ASME B18.6.2:2020 pdf download.SQUARE HEAD SET SCREWS AND SLOTTED HEADLESS SET SCREWS (INCH SERIES).
ASME B18.6.2 covers the complete general and dimensional data for square head and slotted headless set screws. Also included is Nonmandatory Appendix A covering the formulas on which dimensional data are based, and Nonmandatory Appendix B covering wrench openings for square head set screws. Where questions arise concerning acceptance of a product, the dimensions in the tables shall supersede those recalculated by formula.
1.2 Comparison to ISO Standards
There is no comparable ISO standard for the fasteners specified by this Standard.
1.3 Dimensions
Unless otherwise specified, all dimensions are in inches and shall apply before coating.
1.4 Options
Options, where specified, shall be at the discretion of the manufacturer unless otherwise agreed upon by the manufacturer and the purchaser.
1.5 TerminoLogy
For definitions of terms relating to fasteners or to component features thereof used in this Standard, refer to ASME B18.12, Glossary of Terms for Mechanical Fasteners.
slotted headless set screw: screw with threads extending over the entire length with a point designed to bear against a mating part at one end and a slot for driving at the opposite end.
square head set screw: screw with threads extending close to the head at one end and a point designed to bear against a mating part at the opposite end. The head has a rounded top surface and four flat sides with an underhead construction that may be flat, conical, or rounded into a relief in the screw shank.
1.6 References
The following is a list of publications referenced in this Standard. Unless otherwise specified, the latest edition shall be used.
ASME B1.1, Unified Inch Screw Threads (UN, UNR,and UNJ Thread Forms)
ASME B1.3, Screw Thread Gaging Systems for Acceptability: Inch and Metric Screw Threads (UN, UNR, UNJ, M, and MJ)
ASM E B 18.12, Glossary of Terms for Mechanical Fasteners
ASME B18.18, Quality Assurance for Fasteners
ASME B 18.24, Part Identifying Number (PIN) Code System Standard for BiB Fastener Products
Publisher: The American Society of Mechanical Engineers (ASME), Two Park Avenue, New York, NY 10016-5990 (www.asme.org)
ASTM A380/A380M, Standard Practice for Cleaning, Descaling, and Passivation of Stainless Steel Parts, Equipment, and Systems
ASTM F1941/F1941M, Standard Specification for Electrodeposited Coatings on Mechanical Fasteners, Inch and Metric
Publisher: American Society for Testing and Materials.ASME B18.6.2 pdf download.