S-94061A199 Length 1" Tapping Screws

Tapping Screws

0474FA00034 Tapping Screws
0474FA00034 Tapping Screws

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

Part No.
Part No. 0474FA00034
Equivalent to mcmaster :
94061A199

Basic Information

Tapping Screw Type BSD
System of Measurement Inch

Head Parameters

Head Type Oval
Head Diameter 0.332"
Head Height 0.152"
Oval Head Profile Standard
Oval Top Height 0.049"

Dimensions

Length 1"
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 Phillips
Drive Size No. 2
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

  • Superior corrosion resistance with zinc-plated steel construction for extended service life in demanding industrial environments
  • Efficient installation through thread forming technology that creates stronger, more secure threads without chip removal
  • Optimized material penetration with integrated drilling tip capable of drilling through up to 0.098" thickness without pre-drilling
  • Enhanced aesthetic finish with oval head design that sits flush with material surfaces for professional-looking assemblies
  • Reliable driving performance featuring Phillips No. 2 drive for secure tool engagement and reduced cam-out risk
  • Precise countersinking with 82° angle for proper seating in steel and sheet metal applications
  • Full-thread engagement along the entire 1" length for maximum holding power and vibration resistance

Professional Applications & Engineering Value

These No. 8 x 1" zinc-plated steel tapping screws deliver exceptional engineering value for steel and sheet metal applications where reliability matters most. The thread forming technology eliminates the need for pre-tapped holes while creating stronger, more durable threads through material displacement rather than cutting. This BSD screw design with fully threaded construction ensures maximum surface contact and superior resistance to vibration loosening. The integrated drilling tip penetrates materials up to 0.098" thick, streamlining installation processes in manufacturing, HVAC systems, metal fabrication, and industrial equipment assembly. The Phillips oval head combines aesthetic appeal with functional performance, providing a finished look while the 82° countersink angle ensures proper seating in various metal thicknesses.

Specification Summary & Compliance

These thread forming tapping screws feature precise 0.164" thread diameter with 18 TPI right-hand threading and Class 2A thread fit for reliable performance. Manufactured to BSD standards with standard oval head profile (0.332" diameter, 0.152" height) and No. 2 Phillips drive. The zinc-plated steel construction meets industry standards for corrosion protection, while the fully threaded 1" length ensures consistent performance across applications. Compliant with relevant industrial specifications for tapping screws in metal joining applications.

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