S-91223A324 8-32 x 1" 316 Stainless Steel Ultra-Low-Profile Socket Head Screws

316 Stainless Steel Ultra-Low-Profile Socket Head Screws

0031FA00038 316 Stainless Steel Ultra-Low-Profile Socket Head Screws
0031FA00038 316 Stainless Steel Ultra-Low-Profile Socket Head Screws

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

Part No.
Part No. 0031FA00038
Equivalent to mcmaster :
91223A324

Basic Information

System of Measurement Inch

Head Parameters

Head Type Socket
Head Diameter 11/32"
Head Diameter Tolerance -0.005" to 0.005"
Head Height 1/16"
Socket Head Profile Ultra-Low

Dimensions

Length 1"
Shoulder Diameter 3/16"
Shoulder Length 1/16"

Thread Parameters

Thread Type UNC
Thread Size 8-32
Thread Diameter 0.164"
Thread Spacing Coarse
Thread Direction Right Hand
Thread Fit Class 2A
Threading Fully Threaded

Tip & Drive Parameters

Drive Style Hex
Drive Size 5/64"

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.
  • High tensile strength of 70,000 psi ensures reliable performance under heavy loads and vibration.
  • Precise Class 2A thread fit guarantees easy assembly and secure fastening with standard UNC nuts and threads.
  • Ultra-low socket head profile allows for installation in tight spaces without compromising drive engagement.
  • Consistent dimensional accuracy with tight head diameter tolerance for uniform performance in automated applications.
  • RoHS 3 and REACH compliance provides assurance for use in regulated industries and global markets.
  • Rockwell B70 hardness offers excellent wear resistance and long-term durability in high-stress applications.

Professional Applications & Engineering Value

This 316 stainless steel socket head cap screw is engineered to address critical challenges in industrial settings, such as corrosion from moisture, chemicals, and saltwater environments. The UNC coarse threads and Class 2A fit ensure quick, reliable assembly with reduced risk of cross-threading, while the ultra-low profile head and 5/64" hex drive provide optimal torque transmission in confined spaces. With a tensile strength of 70,000 psi, it withstands dynamic loads in machinery, automotive, and marine applications, offering long-term reliability and reduced maintenance costs. Fully threaded design ensures maximum grip length for secure fastening in structural and equipment assembly.

Specification Summary & Compliance

This fastener adheres to UNC thread standards with Class 2A thread fit for consistent dimensional accuracy. Manufactured from 316 stainless steel with a Rockwell B70 hardness, it meets precise tolerances for head diameter and thread dimensions. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and suitability for industrial use.

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