🔥🔥 Don’t Miss Out on Our End of Autumn Sale. If you have any questions, feel free to click the bottom right corner to contact our customer service..

Concat us[email protected]
Shopping Cart

No products in the cart.

🔍
ASME B18.6.3 2024

ASME B18.6.3 2024

$75.42

ASME B18.6.3-2024 Machine Screws, Tapping Screws, and Metallic Drive Screws (Inch Series)

Published By Publication Date Number of Pages
ASME 2024 161
PDF Format Searchable Printable Preview Now
Guaranteed Safe Checkout
Category:

If you have any questions, feel free to reach out to our online customer service team by clicking on the bottom right corner. We’re here to assist you 24/7.
Email:[email protected]

This Standard is intended to cover the complete general and dimensional data for the various types of slotted and recessed head machine screws, tapping screws, and metallic drive screws recognized as American National Standard. Also included are appendices that provide specifications and instructions for the protrusion gaging of flat countersunk head screws; across-corners gaging of hex head screws; penetration gaging and wobble gaging of recessed head screws; approximate hole size for tapping screws; wrench openings for hex and square products; thread dimensions for the No. 0000, No. 000, and No. 00 sizes; 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 product, the dimensions in the tables shall govern over recalculation by formula.

PDF Catalog

PDF Pages PDF Title
4 CONTENTS
8 FOREWORD
10 ASME B18 COMMITTEE ROSTER
11 CORRESPONDENCE WITH THE B18 COMMITTEE
13 ASME B18.6.3-2024 SUMMARY OF CHANGES
16 1 INTRODUCTORY NOTES
1.1 Scope
1.2 Dimensions
1.3 Options
1.4 Responsibility for Modification
1.5 Terminology
1.6 Comparison With ISO
1.7 Referenced Standards
17 1.8 Inspection and Quality Assurance
2 GENERAL DATA FOR MACHINE SCREW AND TAPPING SCREW HEADS
2.1 Heads
18 2.2 Screw Head Types
19 3 GENERAL DATA FOR MACHINE SCREWS
3.1 Machine Screw Threads
3.2 Machine Screw Length of Thread
3.3 Machine Screw Length Measurement
20 3.4 Machine Screw Tolerance on Length
3.5 Machine Screw Diameter of Body
3.6 Machine Screw Points
3.7 Machine Screw Straightness
3.8 Machine Screw Material
3.9 Machine Screw Finish
3.10 Machine Screw Workmanship
3.11 Machine Screw Designation
21 4 GENERAL DATA FOR TAPPING SCREWS
4.1 Tapping Screw Types and Application
22 4.2 Threads and Points
4.3 Tapping Screw Length of Thread
4.4 Tapping Screw Diameter of Body
23 4.5 Tapping Screw Length
4.6 Tapping Screw Tolerance on Length
4.7 Tapping Screw Straightness
4.8 Tapping Screw Materials
24 4.9 Tapping Screw Finish
4.10 Tapping Screw Workmanship
4.11 Performance Tests
25 4.12 Tapping Screw Designation
4.13 Tapping Screw Assembly Considerations
5 GENERAL DATA FOR METALLIC DRIVE SCREWS
26 5.1 Drive Screw Threads
5.2 Drive Screw Length of Thread
5.3 Drive Screw Points
5.4 Drive Screw Tolerance on Length
5.5 Drive Screw Material
5.6 Test Requirements
5.7 Drive Screw Designation
27 Tables
Table 2.2.1-1 Dimensions of Slotted Flat Countersunk Head Screws
30 Table 2.2.1-2 Recess Dimensions for Flat Countersunk Head Screws
32 Table 2.2.1-3 Dimensions of Slotted 100-deg Flat Countersunk Head Screws (Machine Screws Only)
33 Table 2.2.1-4 Recess Dimensions for 100-deg Flat Countersunk Head Screws (Machine Screws Only)
34 Table 2.2.1-5 Dimensions of Slotted Close Tolerance 100-deg Flat Countersunk Head Screws (Machine Screws Only)
35 Table 2.2.1-6 Recess Dimensions for Close Tolerance 100-deg Flat Countersunk Head Screws (Machine Screws Only)
36 Table 2.2.2-1 Dimensions of Slotted Oval Countersunk Head Screws
38 Table 2.2.2-2 Recess Dimensions of Oval Countersunk Head Screws
40 Table 2.2.3-1 Dimensions of Slotted Undercut 82-deg Flat Countersunk Head Screws
42 Table 2.2.3-2 Recess Dimensions for Undercut 82-deg Flat Countersunk Head Screws
44 Table 2.2.3-3 Dimensions of Slotted Undercut Oval Countersunk Head Screws
46 Table 2.2.3-4 Recess Dimensions for Undercut Oval 82-deg Countersunk Head Screws
47 Table 2.2.4-1 Dimensions of Flat Countersunk Trim Head Screws
49 Table 2.2.4-2 Recess Dimensions for Flat Countersunk Trim Head Screws
50 Table 2.2.4-3 Dimensions of Oval 82-deg Countersunk Trim Head Screws
53 Table 2.2.4-4 Recess Dimensions for Oval 82-deg Countersunk Trim Head Screws
55 Table 2.2.5-1 Head Dimensions for Slotted Pan Head Screws
57 Table 2.2.5-2 Dimensions of Type I Cross Recessed Pan Head Screws
58 Table 2.2.5-3 Recess Dimensions for Pan Head Screws (Types IA, III, and VI)
60 Table 2.2.5-4 Recess Dimensions for Combination Slotted-Pan Head Screws
62 Table 2.2.6-1 Dimensions of Slotted Fillister Head Screws
63 Table 2.2.6-2 Recess Dimensions for Fillister Head Screws
65 Table 2.2.6-3 Dimensions of Slotted Drilled Fillister Head Screws (Machine Screws Only)
66 Table 2.2.7-1 Dimensions of Slotted Truss Head Screws
68 Table 2.2.7-2 Recess Dimensions for Truss Head Screws
70 Table 2.2.7-3 Dimensions of Combination Slotted Truss Head Screws
72 Table 2.2.8-1 Dimensions of Slotted Binding Head Screws (Machine Screws Only)
73 Table 2.2.8-2 Recess Dimensions for Binding Head Screws (Machine Screws Only)
74 Table 2.2.9-1 Dimensions of Plain (Unslotted) and Slotted Regular and Large Hex Head Screws
76 Table 2.2.9-2 Recess Dimensions for Indented Regular and Large Hex Head Screws
77 Table 2.2.9-3 Recess Dimensions for Type I Nonindented Regular and Large Hex Head Screws
78 Table 2.2.10-1 Dimensions of Plain and Slotted Hex Washer Head Screws
80 Table 2.2.10-2 Recess Dimensions for Indented Hex Washer Head Screws
81 Table 2.2.10-3 Recess Dimensions for Combination Slotted Type I Indented Hex Washer Head Screws
82 Table 2.2.11-1 Dimensions of Slotted Round Head Screws
84 Table 2.2.11-2 Recess Dimensions for Round Head Screws
85 Table 2.2.11-3 Recess Dimensions for Combination Slotted Round Head Screws
87 Table 2.2.12-1 Dimensions of Slotted Round Washer Head Screws
88 Table 2.2.12-2 Recess Dimensions for Round Washer Head Screws
89 Table 4.1.1.1-1 Dimensions of Threads and Points for Types AB and ABR Thread-Forming Tapping Screws
90 Table 4.1.1.2-1 Dimensions of Threads and Points for Types B and BP Thread-Forming Tapping Screws
91 Table 4.1.1.4-1 Dimensions of Threads and Points for Type A Thread-Forming Tapping Screws
92 Table 4.1.2.1-1 Dimensions of Threads and Points for Types BF and BT Thread-Cutting Tapping Screws
93 Table 4.1.2.2-1 Dimensions of Threads and Points for Types D, F, G, and T Thread-Cutting Tapping Screws
95 Table 4.1.3-1 Dimensions of Type TRS Tapping Screws
96 Figures
Figure 4.3.1-1 Types A, AB, B, BF, BP, and BT
Table 4.3.1-1 Thread Lengths for Types A, AB, B, BF, BP, and BT Tapping Screws
97 Figure 4.3.2-1 Types C, D, F, G, T, and TRS
Table 4.3.2-1 Thread Lengths for Types C, D, F, G, T, and TRS Tapping Screws
98 Table 4.11.1-1 Standard Test-Plate Thickness and Hole Sizes for Drive-Test Inspection of Tapping Screws
99 Table 4.11.2-1 Maximum Drive Torque for Type TRS Tapping Screws
100 Figure 4.11.3-1 Typical Torsional Strength Test Fixture
Table 4.11.3-1 Torsional Strength Requirements for Tapping Screws
101 Table 5-1 Dimensions of Round Head Type U Metallic Drive Screws
102 Figure I-1 Protrusion Gage
MANDATORY APPENDICES
MANDATORY APPENDIX I PROTRUSION GAGING OF FLAT COUNTERSUNK HEADS
103 Figure II-1 Typical Gaging Fixture
MANDATORY APPENDIX II ACROSS-CORNERS GAGING OF HEX HEADS
104 MANDATORY APPENDIX III GAGING OF RECESSED HEADS, TYPES I, IA, AND III
III-I PENETRATION GAGING
III-2 FIT GAGING ON TYPE III RECESSES
105 Figure III-1-1 Penetration Gage for Types I, IA, and III Recesses
106 Table III-1-1 Dimensions of Gage Heads for Types I, IA, and III Recesses
107 Table III-1-2 Dimensions of Gage Heads for Type I Recess
108 Table III-1-3 Dimensions of Gage Points for Type IA Recess
109 Table III-1-4 Dimensions of Type III Square Penetration Gage Points
Table III-1-5 Dimensions of Type III Square Fit Gage Points
110 MANDATORY APPENDIX IV WOBBLE GAGING OF RECESSED HEADS
111 Figure IV-1 Wobble Gaging Fixture
Table IV-1 Gage Body Diameters
112 Table IV-2 Gaging Limits for Types I, IA, and III Recesses
113 Table V-1 Dimensions for No. 0000, No. 000, and No. 00 Thread Sizes
MANDATORY APPENDIX V DIMENSIONS FOR NO. 0000, NO. 000, AND NO. 00 THREAD SIZES
114 MANDATORY APPENDIX VI DIMENSIONS OF TYPE C TAPPING SCREWS
115 Table VI-1 Dimensions of Threads and Points for Type C Thread-Forming Tapping Screws
116 MANDATORY APPENDIX VII TYPE VI RECESS GAGE REQUIREMENTS
VII-1 SCOPE
VII-2 DEFINITION
VII-3 GAGE TYPE
VII-4 INSPECTION
VII-5 RECESS ACCEPTABILITY
VII-6 RECESS UNACCEPTABILITY
117 Table VII-2-1 Dimensions for Type VI Recess Gage Elements
119 Table A-1 Dimensions of Header Points for Machine Screws Before Threading
NONMANDATORY APPENDICES
NONMANDATORY APPENDIX A DIMENSIONS OF HEADER POINTS FOR MACHINE SCREWS BEFORE THREADING
121 NONMANDATORY APPENDIX B DETERMINATION OF MAXIMUM EFFECTIVE DESIGN GRIP LENGTHS
122 Table B-1 Constants for Determining Maximum Effective Design Grip Length on Types AB, A, and BP Tapping Screws
123 NONMANDATORY APPENDIX C FORMULAS FOR DIMENSIONS
124 Table C-1 Flat Countersunk Head Screws
125 Table C-2 Undercut Flat Countersunk Head Screws
126 Table C-3 100-deg Flat Countersunk Head Screws
Table C-4 Close Tolerance 100-deg Flat Countersunk Head Screws
127 Table C-5 Oval Countersunk Head Screws
Table C-6 Undercut Oval Countersunk Head Screws
128 Table C-7 Pan Head Screws
Table C-8 Truss Head Screws
129 Table C-9 Fillister Head Screws
Table C-10 Drilled Fillister Head Screws
Table C-11 Binding Head Screws
130 Table C-12 Round Head Screws
131 Table C-13 Flat and Oval Countersunk Trim Head Screws
133 Table C-14 Slot Width in Slotted Head Screws
Table C-15 Machine Screw Nuts
134 Figure D-1 Drilled Hole
Figure D-2 Cored Hole
Figure D-3 Punched Hole
Figure D-4 Hand-Pierced Hole
NONMANDATORY APPENDIX D APPROXIMATE HOLE SIZES FOR TAPPING SCREWS
135 Figure D-5 Type I Extruded Hole
Figure D-6 Type II Extruded Hole
136 Table D-1 Approximate Hole Sizes for Steel Type AB Thread-Forming Tapping Screws
138 Table D-2 Approximate Hole Sizes for Steel Types B and BP Thread-Forming Tapping Screws
141 Table D-3 Approximate Hole Sizes for Steel Types BF and BT Thread-Cutting Tapping Screws
143 Table D-4 Approximate Hole Sizes for Steel Types D, F, G, and T Thread-Cutting Tapping Screws
147 Table D-5 Approximate Hole Sizes for Steel Type A Thread-Forming Tapping Screws
149 Table D-6 Approximate Hole Sizes in Steel Sheet Metals for Steel Type C Thread-Forming Tapping Screws
151 Table D-7 Approximate Hole Sizes for Thread Rolling Screws
157 Table E-1 Wrench Openings for Hex Head Screws, and Square and Hex Nuts
NONMANDATORY APPENDIX E WRENCH OPENINGS FOR HEX HEAD SCREWS, AND SQUARE AND HEX NUTS

Related products

ASME B18.6.3 2024
$75.42