S-92185A643 3/8"-16 x 3" Super-Corrosion-Resistant 316 Stainless Steel Socket Head Screws

Super-Corrosion-Resistant 316 Stainless Steel Socket Head Screws

0018FA00318 Super-Corrosion-Resistant 316 Stainless Steel Socket Head Screws
0018FA00318 Super-Corrosion-Resistant 316 Stainless Steel Socket Head Screws

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

Part No.
Part No. 0018FA00318
Equivalent to mcmaster :
92185A643

Basic Information

System of Measurement Inch

Head Parameters

Head Type Socket
Head Diameter 9/16"
Head Height 3/8"
Socket Head Profile Standard

Dimensions

Length 3"

Thread Parameters

Thread Type UNC
Thread Size 3/8"-16
Thread Diameter 0.375"
Thread Spacing Coarse
Thread Direction Right Hand
Thread Fit Class 3A
Threading Fully Threaded

Tip & Drive Parameters

Drive Style Hex
Drive Size 5/16"

Material & Strength

Material 316 Stainless Steel
Finish Passivated
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

  • Exceptional corrosion resistance with 316 stainless steel construction and passivated finish, ideal for harsh environments and extended service life.
  • High tensile strength of 70,000 psi ensures reliable performance under heavy loads and vibration, reducing failure risks.
  • Precise Class 3A thread fit provides superior engagement and alignment, minimizing assembly issues and improving joint integrity.
  • Coarse UNC threads offer quick installation and removal, saving time in maintenance and production cycles.
  • Fully threaded design allows for uniform clamping force along the entire 3" length, enhancing stability in thick materials.
  • Rockwell B70 hardness maintains thread form and drive integrity under repeated use, lowering replacement frequency.
  • Compliance with RoHS 3 and REACH ensures environmental safety and meets global regulatory standards for industrial applications.

Professional Applications & Engineering Value

Engineered for demanding sectors, this 316 stainless steel socket head cap screw excels in applications where corrosion and high stress are concerns, such as marine equipment, chemical processing, and outdoor machinery. The passivated finish enhances surface durability, preventing pitting and rust in saline or acidic conditions. With a 3/8"-16 UNC coarse thread and Class 3A fit, it delivers tight tolerances that resist loosening under dynamic loads, making it a reliable choice for assembly lines, structural frames, and heavy-duty fastening systems. Its fully threaded rod design ensures consistent grip in varied material thicknesses, reducing the need for multiple fastener types and streamlining inventory.

Specification Summary & Compliance

This socket head cap screw adheres to precise dimensional standards, including UNC thread specifications with a Class 3A thread fit for high accuracy. It meets manufacturing guidelines for inch system measurements, with a thread size of 3/8"-16, length of 3", and drive size of 5/16". Compliance is verified with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006), ensuring it is free from hazardous substances and suitable for global industrial use.

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