S-94625A111 Length 1/2" Tapping Screws

Tapping Screws

0475FA00001 Tapping Screws
0475FA00001 Tapping Screws

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

Part No.
Part No. 0475FA00001
Equivalent to mcmaster :
94625A111

Basic Information

Tapping Screw Type B
System of Measurement Inch

Head Parameters

Head Type Flat
Head Diameter 0.312"
Head Height 0.1"
Flat Head Profile Standard

Dimensions

Length 1/2"
Shank Cross Section Round

Thread Parameters

Screw Size No. 8
Thread Diameter 0.164"
Approximate Threads per Inch 18
Thread Direction Right Hand
Threading Fully Threaded

Tip & Drive Parameters

Tip Type Drilling
Drive Style Tamper-Resistant Torx
Drive Size T15
Drill Tip Type No. 2
Drill Tip Length 3/16"
Countersink Angle 82°
Tapping Method Thread Forming

Material & Strength

Material Zinc-Plated Steel

Temperature & Environment

For Use In Steel, Sheet Metal

Installation & Application

Maximum Drilling Thickness 0.098"
Technical Drawings No drawings available at the moment, will be launched soon
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Key Features & Benefits at a Glance

  • Enhanced security with tamper-resistant T15 Torx drive that prevents unauthorized removal in high-risk environments
  • Reduced installation time and cost through integrated drilling tip that penetrates up to 0.098" steel/sheet metal without pre-drilling
  • Superior corrosion resistance with zinc-plated steel construction for extended service life in industrial conditions
  • Secure, vibration-resistant fastening achieved through thread-forming technology that creates stronger mating threads in metal substrates
  • Clean, flush installation with 82° countersink angle flat head design for smooth surface finishes
  • Full-length gripping power with completely threaded shank for maximum holding strength across the entire fastener length
  • Industry-standard compatibility with No. 8 size and 18 TPI thread pattern for reliable interchangeability

Professional Applications & Engineering Value

These tamper-resistant T15 Torx flat head tapping screws deliver critical security and efficiency for metal fabrication applications. The thread-forming technology combined with the integrated drilling tip eliminates the need for separate drilling operations, significantly reducing assembly time while creating stronger, more durable threads in steel and sheet metal substrates. The zinc-plated steel construction provides essential corrosion protection for industrial environments, while the 82° countersink angle ensures flush mounting for safety and aesthetics. Engineered for security-focused applications where tamper-proof fastening is mandatory, these screws maintain integrity in electrical enclosures, machinery guards, and public infrastructure where unauthorized access prevention is paramount.

Specification Summary & Compliance

Precision-manufactured to industry standards with No. 8 screw size (0.164" thread diameter) and 18 TPI right-hand threads for consistent performance. Features fully threaded design with standard flat head profile and T15 tamper-resistant Torx drive. The thread-forming tapping method (Type B) ensures reliable installation in metal substrates without pre-tapping. Complies with industrial fastener specifications for dimensional accuracy and manufactured with zinc-plated steel that meets corrosion resistance requirements for industrial applications.

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