S-91655A296 Length 1" Tapping Screws

Tapping Screws

0425FA00015 Tapping Screws
0425FA00015 Tapping Screws

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

Part No.
Part No. 0425FA00015
Equivalent to mcmaster :
91655A296

Basic Information

Tapping Screw Type A/AB
Screw Features Flanged
System of Measurement Inch

Head Parameters

Head Type Rounded
Head Height 0.145"
Rounded Head Profile Standard
Rounded Head Style Pan

Dimensions

Length 1"
Flange Diameter 0.499"
Shank Cross Section Round

Thread Parameters

Screw Size No. 12
Thread Diameter 0.216"
Approximate Threads per Inch 11
Thread Direction Right Hand
Threading Fully Threaded

Tip & Drive Parameters

Tip Type Pointed
Drive Style Square
Drive Size No. 3
Drill Bit Size 3/16"
Drill Bit Diameter 0.1875"
Tapping Method Thread Forming

Material & Strength

Material Zinc-Plated Steel

Temperature & Environment

For Use In Sheet Metal

Installation & Application

Maximum Drilling Thickness 0.025"
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
  • Enhanced load distribution through flanged pan head design that prevents pull-through and reduces surface stress
  • Efficient thread forming technology creates strong, permanent threads in sheet metal without chip removal
  • Quick and precise installation with pointed tip and square drive (No. 3) for secure tool engagement and reduced assembly time
  • Maximum holding power achieved through 0.216" thread diameter and 11 threads per inch configuration
  • Versatile compatibility with standard 3/16" drill bits and 0.025" maximum drilling thickness requirements
  • Reliable performance with fully threaded right-hand design ensuring consistent engagement along the entire screw length

Professional Applications & Engineering Value

These No. 12 x 1" zinc-plated steel flanged tapping screws deliver exceptional engineering value in sheet metal applications where vibration resistance and permanent fastening are critical. The thread forming technology (A/AB type) eliminates the need for tapping operations while creating stronger thread engagement through material displacement rather than removal. The flanged pan head design provides superior clamping force distribution, preventing damage to thin sheet materials while the zinc-plated steel construction ensures reliable performance in environments where moisture and corrosion are concerns. With their fully threaded configuration and pointed tip, these industrial fasteners significantly reduce installation time while maintaining consistent holding power across various sheet metal thicknesses up to the specified maximum drilling capacity.

Specification Summary & Compliance

These tapping screws feature precise Class 2A thread tolerances with 0.216" thread diameter and 11 threads per inch configuration. Manufactured to A/AB tapping screw standards with right-hand thread direction and fully threaded shank. The zinc-plated steel material provides corrosion protection while maintaining mechanical strength. Compatible with standard 3/16" drill bits and designed for maximum drilling thickness of 0.025". These industrial fasteners are manufactured in compliance with RoHS and REACH environmental standards for safe use across various industrial applications.

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