S-91802A546 1/4"-20 x 1 1/2" ASME B18.6.3 Stainless Steel Phillips Oval Head Screws

Stainless Steel Phillips Oval Head Screws

0298FA00123 Stainless Steel Phillips Oval Head Screws
0298FA00123 Stainless Steel Phillips Oval Head Screws

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

Part No.
Part No. 0298FA00123
Equivalent to mcmaster :
91802A546

Basic Information

System of Measurement Inch

Head Parameters

Head Type Oval
Head Diameter 0.477"
Head Height 0.232"
Oval Head Profile Standard
Oval Top Height 0.079"

Dimensions

Length 1 1/2"

Thread Parameters

Thread Type UNC
Thread Size 1/4"-20
Thread Diameter 0.25"
Thread Spacing Coarse
Thread Direction Right Hand
Thread Fit Class 2A
Threading Fully Threaded

Tip & Drive Parameters

Drive Style Phillips
Drive Size No. 3
Countersink Angle 82°

Material & Strength

Material Passivated 18-8 Stainless Steel
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

  • Exceptional corrosion resistance with passivated 18-8 stainless steel construction for long-lasting performance in harsh environments
  • Superior holding power achieved through full threading and UNC coarse threads that provide maximum grip and vibration resistance
  • High tensile strength of 80,000 psi ensures reliable performance under heavy loads and mechanical stress
  • Optimized drive engagement with Phillips No. 3 drive for efficient installation and reduced cam-out risk
  • Precise Class 2A thread fit guarantees consistent assembly and compatibility with standard mating components
  • Streamlined oval head design offers a flush finish when installed, minimizing protrusion and improving safety
  • Full regulatory compliance with ASME B18.6.3, RoHS 3, and REACH standards for worry-free industrial use

Professional Applications & Engineering Value

This passivated 18-8 stainless steel oval head screw delivers critical advantages in demanding environments where corrosion resistance and structural integrity are paramount. The combination of 80,000 psi tensile strength and Rockwell B80 hardness ensures reliable fastening in machinery, electrical enclosures, and structural assemblies subject to vibration and load stresses. The fully threaded UNC coarse thread design provides maximum thread engagement and pull-out resistance, while the oval head profile creates a smooth, finished appearance that reduces snagging hazards. Engineered to meet ASME B18.6.3 specifications, these Phillips drive screws offer consistent performance in automotive, marine, and industrial equipment applications where durability and compliance are non-negotiable.

Specification Summary & Compliance

This 1/4"-20 x 1-1/2" oval head screw features Class 2A thread fit with UNC coarse threads, manufactured to ASME B18.6.3 dimensional standards. The screw maintains precise dimensional tolerances with 82° countersink angle and standard oval head profile. Compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations ensures environmental safety and restricted substance adherence for global industrial applications.

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