: Available in various coatings including zinc (clear, yellow, black), black oxide, cadmium, and multi-layer ceramic topcoats like Accessing the Standard As a copyrighted document from the American Society of Mechanical Engineers (ASME)
Use boolean search operators.
If you need help identifying a specific type of thread-forming screw, you can tell me the head style or application.
The ASME B18.6.4 standard is a critical document for engineers, manufacturers, and quality control professionals involved in fastening and assembly. Developed by the American Society of Mechanical Engineers (ASME), this standard establishes the dimensional, mechanical, and performance requirements for slotted and recessed head tapping screws, as well as metallic drive screws. asme b1864 pdf
The standard outlines a mandatory torque test. The screw is clamped in a test fixture, and torque is applied until failure occurs. The breaking torque must meet or exceed the minimum values specified in the standard's data tables for each given screw size. Importance of Accessing the Official PDF Standard
ASME B18.64 is a critical standard for socket weld fittings used in industrial piping systems. The standard provides detailed requirements for design, materials, testing, and inspection, ensuring that socket weld fittings are safe, reliable, and perform efficiently. The ASME B18.64 PDF is a valuable resource for designers, manufacturers, inspectors, and purchasers of socket weld fittings.
Developed by the American Society of Mechanical Engineers under the accredited procedures of the American National Standards Institute (ANSI) , this standard regulates components used to join sheet metal, plastics, and structural composites. : Available in various coatings including zinc (clear,
The ASME B18.6.4 standard is a foundational document in mechanical engineering and manufacturing. It governs the dimensional, mechanical, and performance requirements for slotted and recessed head tapping screws, metallic drive screws, and thread-forming/thread-cutting screws.
The standard, officially titled "Thread Forming and Thread Cutting Tapping Screws and Metallic Drive Screws (Inch Series)," is a critical technical document for the manufacturing and engineering of mechanical fasteners. While originally a standalone document, parts of this standard were consolidated into ASME B18.6.3 in 2013 to streamline requirements for machine and tapping screws. Scope and Purpose
The standard, titled "Thread Forming and Thread Cutting Tapping Screws and Metallic Drive Screws (Inch Series)," serves as the definitive engineering blueprint for self-tapping fasteners used across global manufacturing, automotive, and structural assembly lines. Sourced directly through the ANSI Webstore or the official ASME Standard Catalog , this technical document details critical tolerances, dimensions, geometry, and performance metrics required to ensure mechanical reliability. For engineers, procurement specialists, and quality control professionals, having an authorized ASME B18.6.4 PDF is essential to eliminate production errors and ensure proper joint integrity. What is the ASME B18.6.4 Standard? Developed by the American Society of Mechanical Engineers
Hexagonal heads designed for wrench or socket driving, offering the highest torque delivery. Drive Types
These fasteners are designed to create their own mating threads (tapping) when driven into a pre-drilled or pre-punched hole, or to cut threads (thread-cutting) into plastics, metals, and other materials. Key Content of the Standard:
: Provides the full publication in PDF format for technical reference.
An authorized separates fasteners into distinct functional classes based on how they interact with host substrates: 1. Thread-Forming Screws