S-93846A126 Length 1" Tapping Screws

Tapping Screws

0474FA00015 Tapping Screws
0474FA00015 Tapping Screws

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

Part No.
Part No. 0474FA00015
Equivalent to mcmaster :
93846A126

Basic Information

Tapping Screw Type BSD
System of Measurement Inch

Head Parameters

Head Type Oval
Head Diameter 0.462"
Head Height 0.224"
Oval Head Profile Standard
Oval Top Height 0.125"

Dimensions

Length 1"
Shank Cross Section Round

Thread Parameters

Screw Size 1/4"
Thread Diameter 0.25"
Approximate Threads per Inch 14
Thread Direction Right Hand
Threading Fully Threaded

Tip & Drive Parameters

Tip Type Drilling
Drive Style Phillips
Drive Size No. 3
Drill Tip Type No. 3
Drill Tip Length 25/64"
Countersink Angle 82°
Tapping Method Thread Forming

Material & Strength

Material 18-8 Stainless Steel

Temperature & Environment

For Use In Steel, Sheet Metal
REACH Compliant
RoHS Compliant

Installation & Application

Maximum Drilling Thickness 0.22"
Technical Drawings No drawings available at the moment, will be launched soon
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Key Features & Benefits at a Glance

  • Eliminates pre-drilling requirements with a self-drilling tip that penetrates up to 0.22" thickness in steel and sheet metal, saving time and labor costs.
  • Superior corrosion resistance from 18-8 Stainless Steel construction, ensuring long-term reliability in demanding industrial environments.
  • Secure and flush installation with an oval head and 82° countersink angle, providing a smooth finish and reducing snag risks.
  • Efficient driving and reduced cam-out with a Phillips No. 3 drive, allowing for high-torque application and consistent seating.
  • Strong, permanent fastening through thread forming (BSD type) action, which creates precise, durable threads in the base material.
  • Full-length thread engagement for maximum grip and load distribution along the entire 1" length, enhancing joint integrity.
  • Compliance with environmental standards including RoHS 3 and REACH, ensuring safe, sustainable use in global supply chains.

Professional Applications & Engineering Value

These 1/4"-14 thread tapping screws are precision-engineered for robust fastening in steel and sheet metal assemblies, commonly used in HVAC, automotive framing, and electrical enclosure manufacturing. The 18-8 Stainless Steel material offers excellent resistance to oxidation and chemical exposure, critical for outdoor or corrosive settings. The integrated drilling tip and thread forming design eliminate the need for separate drilling and tapping steps, reducing assembly time and tooling costs while minimizing metal shavings. With a fully threaded right-hand thread and Phillips drive, these screws ensure quick installation and reliable performance in high-vibration applications, supporting efficient production lines and durable end-products.

Specification Summary & Compliance

This oval head tapping screw adheres to standard inch measurements with a 1/4" thread diameter and 14 threads per inch. It features a standard oval head profile, No. 3 Phillips drive, and is fully threaded for consistent engagement. Manufactured to precise dimensional tolerances typical for thread-forming screws, it complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from hazardous substances and suitable for industrial use worldwide.

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