S-91223A326 10-24 x 1/2" 316 Stainless Steel Ultra-Low-Profile Socket Head Screws

316 Stainless Steel Ultra-Low-Profile Socket Head Screws

0031FA00040 316 Stainless Steel Ultra-Low-Profile Socket Head Screws
0031FA00040 316 Stainless Steel Ultra-Low-Profile Socket Head Screws

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

Part No.
Part No. 0031FA00040
Equivalent to mcmaster :
91223A326

Basic Information

System of Measurement Inch

Head Parameters

Head Type Socket
Head Diameter 13/32"
Head Diameter Tolerance -0.005" to 0.005"
Head Height 1/16"
Socket Head Profile Ultra-Low

Dimensions

Length 1/2"
Shoulder Diameter 1/4"
Shoulder Length 1/16"

Thread Parameters

Thread Type UNC
Thread Size 10-24
Thread Diameter 0.19"
Thread Spacing Coarse
Thread Direction Right Hand
Thread Fit Class 2A
Threading Fully Threaded

Tip & Drive Parameters

Drive Style Hex
Drive Size 3/32"

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 fastening with 70,000 psi tensile strength for demanding mechanical applications
  • Space-saving installation enabled by the ultra-low socket head profile in confined spaces
  • Precise thread engagement and reliable fit ensured by UNC coarse threads with Class 2A tolerance
  • Durable, long-lasting performance backed by Rockwell B70 hardness for wear resistance
  • Secure tamper-resistant drive using a standard 3/32" hex key for controlled torque application
  • Global compliance assurance meeting RoHS 3 and REACH environmental regulations

Professional Applications & Engineering Value

This 316 Stainless Steel Socket Head Cap Screw is engineered to solve critical challenges in industrial and marine applications where corrosion and chemical exposure are prevalent. The UNC coarse thread design ensures rapid assembly and reduced cross-threading risk, while the Class 2A thread fit provides consistent clamping force without galling. The ultra-low head profile allows for flush mounting in compact machinery, electronic enclosures, and precision equipment. With its 70,000 psi tensile strength and Rockwell B70 hardness, this fastener maintains integrity under vibration and load, making it ideal for pumps, valves, and structural assemblies requiring corrosion-resistant screws with reliable performance.

Specification Summary & Compliance

This inch-system fastener features a 10-24 UNC thread with Class 2A fit for standard tolerance, a 1/2" length, and 3/32" hex drive. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material sustainability in industrial supply chains.

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