1、_ SAE Technical Standards Board Rules provide that: “This report is published by SAE to advance the state of technical and engineering sciences. The use of this report is entirely voluntary, and its applicability and suitability for any particular use, including any patent infringement arising there
2、from, is the sole responsibility of the user.” SAE reviews each technical report at least every five years at which time it may be reaffirmed, revised, or cancelled. SAE invites your written comments and suggestions. Copyright 2010 SAE International All rights reserved. No part of this publication m
3、ay be reproduced, stored in a retrieval system or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior written permission of SAE. TO PLACE A DOCUMENT ORDER: Tel: 877-606-7323 (inside USA and Canada) Tel: 724-776-4970 (outside USA)
4、 Fax: 724-776-0790 Email: CustomerServicesae.org SAE WEB ADDRESS: http:/www.sae.org SAE values your input. To provide feedback on this Technical Report, please visit http:/www.sae.org/technical/standards/j2656_201001J2656 JAN2010 SURFACE VEHICLE STANDARD Issued 2003-09 Revised 2010-01 Superseding J2
5、656 SEP2003 Fastener Part StandardHexagon Socket, Square Head, and Slotted Headless Set ScrewsInch Dimensioned RATIONALE Added Definition of terms used. Added Ni-Cr-Mo-Cb Alloy 625 (Inconel) and Copper Alloy (Brass) 260 materials. Added a caution note on black oxide coated brass. Revised Zinc/Alumin
6、um coating to designate either clear sealer or pigmented topcoat. Corrected thread fit classes for set screws to ASME B18.6.2. Redefined manufacturing and testing requirements for set screws in Section 3. Added statement about potential hazardous materials. 1. SCOPE This SAE Part Standard covers sel
7、ected inch dimensioned set screws manufactured in accordance with American Society for Mechanical Engineers dimensional standards. This SAE standard covers material most often used in ship systems and equipment but its use may be applied wherever fasteners of the covered materials are used. This sta
8、ndard permits the fasteners to be identified and ordered by a part identification number (PIN) as defined in this document. 1.1 Purpose The purpose of this document is to assist the designer and other personnel in providing requirements and PINs for the most commonly used set screws for ship systems
9、 and equipment. A PIN is normally required for all military applications and provides a useful means of communicating set screw requirements to suppliers and manufacturers in a very succinct manner. 1.2 Set Screw PINs This document provides PINs that can be used to identify set screws covered by thi
10、s standard. The fasteners covered by this standard are manufactured in general accordance with materials and processes identified in standards issued by ASTM. The PIN identifies the thread form, type of head, type of drive, nominal diameter, special features (plating, locking elements), nominal leng
11、th and fastener material. 1.3 Procurement Specification Safety - Hazardous Materials While the materials, methods, applications, and processes described or referenced in this specification may involve the use of hazardous materials, this specification does not address the hazards that may be involve
12、d in such use. It is the sole responsibility of the user to ensure familiarity with the safe and proper use of any hazardous materials and to take necessary precautionary measures to ensure the health and safety of all personnel involved. Copyright SAE International Provided by IHS under license wit
13、h SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SAE J2656 Revised JAN2010 Page 2 of 13 Certain elements and their compounds are considered hazardous or toxic materials by the United States (US) Environmental Protection Agency (EPA) and Occupational Safety and
14、Health Agency (OSHA.) Users of these materials should consider special disposal and human exposure requirements in Title 40. Protection of the Environment, from the Code of Federal Regulations, and the special handling requirements invoked in Title 29, Occupational, Safety and Health, from the Code
15、of Federal Regulations, respectively, and others as applicable. State and Local regulations may also apply. Some of the examples of certain elements and compounds are the following: mercury, boron, chromium, lead, silver, barium, cadmium and selenium. 2. REFERENCES 2.1 Applicable Publications The fo
16、llowing documents form a part of this standard to the extent specified herein. The latest issue of the documents shall be used except in those cases where an invitation for bid or procurement contract specifically identifies the issues in effect on a particular date. 2.1.1 SAE Publications Available
17、 from SAE International, 400 Commonwealth Drive, Warrendale, PA 15096-0001, Tel: 877-606-7323 (inside USA and Canada) or 724-776-4970 (outside USA), www.sae.org. SAE AMS2485 Coating, Black Oxide SAE AMS2487 Anodic Treatment of Titanium and Titanium AlloysSolution pH 12.4 Maximum SAE AMS2488 Anodic T
18、reatmentTitanium and Titanium AlloysSolution pH 13 or Higher SAE AS1701 Lubricant, Solid Film SAE J2270 Ship Systems and EquipmentThreaded FastenersInspection, Test, and Installation Requirements SAE J2280 Ship Systems and EquipmentFastenersSelection and Identification Requirements 2.1.2 National Ae
19、rospace Standards Publication Available from the Aerospace Industries Association, 1000 Wilson Boulevard, Suite 1700, Arlington, VA 22209-3901; Tel: 703-358-1000, www.aia-aerospace.org. NAS 1283 Fasteners, Male Threaded, Self-Locking 2.1.3 ASME Publications Available from the American Society of Mec
20、hanical Engineers, 22 Law Drive, PO Box 2900, Fairfield, NJ 07007-2900, Tel: 973-882-1170, www.asme.org. ASME B1.1 Unified Inch Screw Threads (UN and UNR Thread Form) ASME B18.3 Socket Cap, Shoulder, and Set Screws, Hex and Spline Keys (Inch Series) ASME B18.6.2 Slotted Head Cap Screws, Square Head
21、Set Screws, and Slotted Headless Set Screws (Inch Series) ASME B18.12 Glossary of Terms for Mechanical Fasteners ASME B18.18.2M Inspection and Quality Assurance for High-Volume Machine Assembly Fasteners Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction
22、or networking permitted without license from IHS-,-,-SAE J2656 Revised JAN2010 Page 3 of 13 2.1.4 ASTM Publications Available from American Society for Testing and Materials, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959, Tel: 610-832-9585, www.astm.org. ASTM A 342/A 342M Standard Test Met
23、hods for Permeability of Feebly Magnetic Materials ASTM A 380 Cleaning, Descaling and Passivation of Stainless Steel Parts, Equipment, and Systems ASTM A 453/A 453M High-Temperature Bolting Materials, With Expansion Coefficients Comparable to Austenitic Steels ASTM B 580 Anodic Oxide Coatings on Alu
24、minum ASTM F 468 Nonferrous Bolts, Hex Cap Screws, and Studs for General Use ASTM F 880 Stainless Steel Socket Set Screws ASTM F 912 Alloy Steel Socket Set Screws ASTM F 1136 Zinc/Aluminum Corrosion Protective Coatings for Fasteners ASTM F 1137 Phosphate/Oil and Phosphate/Organic Corrosion Protectiv
25、e Coatings for Fasteners ASTM F 1470 Fastener Sampling for Specified Mechanical Properties and Performance Inspection ASTM F 1789 Terminology for F16 Mechanical Fasteners ASTM F 1941 Electrodeposited Coatings on Threaded Fasteners (Unified Inch Screw Threads (UN/UNR) 2.1.5 U. S. Government Publicati
26、ons Available online at http:/assist.daps.dla.mil/quicksearch/ or from the Standardization Document Order Desk, 700 Robbins Avenue, Building 4D, Philadelphia, PA 19111-5094. MIL-DTL-13924 Coating, Oxide, Black, For Ferrous Materials MIL-DTL-16232 Phosphate Coating, Heavy, Manganese or Zinc Base 2.2
27、Definitions 2.2.1 For definition or terms used in this standard see ASME B18.12 and ASTM F 1789. In event of a conflict, the definitions in ASME B18.12 take precedence. 2.2.2 PIN Represents part identification number. Part Identification Numbers (PINs) are identified in Figure 1. 3. SET SCREW REQUIR
28、EMENTS 3.1 SAE Set Screw Standards This set screw part standard utilizes ASME dimensional standards for set screws and primarily ASTM standards for materials. Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from
29、IHS-,-,-SAE J2656 Revised JAN2010 Page 4 of 13 3.2 Part Identification Numbers (PINs) for Selected Set Screws PINs are provided herein for selected set screws for the purpose of common logistics parts identification between designers, fastener manufacturers, construction and repair activities, and e
30、quipment operators. PINs are provided for only those set screw configurations and materials most likely to be needed for ship systems and equipment. Figure 1 provides PINs for selected set screws. The PIN consists of a number of fields in order as identified in Figure 1. (There are no blank spaces i
31、n the PIN.) The next to last field in the PIN, field 7, designates the set screw material. Table 1 lists the material designators for field 7 of the PIN along with the chemical and mechanical properties of the material. 3.3 Dimensional Requirements for Set Screws The dimensional requirements for a p
32、articular set screw configuration are to be as shown in ASME B18.3 and ASME B18.6.2 for inch dimensioned set screws. 3.3.1 Lengths of Set Screws Length tolerances for inch dimensioned set screws shall be in accordance with ASME B18.3 and ASME B18.6.2 as applicable. 3.3.2 Diameters of Set Screws Diam
33、eters shall be restricted to those identified in ASME B18.3 and ASME B18.6.2 as applicable. 3.3.3 Thread Types and Fits Thread types and fits shall be restricted to those identified in Field 2 of Figure 1. For screws in accordance with ASME B18.3 the basic diameters per ASME B1.1 (Class 3A GO) shall
34、 apply to the finished fastener whether coated or not coated. Some screw diameters may require undersize threads prior to coating in order to meet 3A GO gage requirements. For screws in accordance with ASME B18.6.2 the threads shall be Class 2A in accordance with ASME B1.1. For screws with additive
35、finish, the size limits of Class 2A apply before coating, and the thread after coating is subject to acceptance using a basic Class 3A size GO thread gage. Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS
36、-,-,-SAE J2656 Revised JAN2010 Page 5 of 13 FIGURE 1 - PINS FOR SET SCREWS (INCH DIMENSIONED) Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SAE J2656 Revised JAN2010 Page 6 of 13 FIGURE 1 - PINS FO
37、R SET SCREWS (INCH DIMENSIONED) (CONTINUED) Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SAE J2656 Revised JAN2010 Page 7 of 13 TABLE 1 - MECHANICAL PROPERTY REQUIREMENTS FOR SET SCREW MATERIALS F
38、ield 7 Designator UNS Designation Name/Material Specification(1)Hardness Additional Requirements A1 UNS A96061 Aluminum 6061-T6 40 - 50 HRB See 3.5.3 A2 UNS A97075 Aluminum 7075-T73 80 - 90 HRB See 3.5.3 C2(2)UNS C26000, UNS C27000 or UNS C27400 Brass - Cu 260, Brass - Cu 270 or Brass - Cu 274 55 -
39、80 HRF See 3.5.3 G4 As applicable Through Hardened Alloy Steel 45 - 53 HRC For ASTM F 912 socket set screws See 3.5.1 G6 As applicable Case Hardened Low Carbon Steel 83 HR15N min. For ASME B18.6.2Configurations (square head and slotted headless) See 3.5.1 N4(2)(3)(See 4.3) UNS N04400 or UNS N04405 N
40、I-Cu Alloy 400 or Ni-Cu Alloy 405 0.750 Diam. 85 HRB - 25 HRC 0.750 Diam. 75 HRB - 25 HRC See 3.5.3 N5 UNS N05500 Ni-Cu-Al 24 - 37 HRC See 3.5.3 N6 UNS N06686 Ni-Cr-Mo-W Alloy 686 23 - 45 HRC See 3.5.3 N7 UNS N06625 Ni-Cr-Mo-Cb Alloy 625 85 HRB - 35 HRC See 3.5.3 S1(2)(See 4.3) UNS S30400 UNS S30403
41、 UNS S30500 UNS S38400 UNS S30430 UNS S30433 UNS S31600 UNS S31603 Austenitic Stainless Steel, Cold Worked Alloy 304 Alloy 304L Alloy 305 Alloy 384 Alloy 18-9LW Alloy 302 HQ Alloy 316 Alloy 316L 96 HRB - 33 HRC Alloys 303, 303se and XM1 not permitted (See 3.5.2). S2(2)(See 4.3) UNS S31600 UNS S31603
42、 Austenitic Stainless Steel, Cold Worked Alloy 316 Alloy 316L 96 HRB - 33 HRC (See 3.5.2) S6 UNS S66286 Alloy 660 (A 286) ASTM A 453/ A453M 99 HRB - 37 HRC See 3.5.3 T1 UNS R55111 Titanium Alloy 5-1-1-1 24 - 38 HRC See 3.5.3 1. Unless otherwise indicated the requirements of the following specificati
43、ons apply: (austenitic steel) - ASTM F 880, (alloy steel) - ASTM F 912, (non-ferrous) - ASTM F 468. 2. For a specific designator, the supplier may furnish any of the alloys listed, unless otherwise specified by the purchaser. 3. The hardness requirements noted are more restrictive than ASTM F 468 re
44、quirements. Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SAE J2656 Revised JAN2010 Page 8 of 13 3.4 Coating Requirements Coatings shall be limited to those identified herein. General industry prac
45、tice is to provide set screws uncoated. Coatings may be applied to alloy steels for corrosion protection. The applicable coating shall be designated in the PIN as indicated in Figure 1. All titanium set screws shall be coated and the coating is not identified in the PIN. While not normally recommend
46、ed, the black oxide coating can be specified for materials other than carbon steels where a shiny natural appearance must be avoided. 3.4.1 Required Treatments/Coatings for Aluminum, Stainless Steel and Titanium Set Screws The following treatments are required for all set screws of the indicated mat
47、erial and is not identified in the PIN since the treatment is mandatory. 3.4.1.1 Aluminum All aluminum set screws shall be anodized in accordance with ASTM B 580. 3.4.1.2 Stainless Steel All corrosion-resistant steel set screws shall be passivated in accordance with ASTM A 380. Additional coatings a
48、re not necessary for protection of corrosion resistant steel set screws but solid dry film lubricants (see 3.4.3) may be added for lubricity. 3.4.1.3 Titanium Set screws of titanium alloy shall be anodized in accordance with SAE AMS2487 or AMS2488 Type 2 (except testing requirements may be negotiated between manufacturer and coating supplier). 3.4.2 Aluminum Coatings Aluminum coatings shall have a conversion or other top coat and shall meet the requirements of ASTM F 1137 for adhesion, coating flexibility, thread fit, dry to
