ASME B18.24 2020

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ASME B18.24 – 2020 Part Identifying Number (PIN) Code System Standard for B18 Fastener Products

Published By	Publication Date	Number of Pages
ASME	2020

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Category: ASME

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Description

This Standard is intended to provide all users (manufacturers, distributors, design and configuration, parts control, inventory control, test and maintenance functions) with the capability to identify externally threaded, internally threaded, and non-threaded fastener products by a pre-selected order of coding as specified herein. The B18 PIN is a self-contained code, with distinct identification linkage to individual ASME B18 fastener product standards. The PIN code concept provides for direct traceability back to the applicable B18 product standard. In case of conflict with this document and B18 product standard, the B18 product standard shall take precedence. This Standard is not intended for use as a substitute for the correct usage of the B18 standards for fastener selection and specification. The PIN code is intended as an alternative to the plain text product callout as prescribed in the “Designation” or “Ordering” section of the source B18 product standard. The existence of a PIN code for B18 fastener description is not intended to imply that all products described are available. A few B18 fasteners cannot be thoroughly identified using the 18 digit system defined in this standard. If the user does not find the PIN needed in the body of this standard consult the Appendix where special PIN systems have been created to specifically identify those items. If the sought after PIN for the desired B18 fastener is not in the Appendix, notice should be sent to the secretary of B18 so that the item can be addressed in the next revision of this standard.

PDF Catalog

PDF Pages	PDF Title
4	CONTENTS
7	FOREWORD
8	COMMITTEE ROSTER
9	CORRESPONDENCE WITH THE B18 COMMITTEE
11	1 INTRODUCTORY NOTES 2 GENERAL GUIDANCE
12	3 PIN CODE STRUCTURE
14	Tables Table 1-1 Fastener Family and Type/Base PIN
35	Table 2-1 Thread Type Table 2-2 Thread and Point Options for Tapping Screws Table 3-1 Inch Thread Table 3-2 Inch Size
36	Table 3-3 Metric Thread
37	Table 3-4 Metric Size
38	Table 3-5 Miniature Screw Thread Table 3-6 Inch Tapping Screw Thread
39	Table 3-7 Metric Tapping Screw Thread Table 3-8 Inch Hex SocketHead Shoulder Screw Size Table 3-9 Metric Hex Socket Head Shoulder Screw Size Table 3-10 Inch Spline Socket Set Screw Thread Table 3-11 Inch Trim Head Machine Screw Size
40	Table 3-12 Inch Wood Screw Thread Table 3-13 Inch Lag Screw Thread Table 3-14 Inch Rivet Size Weight Table 3-15 Inch Rivet SizeNumber Table 3-16 Inch Rivet Size 1 Table 3-17 Inch Rivet Size/Length
41	Table 3-18 Inch Pin Size 1 Table 3-19 Inch Pin Size 2 Table 3-20 Retaining Ring SizeNumber
43	Table 3-21 Inch Retaining Ring Size
44	Table 3-22 Inch Washer Size 1
45	Table 3-23 Inch Washer Size 2 Table 3-24 Inch Washer Size 3
46	Table 3-25 Inch Washer Size 4 Table 3-26 Metric Washer Size 1
47	Table 3-27 Metric WasherSize 2 Table 3-28 Metric Key Size 1
48	Table 3-29 Metric Key Size 2 Table 4-1 Inch Length/Other
50	Table 4-2 Metric Length/Other
51	Table 4-3 Inch Miniature ScrewLength
52	Table 4-4 Insert Length Table 4-5 Inch Pin Length Table 4-6 Inch Eyebolt FullThread Length
53	Table 5-1 Material and Treatment: ASTM Material Specifications
92	Table 5-2 Material and Treatment: UNS Carbon and Alloy Steels
98	Table 5-3 Material and Treatment: UNS Heat and Corrosion Resisting Steels
103	Table 5-4 Material and Treatment: UNS Nonferrous Materials
106	Table 5-5 Material and Treatment: SAE Material Specifications
107	Table 5-6 Material and Treatment: ISO Material Specifications
108	Table 5-7 Material and Treatment: IFI Material Specifications Table 5-8 Material and Treatment: B18.16.1M Table 5-9 Material and Treatment: B18.6.6
109	Table 6-1 Plating, Coating, and Passivation: Plain, Unfinished Table 6-2 Plating, Coating, and Passivation: ASTM Finish Specifications
127	Table 6-3 Plating, Coating, and Passivation: Government Finish Specifications
128	Table 6-4 Plating, Coating, and Passivation: SAE Finish Specifications
129	Table 6-5 Plating, Coating, and Passivation: ISO Finish Specifications
130	Table 7-1 Plain: No Additional Features Table 7-2 Miscellaneous Features for Externally Threaded Fasteners Table 7-3 General Point Options Table 7-4 Features for Metric Flange Screws Table 7-5 Features for Metric 12-Spline Screws Table 7-6 Neck Options for Large Rivets Table 7-7 Cotter Pin Type Table 7-8 Pin Type Table 7-9 SEMs Washer ComponentsPIN Table 7-10 Wood Screw Thread Types
131	Table 7-11 Miscellaneous Features for Socket Head Cap Screws Table 7-12 Self-Locking Elements for Set Screws Table 7-13 Thread Class for Track Bolts and Nuts Table 7-14 Alternate Points for Thumb and WingScrews (ASME B18.6.8)
133	NONMANDATORY APPENDIX A
134	Fig. A-1 Instructions
138	NONMANDATORY APPENDIX B Table B-1 Fastener Family Table B-2 Fastener Type: Externally Threaded
152	Table B-3 Fastener Type: Internally Threaded and Nonthreaded
153	Table B-4 Thread Series: Externally Threaded Table B-5 Thread Series: Internally Threaded Table B-6 Inch Size: Externally Threaded Table B-7 Inch Size: Internally Threaded
154	Table B-8 Metric Size: Externally Threaded Table B-9 Metric Size: Internally Threaded Table B-10 Inch Miniature Screw Size Table B-11 Inch Length: Externally Threaded Table B-12 Metric Length:Externally Threaded
155	Table B-13 Inch Miniature Screw Length Table B-14 Length: Internally Threaded Table B-15 -133 Dimensions/Other Characteristics: Nonthreaded
170	Table B-134 Material and Treatment A
173	Table B-135 Material and Treatment B
175	Table B-136 Plating, Coating, and Passivation
176	Table B-137 Additional Features:Externally Threaded Table B-138 Additional Features:Internally Threaded Table B-139 Additional Features:Nonthreaded Table B-140 Cross Reference:Table 2-2 Tapping Screw Point AB Table B-141 Cross Reference:Table 2-2 Tapping Screw Point B Table B-142 Cross Reference:Table 2-2 Tapping Screw Point BF
177	Table B-143 Cross Reference:Table 2-2 Tapping Screw Point BP Table B-144 Cross Reference:Table 2-2 Tapping Screw Point BT Table B-145 Cross Reference:Table 2-2 Tapping Screw Point C Table B-146 Cross Reference:Table 2-2 Tapping Screw Point D Table B-147 Cross Reference:Table 2-2 Tapping Screw Point F Table B-148 Cross Reference:Table 2-2 Tapping Screw Point G Table B-149 Cross Reference:Table 2-2 Tapping Screw Point T Table B-150 Cross Reference:Table 2-2 Tapping Screw Point U Table B-151 Bridge to Table 3-6 for AB, B, BF,BP, BT Table B-152 Bridge to Table 3-6 for C, D, F, G, T Table B-153 Bridge to Table 3-7 for AB, B, BF, BT Table B-154 Bridge to Table 3-7 for D, F, T Table B-155 Bridge toTable 3-10 Table B-156 Bridge toTable 3-12 Table B-157 Bridge toTable 3-13 Table B-158 Cross Reference:Table 7-9 Washer Component 1 Table B-159 Cross Reference:Table 7-9 Washer Component 2 Table B-160 Cross Reference:Table 7-9 Washer Component 3 Table B-161 Cross Reference:Table 7-9 Washer Component 4 Table B-162 Cross Reference:Table 7-9 Washer Component 5 Table B-163 Cross Reference:Table 7-9 Washer Component 6 Table B-164 Cross Reference:Table 7-9 Washer Component 7 Table B-165 Cross Reference:Table 7-9 Washer Component 8
178	Table B-166 Cross Reference:Table 7-9 Washer Component 9 Table B-167 Cross Reference:Table 7-9 Washe rComponent 10 Table B-168 Cross Reference:Table 7-9 Washer Component 11 Table B-169 Cross Reference:Table 7-9 Washer Component 12 Table B-170 Bridge to Table 3-11 Table B-171 Bridge to Table 3-4 Table B-172 Bridge to Table 7-10 Table B-Index B18.24 Legacy Table References From B18.24.1,B18.24.2, and B18.24.3
182	NONMANDATORY APPENDIX C
183	Fig. C-1 Part Identification Number (PIN) System for Bent Bolts
184	Table C-1 Materials for Bent Bolts
185	Table C-2 Finish Designations for Bent Bolts