S-92446A105 4-40 x 3/16" ASME B18.6.3 Brass Pan Head Slotted Screws

Brass Pan Head Slotted Screws

0127FA00012 Brass Pan Head Slotted Screws
0127FA00012 Brass Pan Head Slotted Screws

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

Part No.
Part No. 0127FA00012
Equivalent to mcmaster :
92446A105

Basic Information

System of Measurement Inch

Head Parameters

Head Type Rounded
Head Diameter 0.219"
Head Height 0.068"
Rounded Head Profile Standard
Rounded Head Style Pan

Dimensions

Length 3/16"

Thread Parameters

Thread Type UNC
Thread Size 4-40
Thread Diameter 0.112"
Thread Spacing Coarse
Thread Direction Right Hand
Thread Fit Class 2A
Threading Fully Threaded

Tip & Drive Parameters

Drive Style Slotted

Material & Strength

Material Brass
Hardness Rockwell B40
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 with brass construction for long-lasting performance in harsh environments
  • Excellent electrical conductivity making these screws ideal for electrical and electronic assemblies
  • High tensile strength of 50,000 psi ensures reliable fastening under mechanical stress
  • Rockwell B40 hardness provides optimal durability while maintaining machinability
  • Class 2A thread fit with UNC coarse threading enables quick assembly and secure fastening
  • Slotted pan head design offers convenient installation with standard screwdrivers
  • Full compliance with industry standards including ASME B18.6.3, RoHS 3, and REACH regulations

Professional Applications & Engineering Value

These 4-40 UNC brass slotted pan head screws deliver exceptional engineering value across multiple industrial sectors. The brass material provides natural corrosion resistance, making them ideal for marine applications, plumbing systems, and electrical enclosures where moisture exposure is common. The rounded pan head profile with slotted drive offers both aesthetic appeal and practical installation benefits, while the coarse UNC threading ensures rapid assembly in production environments. With full threading along the entire 3/16" length, these screws maintain consistent holding power throughout the engagement depth. The combination of 50,000 psi tensile strength and Rockwell B40 hardness creates an optimal balance between durability and machinability, preventing thread stripping during installation while maintaining long-term fastening integrity in vibration-prone applications.

Specification Summary & Compliance

This rounded head screw features precise Class 2A thread fit tolerances with 4-40 UNC coarse thread spacing and standard right-hand threading. Manufacturing complies with ASME B18.6.3 specifications for dimensional accuracy and performance. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use in industrial and commercial applications worldwide.

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