S-92525A615 Length 1/2" Tapping Screws

Tapping Screws

0446FA00004 Tapping Screws
0446FA00004 Tapping Screws

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

Part No.
Part No. 0446FA00004
Equivalent to mcmaster :
92525A615

Basic Information

Tapping Screw Type B
System of Measurement Inch

Head Parameters

Head Type Rounded
Head Diameter 0.219"
Head Height 0.08"
Rounded Head Profile Standard
Rounded Head Style Pan

Dimensions

Length 1/2"
Shank Cross Section Round

Thread Parameters

Screw Size No. 4
Thread Diameter 0.112"
Approximate Threads per Inch 24
Thread Direction Right Hand
Threading Fully Threaded

Tip & Drive Parameters

Tip Type Blunt
Drive Style Phillips
Drive Size No. 1
Drill Bit Size No. 44
Drill Bit Diameter 0.086"
Tapping Method Thread Forming

Material & Strength

Material 316 Stainless Steel

Temperature & Environment

For Use In Sheet Metal
REACH Compliant
RoHS Compliant
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 in harsh environments due to 316 stainless steel construction, ideal for marine and chemical-exposed applications
  • Vibration-resistant, secure fastening achieved through thread forming technology that creates strong mating threads without chip removal
  • Efficient installation with Phillips No. 1 drive and pan head design providing good torque transfer and flush seating
  • Full-length threading ensures maximum grip and load distribution across the entire 1/2" length in sheet metal assemblies
  • Precision compatibility with standard No. 44 drill bits (0.086" diameter) for proper hole preparation and thread formation
  • Regulatory compliance with RoHS 3 and REACH standards for safe use in regulated industrial applications
  • Right-hand thread direction provides familiar, standardized installation for maintenance and assembly workflows

Professional Applications & Engineering Value

This Type B thread forming tapping screw delivers exceptional value in sheet metal applications where corrosion resistance and joint integrity are critical. The 316 stainless steel composition provides superior protection against chloride-induced stress corrosion cracking, making it ideal for marine hardware, chemical processing equipment, and outdoor enclosures. The thread forming technology creates precise, cold-formed threads in pre-drilled holes without generating chips, eliminating contamination risks in sensitive assemblies. The combination of fully threaded design and blunt tip ensures smooth engagement and maximum thread contact area, distributing mechanical loads evenly to prevent joint loosening under vibration. The Phillips pan head offers reliable drive engagement while maintaining a low-profile appearance suitable for various industrial fastening requirements.

Specification Summary & Compliance

This No. 4-24 x 1/2" tapping screw features inch system measurements with a thread diameter of 0.112" and approximately 24 threads per inch. Manufactured to Type B thread forming standards with right-hand threading direction and fully threaded shank. The screw demonstrates compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material restrictions adherence. Designed for use with standard No. 44 drill bits (0.086" diameter) in sheet metal applications, providing precise fit and optimal thread formation performance.

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