S-92185A379 7/8"-9 x 3 1/2" Super-Corrosion-Resistant 316 Stainless Steel Socket Head Screws

Super-Corrosion-Resistant 316 Stainless Steel Socket Head Screws

0018FA00216 Super-Corrosion-Resistant 316 Stainless Steel Socket Head Screws
0018FA00216 Super-Corrosion-Resistant 316 Stainless Steel Socket Head Screws

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

Part No.
Part No. 0018FA00216
Equivalent to mcmaster :
92185A379

Basic Information

System of Measurement Inch

Head Parameters

Head Type Socket
Head Diameter 1 5/16"
Head Height 7/8"
Socket Head Profile Standard

Dimensions

Length 3 1/2"

Thread Parameters

Thread Type UNC
Thread Size 7/8"-9
Thread Diameter 0.875"
Thread Spacing Coarse
Min Thread Length 2 1/4"
Thread Direction Right Hand
Thread Fit Class 3A
Threading Partially Threaded

Tip & Drive Parameters

Drive Style Hex
Drive Size 3/4"

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

  • Superior corrosion resistance with 316 stainless steel construction, ideal for harsh chemical and marine environments
  • Enhanced durability and load-bearing capability from 70,000 psi tensile strength and Rockwell B70 hardness
  • Precise, secure fastening with Class 3A thread fit for reduced vibration loosening and reliable assembly
  • Easy installation in confined spaces using the 3/4" hex drive and standard socket head profile
  • Extended thread engagement with UNC coarse threads providing strong holding power in various materials
  • Long-term environmental compliance meeting RoHS 3 and REACH regulations for global industrial use
  • Improved surface protection through passivated finish that increases corrosion resistance and service life

Professional Applications & Engineering Value

Engineered for demanding industrial environments, these 316 stainless steel socket head cap screws deliver exceptional performance where corrosion resistance and mechanical strength are critical. The UNC coarse thread design ensures rapid assembly and reliable clamping force in soft metals, plastics, and structural components, while the Class 3A thread fit maintains precision in high-vibration applications. The passivated finish provides an additional protective layer against chemical exposure and atmospheric conditions, making these hex drive screws ideal for marine equipment, chemical processing machinery, food processing systems, and offshore installations where fastener failure is not an option.

Specification Summary & Compliance

This socket head cap screw features a 7/8"-9 UNC coarse thread with Class 3A fit tolerance, 3 1/2" length with partially threaded design, and 3/4" hex drive. Manufactured from 316 stainless steel with passivated finish, it meets mechanical properties including 70,000 psi tensile strength and Rockwell B70 hardness. The product complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations for industrial use.

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