications.

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