To obtain a legitimate, fully compliant copy of the ASME B18.6.4 PDF:
: Provides the full publication in PDF format for technical reference.
Be extremely cautious. Used books of ASME standards are obsolete the moment the new edition is released. While a physical book from 2010 might be okay for historical reference, you cannot use it for new construction. PDFs sold on these marketplaces are almost always counterfeit.
| | Key Details & Pricing | Additional Options | | :--- | :--- | :--- | | Techstreet (Accuris) | Offers the Printed Edition + PDF package for a single payment. | Multi-User PDF for teams of up to 9 people. | | CodeWebStore | Often has the lowest price, with the standard listed for $39.00 USD . | Printable PDF with immediate download after purchase. | | ANSI Webstore | Official American National Standards Institute (ANSI) channel. Full product details available. | Corporate and multi-user licensing options may be available on request. | asme b1864 pdf
A major part of the B18.6.4 documentation revolves around the distinction between cutting and forming. Thread Forming (A/AB/B) Thread Cutting (1/23/25/F) Deforms material to form threads. Removes material to create threads. Material Softer materials, sheet metal. Harder materials, plastics, metals. Hole Size Smaller (higher torque required). Larger (easier installation). Key Use High pull-out strength. Reduced stress on brittle materials. Where to Obtain the ASME B18.6.4 PDF
You will find dozens of websites offering a "free ASME B1864 PDF download." Here is why:
: Specifies requirements for materials such as steel (often quenched and tempered) and various grades of stainless steel, such as AISI 410 . Technical Specifications To obtain a legitimate, fully compliant copy of the ASME B18
These screws do not have cutting edges. They function by plastic deformation of the host material.
Because ASME standards are protected under copyright law, individuals seeking the full technical tables, exact tolerances, and formal appendices must obtain an official copy.
The B18.6.4-1998 (R2005) standard was consolidated in February 2013 into ASME B18.6.3 , which now includes machine screws, tapping screws, and metallic drive screws. Helpful Reports & Resources ASME B18.6.4 Tapping Screws Standard | PDF - Scribd While a physical book from 2010 might be
Decades ago, ASME had a wider variety of letter-number combinations that have since been absorbed. However, a search of the ASME historical archive reveals no record of a stand-alone B1864.
Beyond the basic dimensions for screw heads and lengths, the standard includes several critical sections in its appendixes, such as: