1、 SURFACE VEHICLE STANDARD Fastener Part StandardCap Screws, Hex Bolts, and Hex Nuts (Inch Dimensioned) 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
2、applicability and suitability for any particular use, including any patent infringement arising therefrom, 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
3、 and suggestions. Copyright 2006 SAE International All rights reserved. No part of this publication may 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.
4、 TO PLACE A DOCUMENT ORDER: Tel: 877-606-7323 (inside USA and Canada) Tel: 724-776-4970 (outside USA) Fax: 724-776-0790 Email: CustomerServicesae.org SAE WEB ADDRESS: http:/www.sae.org Issued 1996-08 Revised 2006-05 Superseding J2295 APR2004 J2295 REV. MAY20061. Scope This SAE Part Standard covers s
5、elected inch screws, hex bolts, and nuts manufactured in accordance with SAE and American Society for Testing and Materials (ASTM) fastener standards. Appendix A covers bolt blanks to manufacture fitted bolts of specific materials. This document covers fastener materials often used in ship systems a
6、nd equipment but its use may be applied wherever fasteners of the covered materials are used. This document permits the fasteners to be identified and ordered by a part or identifying number (PIN) as defined in this document. 1.1 Purpose The purpose of this document is to assist the designer and oth
7、er personnel by providing requirements and part identifying numbers for the most commonly used fasteners for ship systems and equipment. A part or identification number (PIN) is normally required for all military applications and provides a useful means of communicating fastener requirements to supp
8、liers and manufacturers in a very succinct manner. 1.2 Fastener Part Numbers This document provides part or identifying numbers that can be used to identify socket head cap screws, hex head cap screws, and bolts and hex nuts for the parts covered by this document. The parts covered by this document
9、are to be manufactured in accordance with fastener standards issued by the SAE and ASTM. The part identification number (PIN) identifies material, material strength, coatings and special features, nominal diameter, thread configuration, fastener length, marking requirements, along with the applicabl
10、e ASTM or SAE fastener specification. Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SAE J2295 Revised MAY2006 - 2 - 1.3 Rationale Three grades of Ni-Cr-Mo-W alloy (UNS N06686) are now covered. Ni-C
11、r-Mo-Cb (UNS N06625) is added for high temperature applications. Copper Alloy Brass 260 (UNS C26000) is added to provide a cold heading grade. Bolt blanks are added to reduce machining waste for shipbuilders and repair activities. Continuous threaded cap screws are added for energy absorption applic
12、ations and also as an option where fit ups vary. SAE J429 and J995 Grade 2 steels are added to primarily support existing applications and are not recommended for new design. A note on galling is added to provide guidance when selecting aluminum, titanium, nickel alloys and austenitic CRES. CRES all
13、oys updated to list those which are listed in referenced product standards. Designators have been added for pigmented overcoats for Zinc/Aluminum coatings. 2. References 2.1 Applicable Publications The following documents form a part of this specification to the extent specified herein. The latest i
14、ssue 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 from SAE, 400 Commonwealth Drive, Warrendale, PA 15096-0001, Tel: 877-606-7323 (inside USA
15、 and Canada) or 724-776-4970 (outside USA), www.sae.org. SAE AMS 2412Silver Plating SAE AMS 2485Black Oxide Coating SAE AMS 2487Anodic Treatment of Titanium and Titanium Alloys SAE AMS 2488Anodic Treatment, Titanium and Titanium Alloys SAE AS1701Lubricant, Solid Dry Film SAE J121Decarburization in H
16、ardened and Tempered Unified Threaded Fasteners SAE J429Mechanical and Material Requirements for Externally Threaded Fasteners SAE J995Mechanical and Material Requirements for Steel Nuts SAE J2270Ship Systems and EquipmentFastenersTest, Inspection, and Installation Requirements SAE J2271Ship Systems
17、 and EquipmentPart Standard for StudsContinuous and Double End (Inch Series) SAE J2280Ship Systems and EquipmentFastenersSelection and Identification Requirements SAE J2295M FastenersPart StandardCap Screws, Hex Bolts, and Hex Nuts (Metric) SAE J2484Fastener Part StandardMachine Screws SAE J2485Fast
18、ener Part StandardMachine Screw Nuts (Inch and Metric) 2.1.2 AEROSPACE INDUSTRIES ASSOCIATION PUBLICATIONS Available from the Aerospace Industries Association, 1000 Wilson Boulevard, Suite 1700, Arlington, VA 22209-3901; Tel: 703-358-1000, www.aia-aerospace.org. NAS 1283Fasteners, Male, Threaded, Se
19、lf-locking NAS 1351Screw, Cap, Socket Head, UNRF-3A Threads NAS 1352Screw, Cap, Socket Head, UNRC-3A Threads Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SAE J2295 Revised MAY2006 - 3 - 2.1.3 ASME
20、 PUBLICATIONS Available from the American Society of Mechanical Engineers, 22 Law Drive, PO Box 2900, Fairfield, NJ 07007-2900, Tel: 973-882-1170, www.asme.org. ASME B1.1Unified Inch Screw Thread ASME B18.2.1Square and Hex Bolts and Screws (Inch Series) ASME B18.2.2Square and Hex Nuts (Inch Series)
21、ASME B18.2.6Fasteners for Use in Structural Applications ASME B18.3Socket Cap, Shoulder and Set Screws, Hex and Spline Keys (Inch Series) 2.1.4 ASTM PUBLICATIONS Available from ASTM, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959, Tel: (610) 832-9585, www.astm.org. ASTM A 193/A193MAlloy Ste
22、el and Stainless Steel Bolting Materials for High-Temperature Service ASTM A 194/A194MCarbon and Alloy Steel Nuts for Bolts for High-Pressure and High-Temperature Service ASTM A 307Carbon Steel Bolts and Studs, 60 000 psi Tensile Strength ASTM A 325Structural Bolts, Steel Heat Treated, 120/105 ksi M
23、inimum Tensile Strength ASTM A 342Standard Test Methods for Permeability of Feebly Magnetic Materials ASTM A 354Quenched and Tempered Alloy Steel Bolts, Studs and Other Externally Threaded Fasteners ASTM A 380Cleaning, Descaling, and Passivation of Stainless Steel Parts, Equipment and Systems ASTM A
24、 449Quenched and Tempered Steel Bolts and Studs ASTM A 453/A 453MBolting Materials, High-Temperature, 50 to 120 ksi 345 to 827 MPa Yield Strength, with Expansion Coefficients Comparable to Austenitic Steels ASTM A 490Heat-Treated Steel Structural Bolts, 150 ksi Minimum Tensile ASTM A 563Carbon and A
25、lloy Steel Nuts ASTM A 574Alloy Steel Socket Head Cap Screws ASTM B 580Anodic Oxide Coatings on Aluminum ASTM F 467Nonferrous Nuts for General Use ASTM F 468Nonferrous Bolts, Hex Cap Screws and Studs for General Use ASTM F 593Stainless Steel Bolts, Hex Cap Screws and Studs ASTM F 594Stainless Steel
26、Nuts ASTM F 788/F 788MSurface Discontinuities of Bolts, Screws, and Studs, Inch and Metric Series ASTM F 812/F 812MSurface Discontinuities of Nuts, Inch and Metric Series ASTM F 835Alloy Steel Socket Button and Flat Countersunk Head Cap Screws ASTM F 837Stainless Steel Socket Head Cap Screws ASTM F
27、879Stainless Steel Socket Button and Flat Countersunk Head Cap Screws ASTM F 1136Zinc/Aluminum Corrosion Protective Coatings for Fasteners ASTM F 1137Phosphate/Oil and Phosphate/Organic Corrosion Protective Coatings for Fasteners ASTM F 1470Fastener Sampling for Specified Mechanical Properties and P
28、erformance Inspection ASTM F 1941Electrodeposited Coatings on Threaded Fasteners (Unified Inch Screw Threads (UN/UNR) ASTM G 98Standard Test Method for Galling Resistance of Materials Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permit
29、ted without license from IHS-,-,-SAE J2295 Revised MAY2006 - 4 - 2.1.5 U.S. GOVERNMENT PUBLICATIONS Available from Standardization Documents Order Desk, Building 4D, 700 Robbins Avenue, Philadelphia, PA 19111-5094, Tel: 215-697-2179, http:/assist2.daps.dia.mil.quicksearch or http:/stinet.dtic.mil. M
30、IL-DTL-16232Phosphate Coating, Heavy, Manganese or Zinc Base QQ-N-281Nickel-Copper Alloy Bar, Rod, Plate, Sheet, Strip, Wire, Forgings, and Structural and Special Shaped Sections QQ-N-286Nickel-Copper-Aluminum Alloy, Wrought 3. Fastener Part or Identifying Numbers 3.1 SAE Fastener Part Standards Thi
31、s SAE part standard is for fasteners manufactured to ASTM and SAE fastener standards in accordance with the requirements defined herein. ASTM has issued many fastener standards but generally has not established part or identifying numbers for fasteners to these standards. When using the ASTM or SAE
32、standards, it is necessary to identify the applicable dimensional configuration, coating requirements, and supplemental quality assurance requirements. This SAE part standard provides for the identification of many frequently used fasteners by identifying the applicable dimensional, coating, and oth
33、er special features with simple part identifying numbers that can be easily recognized by both manufacturers and users. 3.2 Part or Identifying Numbers (PINs) for Selected FastenersPINs are provided herein for selected bolts, cap screws, and hex nuts for the purpose of common logistics parts identif
34、ication between designers, builders, repair activities, and equipment operators. Part numbers are provided for only those fastener configurations and materials most likely to be needed. Industry or military specifications and standards with part numbers already exist for many types of fasteners and
35、therefore part numbers to cover similar fasteners in this standard have usually not been developed. 3.2.1 PINS FOR SCREWS AND BOLTS Figure 1 provides part or identifying numbers for hex and socket head screws and bolts in accordance with selected ASTM and SAE product standards. See Appendix A for de
36、tails on bolt blanks to manufacture fitted bolts. Table 1 is a listing of the standards with the selected materials identified for inch screws and bolts. The part number consists of a number of fields in the following order as identified in Figure 1: Copyright SAE International Provided by IHS under
37、 license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SAE J2295 Revised MAY2006 - 5 - Field 0J2295 Identifies this SAE Standard (This prefix is optional and may be omitted when drawing or computer limitations cannot accommodate the extra characters. See
38、4.2 for guidance when this prefix is omitted.) Field 1Product Standard (ASTM or SAE) The applicable standards and the Field 1 identification are contained in the first column of Table 1. Field 2Thread Form C = UNC/UNRC (ASME B1.1) U = 8UN/8UNR (ASME B1.1) F = UNF/UNRF (ASME B1.1) N = No Thread for B
39、olt Blank (See Appendix A) Field 3Thread Tolerance Class 2 = 2A (ASME B1.1) 3 = 3A (ASME B1.1) 8 = No Thread for Bolt Blank (See Appendix A) 9 = Oversize for zinc coating (No longer used. See 4.10) Field 4Type of Fastener B = Heavy Hex Structural Bolt H = Heavy Hex Screw R = Regular Hex Cap Screw F
40、= Hexagon Socket Flat Countersunk Head Cap Screw (inch - 82 countersunk) S = Socket Head Cap Screw C = Hexagon Socket Button Head Cap Screw A = Hex Head Bolt Blank, Oversize Shank (See Appendix A) Field 5Nominal Diameter (See 3.3.2) Inch = 16ths of an inch (For sizes 9/16 inch and smaller use two di
41、gits, For example, 09.) FIGURE 1PART NUMBER SYSTEM FOR SELECTED HEX AND SOCKET HEAD SCREWS AND BOLTS Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SAE J2295 Revised MAY2006 - 6 - Field 6Special Fea
42、tures = No special features L = Locking Element. See 3.7 for location and testing of locking elements C = Continuous Threaded Shank (See 3.3.4) E = Continuous Threaded Shank with Locking Element NoteSee 4.11 for earlier PINs when Fields 6 and 7 were combined. Field 7Coatings N = None (No Coating) (H
43、owever, passivation shall be provided on CRES fasteners and the coating requirements of 3.4.3 shall apply to all titanium fasteners.) A = Aluminum plated (See 3.4.2) B = Black Oxide (See 3.4.3) D = Dry Film Lubricant (See 3.4.7) G = Zinc Hot-Dip (H) or Mechanically Deposited (M) These designators no
44、 longer used (See 4.10) K = Manganese Phosphate Coating (See 3.4.5) P = Zinc Phosphate Coating (See 3.4.5) S = Silver Plating (See 3.4.6) V = Pigmented Zinc/Aluminum Coating-No Chromium Permitted (See 3.4.8) W = Pigmented Zinc/Aluminum Coating-Chromium Permitted (See 3.4.8) X = Zinc/Aluminum Inorgan
45、ic Coating-No Chromium Permitted (See 3.4.8 and 3.4.8.1) Y = Zinc/Aluminum or Chromium/Zinc Inorganic Coating (See 3.4.8) Z = Zinc Electroplate (Electroplated zinc coating per ASTM F 1941. See 3.4.4) Field 8Nominal Length (See 3.3.1 for length increments) Inch = 16ths of an inch (For 9/16th inch and
46、 shorter use two digits. Example: 09) Field 9PIN Suffix to Designate Material Select applicable PIN Suffix from Table 1. If applicable suffix is a number a dash prefix must be used; i.e. “-660“. (This suffix usually consists of the mechanical property marking for the material except that the portion
47、 of the mechanical property marking containing the number of the fastener product standard is not included.) FIGURE 1PART NUMBER SYSTEM FOR SELECTED HEX AND SOCKET HEAD SCREWS AND BOLTS (CONTINUED) Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or net
48、working permitted without license from IHS-,-,-SAE J2295 Revised MAY2006 - 7 - Examples of Part Numbers The part number used as an example in Figure 1, J2295J429C2H08LZ24G5, is as identified below: The optional “J2295” indicates the standard for the applicable part number. “J429” is the standard to
49、which the part conforms. “C” indicates UNC/UNCR Coarse threads and the “2” indicates a 2A thread tolerance class. “H” indicates a Heavy Hex Screw configuration per the J429 standard. The “08” indicates a nominal diameter of 8/16 ths or 1/2 inch.The “L” for the special features code indicates a self-locking element an
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