{"id":443643,"date":"2024-10-20T08:33:57","date_gmt":"2024-10-20T08:33:57","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/asme-b94-9-2008-r2023\/"},"modified":"2024-10-26T16:00:22","modified_gmt":"2024-10-26T16:00:22","slug":"asme-b94-9-2008-r2023","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/asme\/asme-b94-9-2008-r2023\/","title":{"rendered":"ASME B94.9 2008 R2023"},"content":{"rendered":"

This Standard covers various designs of standard taps, nomenclature and definitions; the standard system of marking; and dimensions and tolerance tables for the following types and styles of taps: Type: Standard straight thread, general purpose; Tables 2 and 2A. Style: Straight fluted, Spiral fluted, Spiral point, with Straight flutes, Spiral point only, no Straight flutes. Applicable Sections(s): 3.1, 3.4 and 3.5, 3.2, 3.3. Type: Pipe, taper thread; Table 7, Pipe, Straight fluted. Applicable Section(s) 3.8; Table 8, Pulley; Table 5, Screw thread insert; Table 2B, Thread forming: Tables 2 and 2A. Style: Straight fluted and Straight lobes. Applicable Sections(s): 3.7, 3.1 and 3.6.<\/p>\n

PDF Catalog<\/h4>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
5<\/td>\nTABLES <\/td>\n<\/tr>\n
7<\/td>\nFOREWORD <\/td>\n<\/tr>\n
8<\/td>\nCOMMITTEE ROSTER <\/td>\n<\/tr>\n
9<\/td>\nCORRESPONDENCE WITH THE B1 COMMITTEE <\/td>\n<\/tr>\n
11<\/td>\n1 GENERAL
1.1 Scope
1.2 Reference Standards for Screw Thread Nomenclature and Forms of Thread
1.3 Basic Form of Thread
1.4 Tap Pitch Diameter Size
2 TAP CATEGORIZATION <\/td>\n<\/tr>\n
12<\/td>\nFIGURES
\n
Fig. 1 Illustrations of Terms Applying to Taps <\/td>\n<\/tr>\n
14<\/td>\n2.1 Type
2.2 Style
2.3 Size and Chamfer
2.4 Blank Design
3 TAP STYLES
3.1 Straight Flute Style Taps
3.2 Spiral Pointed Style Taps
3.3 Spiral Pointed Only Style Taps
3.4 Regular Spiral Fluted Style Taps
3.5 Fast Spiral Fluted Style Taps <\/td>\n<\/tr>\n
15<\/td>\nFig. 2 Straight Flute Style Taps
Fig. 3 Spiral Pointed Style Taps
Fig. 4 Spiral Pointed Only Style Taps
Fig. 5 Regular Spiral Fluted Style Taps <\/td>\n<\/tr>\n
16<\/td>\n3.6 Thread Forming Type Taps
3.7 Pulley Type Taps
3.8 Pipe Type Taps
Fig. 6 Fast Spiral Fluted Style Taps
Fig. 7 Thread Forming Type Taps
Fig. 8 Pulley Type Taps <\/td>\n<\/tr>\n
17<\/td>\n4 STANDARD SYSTEM OF TAP MARKING
4.1 Ground Thread Taps, Inch Screw Threads: UN Profile
4.2 Ground Thread Taps, Metric Screw Threads: M Profile
5 STANDARD SYSTEM OF TAP THREAD UNITS AND IDENTIFICATION, GROUND THREAD
5.1 Tap Thread Limits Unified Inch Screw Threads
5.1.1 H or L Limits.
5.1.1.1 Optional Marking.
5.1.2 Oversize or Undersize.
Fig. 9 Pipe Type Taps <\/td>\n<\/tr>\n
18<\/td>\n5.1.3 Special Tap Pitch Diameter.
5.1.4 Left-Hand Taps.
5.2 Metric Screw Threads: M Profile
5.2.1 D or DU Limits.
5.2.1.1 Optional Marking.
5.2.2 Special Tap Pitch Diameter.
5.2.3 Left-Hand Taps.
5.2.4 Screw Thread Inserts STI.
6 GLOSSARY OF TAP ELEMENTS AND OTHER TERMS RELATED TO SCREW THREADS <\/td>\n<\/tr>\n
29<\/td>\nTable 1 Thread Series Designations <\/td>\n<\/tr>\n
30<\/td>\nTable 2 Standard Tap Dimensions <\/td>\n<\/tr>\n
33<\/td>\nTable 3 Optional Neck and Optional Shortened Thread Length (Tap Dimensions) <\/td>\n<\/tr>\n
35<\/td>\nTable 4 Standard Tap Dimensions [Screw Thread Inserts (STI): Machine Screw and Fractional Size, Taps] <\/td>\n<\/tr>\n
37<\/td>\nTable 5 Standard Tap Dimensions [Screw Thread Inserts (STI), Metric Size Taps] <\/td>\n<\/tr>\n
39<\/td>\nTable 6 Straight and Taper Pipe Taps <\/td>\n<\/tr>\n
41<\/td>\nTable 7 Tap Thread Limits and Tolerances, Formulas for Unified Inch Screw Threads (Ground Thread) <\/td>\n<\/tr>\n
43<\/td>\nTable 8 Standard Chamfers for Thread Cutting Taps <\/td>\n<\/tr>\n
44<\/td>\nTable 9 Standard Entry Taper Lengths for Thread Forming Taps <\/td>\n<\/tr>\n
45<\/td>\nTable 10 Tap Thread Limits and Tolerances, Formulas for Metric Threads (Ground Thread) <\/td>\n<\/tr>\n
47<\/td>\nTable 11 Standard Number of Flutes <\/td>\n<\/tr>\n
49<\/td>\nTable 12 Tap Thread Limits: Machine Screw Sizes, Ground Thread <\/td>\n<\/tr>\n
50<\/td>\nTable 13 Tap Thread Limits: Fractional Sizes, Ground Thread <\/td>\n<\/tr>\n
52<\/td>\nTable 14 Tap Thread Limits: Metric Sizes, Ground Thread <\/td>\n<\/tr>\n
54<\/td>\nTable 15 Runout of Tap Elements <\/td>\n<\/tr>\n
55<\/td>\nTable 16 Pulley Taps, Fractional Size (High-Speed Steel, Ground Thread) <\/td>\n<\/tr>\n
56<\/td>\nTable 17 Taper Pipe Tap Thread Limits (Ground Thread; Ground Thread for NPT, NPTF, and ANPT) <\/td>\n<\/tr>\n
58<\/td>\nTable 18 Straight Pipe Tap Thread Limits: NPSC\/NPSM, Ground Thread [American National Standard Straight Pipe Thread Form (NPSC, NPSM)] <\/td>\n<\/tr>\n
59<\/td>\nTable 19 Straight Pipe Tap Thread Limits: NPSF, Ground Thread [Dryseal American National Standard Straight Pipe Thread Form (NPSF)] <\/td>\n<\/tr>\n
60<\/td>\nTable 20 Tap Thread Limits [Screw Thread Inserts (STI), Ground Thread, Machine Screw, and Fractional Size] <\/td>\n<\/tr>\n
62<\/td>\nTable 21 Tap Thread Limits [Screw Thread Inserts (STI), Ground Thread, Metric Size (mm)] <\/td>\n<\/tr>\n
63<\/td>\nNONMANDATORY APPENDICES
\n
A TAP SIZE RECOMMENDATIONS <\/td>\n<\/tr>\n
82<\/td>\nB STANDARD SYSTEM OF TAP MARKING CUT THREAD TAPS <\/td>\n<\/tr>\n
87<\/td>\nERRATA to ASME B94.9-2008 Taps: Ground Thread With Cut Thread Appendix (Inch and Metric Sizes) <\/td>\n<\/tr>\n
88<\/td>\nFig. 6 Fast Spiral Fluted Style Taps <\/td>\n<\/tr>\n
89<\/td>\nTable 10 Tap Thread Limits and Tolerances, Formulas for Metric Threads (Ground Thread) <\/td>\n<\/tr>\n
90<\/td>\nTable 13 Tap Thread Limits: Fractional Sizes, Ground Thread (Unified and American National Thread Forms, Standard Thread Limits) (Cont\u2019d) <\/td>\n<\/tr>\n
91<\/td>\nTable A-1 Tap Size Recommendations for Classes 2B and 3B Unified Inch Screw Threads (Machine Screw and Fractional Sizes) <\/td>\n<\/tr>\n
92<\/td>\nTable A-2 Tap Size Recommendations for Class 6H Metric Screw Threads <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

ASME B94.9-2008-R2023 Taps: Ground Thread with Cut Thread Appendix (Inch and Metric Sizes)<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
ASME<\/b><\/a><\/td>\n2008<\/td>\n92<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":443650,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2643],"product_tag":[],"class_list":{"0":"post-443643","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-asme","8":"first","9":"instock","10":"sold-individually","11":"shipping-taxable","12":"purchasable","13":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/443643","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media\/443650"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=443643"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=443643"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=443643"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}