The standard specifies dimensions for several drive configurations: Phillips (Type I) Frearson (Type II) Pozidriv (Type IA) Hex socket Mechanical and Performance Requirements
Requirements for surface hardening to ensure the screw can pierce or cut through the host material without stripping its own threads.
Provides a comprehensive database of industrial standards.
Flat countersunk, oval, pan, fillister, hex, and hex washer heads. asme b1864 pdf
The standard ensures that fasteners produced by different manufacturers around the world meet identical dimensions and performance metrics. Core Fastener Types Covered
It is essential to obtain the official, copyrighted PDF from an authorized distributor to ensure you are working with the correct, accurate, and legally authentic document. ASME’s standards, like all technical codes, are protected by copyright law. The official PDF version you purchase is typically a "secure PDF" which will require a free plugin (like FileOpen) to view, and it prevents unauthorized reproduction or distribution.
| Feature | ASME B18.6.4 | ASME B18.64 | | :--- | :--- | :--- | | | Thread Forming and Thread Cutting Tapping Screws and Metallic Drive Screws (Inch Series) | Self-Drilling Tapping Screws (Inch Series) | | Main Application | Standardized dimensions and specifications for tapping screws and metallic drive screws. | Standardized dimensions and performance requirements for self-drilling tapping screws (drill screws). | | Key Sections | General data, dimensional data for various head types (slotted, recessed), thread forming/thread cutting screw types, metallic drive screws, test methods. | Head styles, point types, drill capacities, dimensional data, mechanical properties, performance test requirements. | | Replaces | Supersedes SAE J 478 (07/2004). Later incorporated into ASME B18.6.3 (06/2011) . | Standard designation for self-drilling tapping screws (often cited alongside DIN 7504) . | The standard ensures that fasteners produced by different
The ASME B18.6.4 standard serves as a cornerstone document for the design, manufacturing, and deployment of tapping and drive screws. By establishing clear guidelines for everything from head geometry to torsional strength, it guarantees interchangeability and structural reliability across global supply chains. Utilizing a legitimate copy of the ASME B18.6.4 PDF ensures that your engineering designs, manufacturing processes, and quality control metrics align perfectly with industry-recognized best practices.
These feature cutting edges or slots that physically carve out material, creating chips as they are driven.
The ASME B18.6.4 standard regulates mechanical fasteners designed to create or cut their own mating threads when driven into a pre-drilled or punched hole. Unlike standard machine screws that require a pre-threaded nut or tapped hole, tapping screws standardized under ASME B18.6.4 consolidate drilling, tapping, and fastening into highly efficient production steps. Scope of the Document The official PDF version you purchase is typically
In the world of mechanical engineering, precision isn’t just a goal—it’s a requirement. Among the dense library of technical documentation, the standard stands as a foundational pillar for the manufacturing and application of threaded fasteners. If you’ve ever wondered why a specific screw fits perfectly into a pre-drilled hole or how manufacturers ensure a bolt won't shear under pressure, the answer likely lies within these pages. What is ASME B18.6.4?
This standard provides comprehensive general and dimensional data for various slotted and recessed head fasteners. ASME B18.6.4 Self-Tapping Screw Specs | PDF - Scribd
Navigating ASME fastener standards starts with using the correct number. For self-drilling screws (drill screws), the correct standard is . For thread forming, thread cutting tapping screws, and metallic drive screws, the historical standard is ASME B18.6.4 , though it is now incorporated into ASME B18.6.3 .
Commonly used in sheet metal, thin metals, and plastics.