S-92451A541 1/4"-20 x 7/8" ASME B18.6.3 Brass Slotted Flat Head Screws

Brass Slotted Flat Head Screws

0356FA00064 Brass Slotted Flat Head Screws
0356FA00064 Brass Slotted Flat Head Screws

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Part No.
Part No. 0356FA00064
Equivalent to mcmaster :
92451A541

Basic Information

System of Measurement Inch

Head Parameters

Head Type Flat
Head Diameter 0.477"
Head Height 0.153"
Flat Head Profile Standard

Dimensions

Length 7/8"

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 construction, ensuring long-term reliability in harsh environments
  • Exceptional 50,000 psi tensile strength provides reliable performance in demanding applications
  • Class 2A thread fit guarantees precise mating and easy installation while maintaining secure fastening
  • 82° countersink angle allows for flush mounting with standard countersunk holes
  • Rockwell B50 hardness offers excellent durability and resistance to wear during installation and use
  • Full threading ensures maximum grip length and superior holding power throughout the entire fastener
  • Environmental compliance with RoHS 3 and REACH standards makes these screws suitable for regulated industries

Professional Applications & Engineering Value

This brass flat head slotted screw delivers exceptional engineering value through its combination of corrosion-resistant brass material and UNC coarse threading. The 1/4"-20 thread size with Class 2A fit provides reliable fastening in applications where vibration resistance and easy assembly are critical. The 82° countersink angle ensures flush installation in machinery, electrical enclosures, and marine equipment, while the slotted drive style offers compatibility with standard tools. These screws are particularly valuable in plumbing, electrical, and marine applications where corrosion resistance and environmental compliance are mandatory requirements, preventing galvanic corrosion and ensuring long-term structural integrity.

Specification Summary & Compliance

Manufactured to exact ASME B18.6.3 specifications with Class 2A thread fit tolerance for precision mating. Features 1/4"-20 UNC coarse threading and fully threaded design with 82° countersink angle. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, making these screws suitable for use in regulated industries and applications requiring environmental responsibility.

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