ASME B18.6.4-1999
Thread Forming And Thread Cutting Tapping Screws And Metallic Drive Screws, Inch Series

Standard No.

ASME B18.6.4-1999

Release Date

1999

Published By

American Society of Mechanical Engineers (ASME)

Status

Be replaced 1998-01

Replace By

ASME B18.6.4-1998(R2005)

Latest

ASME B18.6.4-1998(R2005)

Replace

ASME B18.6.4:1998

Scope

This standard covers the complete general and dimensional data for the various types of slotted and recessed head tapping screws and metallic drive screws. Also included are appendixes which provide specifications and instructions for protrusion gaging of flat countersunk head screws, across corners gaging of hex head screws, penetration and wobble gaging of recessed head screws, approximate hole sizes, wrench openings for hex head products, means for determining effective grip lengths on screws, documentation for screw types and head types relegated to not-recommended or limited usage status, and formulas on which dimensional data are based. It shall be understood, however, that where questions arise concerning acceptance of products, the dimensions in the tables shall govern over recalculation by formula.

ASME B18.6.4-1999 history

• 0000 ASME B18.6.4-1998(R2005)
• 1999 ASME B18.6.4-1999 Thread Forming And Thread Cutting Tapping Screws And Metallic Drive Screws, Inch Series
• 1998 ASME B18.6.4-1998 Thread Forming and Thread Cutting Tapping Screws and Metallic Drive Screws (Inch Series) [Superseded: SAE J478A]
• 1981 ASME B18.6.4-1981 Thread forming and thread cutting tapping screws and metallic drive screws (Inch series)
• 1966 ASME B18.6.4-1966 Thread Forming and Thread Cutting Tapping Screws and Metallic Drive Screws, Inch Series

ASME B18.6.4-1999 -All Parts