S-94288A212 5/16"-18 x 3/4" Extreme-Strength Stainless Steel Flanged Hex Head Screws

Extreme-Strength Stainless Steel Flanged Hex Head Screws

0273FA00007 Extreme-Strength Stainless Steel Flanged Hex Head Screws
0273FA00007 Extreme-Strength Stainless Steel Flanged Hex Head Screws

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

Part No.
Part No. 0273FA00007
Equivalent to mcmaster :
94288A212

Basic Information

Screw Features Flanged
System of Measurement Inch

Head Parameters

Head Type Hex
Head Width 3/8"
Head Height 5/16"

Dimensions

Length 3/4"
Flange Diameter 5/8"

Thread Parameters

Thread Type UNC
Thread Size 5/16"-18
Thread Diameter 0.3125"
Thread Spacing Coarse
Thread Direction Right Hand
Thread Fit Class 2A
Threading Fully Threaded

Tip & Drive Parameters

Drive Style External Hex

Material & Strength

Material 18-8 Stainless Steel
Hardness Rockwell C38
Tensile Strength 170000 psi
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 thanks to 18-8 stainless steel construction, ideal for harsh industrial environments.
  • Exceptional holding power with a tensile strength of 170,000 psi, ensuring reliable performance under high stress.
  • Enhanced durability and wear resistance provided by Rockwell C38 hardness, extending the fastener's service life.
  • Easy installation and removal with the external hex drive and flange design, which eliminates the need for a separate washer.
  • Precise and secure thread engagement due to Class 2A thread fit and UNC coarse threads, reducing the risk of cross-threading.
  • Versatile full-threaded design allows for consistent clamping force along the entire length, suitable for various material thicknesses.
  • Broad compatibility with standard UNC thread systems, making it a dependable choice for many industrial assemblies.

Professional Applications & Engineering Value

This 5/16"-18 x 3/4" hex head flange screw in 18-8 stainless steel is engineered to address common industrial challenges such as vibration loosening and corrosion-induced failure. The integrated flange distributes clamping force evenly, reducing surface damage and providing a secure, washer-free solution. With UNC coarse threads and a fully threaded design, it ensures quick assembly and reliable performance in heavy-duty applications like machinery, automotive, and construction. The external hex drive allows for high-torque installation, making it a top choice for professionals seeking efficient, high-strength fastening that withstands demanding conditions.

Specification Summary & Compliance

This fastener adheres to UNC thread standards with a Class 2A thread fit for consistent dimensional accuracy. It meets industry specifications for 18-8 stainless steel material properties, including hardness and tensile strength. Compliant with common industrial standards, it is suitable for applications requiring reliable performance and is manufactured to ensure quality and consistency in professional settings.

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