ASME B18.3 2012

$98.04

ASME B18.3 Socket Cap, Shoulder, Set Screws, and Hex Keys (Inch Series)

Published By	Publication Date	Number of Pages
ASME	2012	68

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Description

This Standard covers complete general and dimensional data for various types of hexagon and spline (luted) socket cap screws, shoulder screws, set screws, and hexagon and spline keys. Also included are appendices that provide specifications for hexagon and spline socket gages and gaging, tables showing applicability of keys and bits to various socket screws types and sizes, drill and couterbore sizes for socket head cap screws, and formulas on which dimensional data are based. However, where questions arise concerning acceptance of product, the dimensions in the tables shall govern over recalculation by formula. The inclusion of dimensional data in this Standard is not intended to imply that all of the products described are stock production sizes. Consumers should consult with manufacturers concerning lists of stock production sizes.

PDF Catalog

PDF Pages	PDF Title
5	CONTENTS
6	FOREWORD
8	ASME B18 COMMITTEE ROSTER
9	CORRESPONDENCE WITH THE B18 COMMITTEE
11	1 INTRODUCTORY NOTES 1.1 Scope 1.2 Socket Cap Screws 1.3 Socket Head Shoulder Screws 1.4 Socket Set Screws 1.5 Keys and Bits for Driving Socket Screws 1.6 Dimensions 1.7 Finish 1.8 Identification Marking 1.9 Terminology 1.10 Responsibility for Modifications
12	1.11 Referenced Standards 2 GENERAL DATA 2.1 Sockets 2.2 Threads 2.3 Quality Assurance
13	Tables Table 1 Dimensions of Hexagon Socket Head Cap Screws
14	Table 1 Dimensions of Hexagon Socket Head Cap Screws ( Cont’d)
15	Table 1 Dimensions of Hexagon Socket Head Cap Screws ( Cont’d)
16	Table 2 Dimensions of Under Head Fillets for Socket Head Cap Screws Threaded to the Head
17	Table 3 Dimensions of Under Head Fillets for Socket Head Cap Screws With an Unthreaded Length of Body Diameter
18	Table 4 Body and Grip Lengths for Socket Head Cap Screws
19	Table 4 Body and Grip Lengths for Socket Head Cap Screws ( Cont’d)
20	Table 4 Body and Grip Lengths for Socket Head Cap Screws ( Cont’d)
21	Table 4 Body and Grip Lengths for Socket Head Cap Screws ( Cont’d)
22	Table 5 Lengths Beyond Sizes in Table 4
23	Table 6 Shank Straightness for Socket Head Cap Screws
24	Table 7 Dimensions of Drilled Hexagon Socket Head Cap Screws
25	Table 7 Dimensions of Drilled Hexagon Socket Head Cap Screws ( Cont’d)
26	Table 8 Dimensions of Hexagon Socket Flat Countersunk Head Cap Screws
27	Table 8 Dimensions of Hexagon Socket Flat Countersunk Head Cap Screws ( Cont’d)
28	Table 8 Dimensions of Hexagon Socket Flat Countersunk Head Cap Screws ( Cont’d)
29	Table 9 Body and Grip Lengths for Socket Flat Countersunk Head Cap Screws
30	Table 9 Body and Grip Lengths for Socket Flat Countersunk Head Cap Screws ( Cont’d)
31	Table 9 Body and Grip Lengths for Socket Flat Countersunk Head Cap Screws ( Cont’d)
32	Table 10 Lengths Beyond Sizes in Table 9
33	Table 11 Dimensions of Hexagon Socket Button Head Cap Screws
34	Table 11 Dimensions of Hexagon Socket Button Head Cap Screws ( Cont’d)
35	Table 11 Dimensions of Hexagon Socket Button Head Cap Screws ( Cont’d)
36	Table 12 Dimensions of Low Head Hexagon Socket Cap Screws
37	Table 12 Dimensions of Low Head Hexagon Socket Cap Screws ( Cont’d)
38	Table 13 Dimensions of Hexagon Socket Head Shoulder Screws
39	Table 13 Dimensions of Hexagon Socket Head Shoulder Screws ( Cont’d)
40	Table 13 Dimensions of Hexagon Socket Head Shoulder Screws ( Cont’d)
41	Table 14 Dimensions of Hexagon Socket Set Screws
42	Table 14 Dimensions of Hexagon Socket Set Screws ( Cont’d)
43	Table 14 Dimensions of Hexagon Socket Set Screws ( Cont’d)
44	Table 14 Dimensions of Hexagon Socket Set Screws ( Cont’d)
45	Table 15 Hexagon Key Engagements for Short Length Set Screws
46	Table 15 Hexagon Key Engagements for Short Length Set Screws ( Cont’d) Table 16 Dimensions of Optional Cup Points
47	Figure Fig. 1 Cup Point Variations
48	Table 17 Dimensions of Hexagon Keys and Bits
49	Table 17 Dimensions of Hexagon Keys and Bits ( Cont’d)
50	Table 18 Dimensions of Hexagon Sockets
51	MANDATORY APPENDIX I GAGES AND GAGING FOR HEXAGON SOCKETS I- 1 GENERAL I- 2 GAGING OF HEXAGON SOCKETS I- 3 GAGES
52	Table I- 1 Dimensions of Gages for Hexagon Sockets
53	MANDATORY APPENDIX II PROTRUSION GAGING OF FLAT COUNTERSUNK HEADS I- 1 PRIMARY METHOD Fig. II- 1 Primary Method
54	Table II- 1 Alternate Method
55	MANDATORY APPENDIX III TYPE VI RECESS DIMENSIONS
56	Table III- 1 Recess Reference Size and NOT GO ( Fallaway)
57	Table III- 2 Dimensions for Type VI Recess
58	NONMANDATORY APPENDIX A DRILL AND COUNTERBORE SIZES FOR SOCKET HEAD CAP SCREWS
59	Table A- 1 Drill and Counterbore Sizes for Socket Head Cap Screws
60	Table A- 1 Drill and Counterbore Sizes for Socket Head Cap Screws ( Cont’d)
61	NONMANDATORY APPENDIX B FORMULAS FOR DIMENSIONS B- 1 HEXAGON SOCKET HEAD CAP SCREWS B- 2 HEXAGON SOCKET FLAT COUNTERSUNK HEAD CAP SCREWS B- 3 HEXAGON SOCKET BUTTON HEAD CAP SCREWS
62	B- 4 HEXAGON SOCKET HEAD SHOULDER SCREWS B- 5 HEXAGON SOCKET SET SCREWS B- 6 HEXAGON KEYS
63	NONMANDATORY APPENDIX C HEXAGON SOCKET HEAD CAP SCREWS ( 1936 SERIES)