S-91790A197 8-32 x 3/4" ASME B18.6.3 Stainless Steel Slotted Oval Head Screws

Stainless Steel Slotted Oval Head Screws

0359FA00020 Stainless Steel Slotted Oval Head Screws
0359FA00020 Stainless Steel Slotted Oval Head Screws

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

Part No.
Part No. 0359FA00020
Equivalent to mcmaster :
91790A197

Basic Information

System of Measurement Inch

Head Parameters

Head Type Oval
Head Diameter 0.312"
Head Height 0.152"
Oval Head Profile Standard
Oval Top Height 0.052"

Dimensions

Length 3/4"

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 Slotted
Countersink Angle 82°

Material & Strength

Material 18-8 Stainless Steel
Finish Passivated
Hardness Rockwell B80
Tensile Strength 80000 psi

Temperature & Environment

REACH Compliant
RoHS Compliant
Specifications Met ASME B18.6.3
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 and passivated finish, ideal for harsh environments.
  • Exceptional mechanical strength with 80,000 psi tensile strength and Rockwell B80 hardness for reliable, long-lasting fastening.
  • Easy manual installation and removal with a standard slotted drive and right-hand thread direction.
  • Optimized thread engagement from coarse UNC threading and Class 2A fit, ensuring secure connections and reducing cross-threading risks.
  • Streamlined, low-profile head design with an oval head that sits flush for a clean, finished appearance.
  • Full compliance with major industry standards including ASME B18.6.3, guaranteeing dimensional accuracy and interchangeability.
  • Environmentally responsible manufacturing with RoHS 3 and REACH compliance, meeting global regulatory requirements.

Professional Applications & Engineering Value

This 8-32 UNC Oval Head Slotted Screw is engineered to solve critical fastening challenges in demanding industrial settings. The 18-8 Stainless Steel material, enhanced by a passivated finish, provides outstanding resistance to rust and corrosion, making it a top choice for applications exposed to moisture, chemicals, or outdoor elements. Its coarse thread and Class 2A thread fit allow for quicker assembly and stronger holding power in softer materials or where vibration is a concern. The oval head design offers a countersunk, flush finish that improves aesthetics and safety by eliminating protrusions. Commonly used in machinery, electronics, and automotive assemblies, this screw delivers reliable performance where corrosion resistance and high tensile strength are non-negotiable for operational integrity.

Specification Summary & Compliance

This screw adheres to precise dimensional standards with a Class 2A thread fit and UNC coarse threading (8-32 thread size, 3/4" length). It is manufactured in accordance with ASME B18.6.3 specifications, ensuring consistent quality and interchangeability. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming it is free of hazardous substances and meets environmental safety standards for industrial use.

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