S-91700A537 1/4"-20 x 1/2" ASME B18.6.3 Brass Slotted Oval Head Screws

Brass Slotted Oval Head Screws

0361FA00026 Brass Slotted Oval Head Screws
0361FA00026 Brass Slotted Oval Head Screws

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Part No.
Part No. 0361FA00026
Equivalent to mcmaster :
91700A537

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 1/2"

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 Slotted
Countersink Angle 82°

Material & Strength

Material Brass
Hardness Rockwell B50
Tensile Strength 50000 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 from high-quality brass material, ensuring long-term reliability in harsh environments
  • Excellent tensile strength of 50,000 psi provides secure fastening for demanding industrial applications
  • Precision Class 2A thread fit guarantees smooth installation and consistent performance
  • Standard 82° countersink angle enables flush mounting with clean, professional finishes
  • Full threading design maximizes grip strength and load distribution across the entire fastener length
  • Rockwell B50 hardness rating maintains structural integrity under repeated stress and vibration
  • Compliance with major industry standards including ASME B18.6.3 ensures engineering consistency and quality assurance

Professional Applications & Engineering Value

These brass oval head slotted screws deliver exceptional value in applications where corrosion resistance and electrical conductivity are critical. The 1/4-20 UNC coarse threading with Class 2A fit provides rapid installation in soft materials while maintaining vibration resistance. The standard oval head profile with 82° countersink angle creates seamless transitions in mounted components, eliminating protrusions that could interfere with moving parts. Ideal for electrical enclosures, marine hardware, and plumbing systems, these fully threaded brass screws solve common challenges of galvanic corrosion while providing the 50,000 psi tensile strength needed for structural integrity in commercial and industrial settings.

Specification Summary & Compliance

Manufactured to precise Class 2A thread fit tolerances with UNC coarse threading (1/4-20) and right-hand thread direction. Fully compliant with ASME B18.6.3 manufacturing specifications, RoHS 3 (2015/863/EU) environmental directives, and REACH (EC 1907/2006) chemical safety regulations. Features standard oval head profile with 0.477" head diameter and 1/2" length for consistent dimensional accuracy across production batches.

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