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 2006 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 J2295M ISSUED JUN2006 SURFACE VEHICLE STANDARD Issued 2006-06 FastenersPart StandardCap Screws, Hex Bolts, and Hex Nuts (Metric) RATIONALE Part Standard SAE J2295 that originally covered both inch and metric fastener
5、s has been split into two documents with J2295 covering inch dimensioned fasteners and this standard, J2295M, covering metric dimensioned fasteners. An optional J2295 prefix has been added to the Part Identifying Numbers (PINs) in order to more clearly identify this standard as the source of the PIN
6、. This revision adds Copper Allot 260, Nickel Alloys 625 and 686 and titanium alloy 32 (UNS R55111) for the ASTM F 467and F 468 fasteners while making titanium alloy 19 inactive for new design. For inspection of small lots, the references specifying lot size have been changed. The reference specific
7、ations for dry film lubricants and for electroplating have changed. Hot-dipped and mechanically deposited zinc coatings have been deleted and Zinc/Aluminum) coatings have been added. Guidance has been added to the Note Section regarding the availability and interchangeability of several copper alloy
8、s. Additional configurations of slotted and jam nuts have been added. A note on galling is added to provide guidance when selecting aluminum, titanium, nickel alloys and austenitic stainless steel fasteners. Stainless steel alloys have been updated to agree with those listed in referenced product st
9、andards. The tables identifying material suffixes for the part identification numbers have been made user friendly by: a. Identifying the applicable ASME dimensional standard in the table b. Providing strength information to help the designer select an appropriate fastener. (Strength values are for
10、info only and do not supersede requirements of the referenced product standard). c. Identifying the coatings recommended for each fastener 1. SCOPE This SAE Part Standard covers selected metric screws, hex bolts, and nuts manufactured in accordance with American Society for Testing and Materials (AS
11、TM) and SAE fastener standards. This document covers fastener materials often used in ship systems and 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
12、defined in this document. 1.1 Purpose The purpose of this document is to assist the designer and other 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
13、all military applications and provides a useful means of communicating fastener requirements to suppliers and manufacturers in a very succinct manner. SAE J2295M Issued JUN2006 - 2 - 1.2 Fastener Part Numbers This document provides part or identifying numbers that can be used to identify metric sock
14、et head cap screws, hex head cap screws, bolts and hex nuts for the parts covered by this document. The parts covered by this document are manufactured in accordance with fastener standards issued by the SAE and ASTM. The part identification number (PIN) identifies material, material strength, coati
15、ngs and special features, nominal diameter, thread configuration, fastener length, marking requirements, along with the applicable ASTM or SAE fastener specification. 1.3 Relationship of J2295M to ISO Standards There is no equivalent ISO standard. There are ISO standards that cover some similar prod
16、ucts. The ASME dimensional standards referenced are similar to ISO standards and these standards usually contain a comparison to ISO dimensional standards. The metric fastener parts in J2295M are based on ASTM and ASME fastener standards. However, these parts are often not stocked and metric fastene
17、rs available from stock are often to DIN, ISO or other standards. 2. REFERENCES 2.1 Applicable Publications The following documents form a part of this specification to the extent specified herein. The latest issue of the documents shall be used except in those cases where an invitation for bid or p
18、rocurement 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 and Canada) or 724-776-4970 (outside USA), www.sae.org. SAE AMS 2412 Silver Plating SAE A
19、MS 2485 Black Oxide Coating SAE AMS 2487 Anodic Treatment of Titanium and Titanium Alloys SAE AMS 2488 Anodic Treatment, Titanium and Titanium Alloys SAE AS1701 Lubricant, Solid Dry Film SAE J123 Surface Discontinuities on Bolts, Screws, and Studs in Fatigue Applications SAE J2270 Ship Systems and E
20、quipmentFastenersTest, Inspection, and Installation Requirements SAE J2271M Ship Systems and EquipmentPart Standard for StudsContinuous and Double End (Metric Series) SAE J2280 Ship Systems and EquipmentFastenersSelection and Identification Requirements SAE J2295 FastenersPart StandardCap Screws, He
21、x Bolts, and Hex Nuts (Inch Dimensioned) 2.1.2 National Aerospace Standards Available from Aerospace Industries Association, 1000 Wilson Boulevard, Suite 1700, Arlington, VA 22209-3928, Tel: 703-358-1000, www.aia-aerospace.org. NAS 1283 Fasteners, Male, Threaded, Self-locking SAE J2295M Issued JUN20
22、06 - 3 - 2.1.3 ASME 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 B1.13M Metric Screw Threads - M Profile ASME B18.2.3.1M Metric Hex Cap Screws ASME B18.2.3.3M Metric Heavy Hex Scre
23、ws ASME B18.2.3.5M Metric Hex Bolts ASME B18.2.3.6M Metric Heavy Hex Bolts ASME B18.2.3.7M Metric Heavy Hex Structural Bolts ASME B18.2.4.1M Metric Hex Nuts, Style 1 ASME B18.2.4.2M Metric Hex Nuts, Style 2 ASME B18.2.4.6M Metric Heavy Hex Nuts ASME B18.3.1M Socket Head Cap Screws (Metric Series) AS
24、ME B18.3.5M Hexagon Socket Flat Countersunk Head Cap Screws (Metric 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/A193M Alloy Steel and Stainless Steel Bolting Materials for High-Temperature S
25、ervice ASTM A 194/A194M Carbon and Alloy Steel Nuts for Bolts for High-Pressure and High-Temperature Service ASTM A 325M High-Strength Bolts for Structural Steel Joints Metric ASTM A 342 Standard Test Methods for Permeability of Feebly Magnetic Materials ASTM A 380 Cleaning, Descaling, and Passivati
26、on of Stainless Steel Parts, Equipment and Systems ASTM A 453/A 453M Bolting Materials, High-Temperature, 50 to 120 ksi 345 to 827 MPa Yield Strength, with Expansion Coefficients Comparable to Austenitic Steels ASTM A 490M High Strength Steel Bolts, Classes 10.9 and 10.9.3 for Structural Steel Joint
27、s (Metric) ASTM A 563M Carbon and Alloy Steel Nuts Metric ASTM A 574M Alloy Steel Socket Head Cap Screws Metric ASTM B 580 Anodic Oxide Coatings on Aluminum ASTM F 467M Nonferrous Nuts for General Use Metric ASTM F 468M Nonferrous Bolts, Hex Cap Screws and Studs for General Use Metric ASTM F 568M Ca
28、rbon and Alloy Steel Externally Threaded Metric Fasteners SAE J2295M Issued JUN2006 - 4 - ASTM F 738M Stainless Steel Metric Bolts, Screws, and Studs ASTM F 788/F 788M Surface Discontinuities of Bolts, Screws, and Studs, Inch and Metric Series ASTM F 812/F 812M Surface Discontinuities of Nuts, Inch
29、and Metric Series ASTM F 835M Alloy Steel Socket Button and Flat Countersunk Head Cap Screws Metric ASTM F 836M Stainless Steel Metric Nuts ASTM F 837M Stainless Steel Socket Head Cap Screws Metric ASTM F 879M Stainless Steel Socket Button and Flat Countersunk Head Cap Screws Metric ASTM F 1136M Zin
30、c/Aluminum Corrosion Protective Coatings for Fasteners Metric ASTM F 1137 Phosphate/Oil and Phosphate/Organic Corrosion Protective Coatings for Fasteners ASTM F 1470 Fastener Sampling for Specified Mechanical Properties and Performance Inspection ASTM F1941M Electrodeposited Coatings on Threaded Fas
31、teners Metric ASTM F 2328M Determining Decarburization and Carburization in Hardened and Tempered Threaded Steel Bolts, Screws and Studs (Metric) 2.1.5 U.S. Government Publications Available from Standardization Documents Order Desk, Building 4D, 700 Robbins Avenue, Philadelphia, PA 19111-5094, Tel:
32、 215-697-2179, http:/stinet.dtic.mil/str/dodiss4_fields.html. 2.1.5.1 Military Specifications MIL-DTL-16232 Phosphate Coating, Heavy, Manganese or Zinc Base 2.1.5.2 Federal Specifications QQ-N-286 Nickel-Copper-Aluminum Alloy, Wrought 3. FASTENER PART OR IDENTIFYING NUMBERS 3.1 SAE Fastener Part Sta
33、ndards This 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 AS
34、TM or SAE 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, coatin
35、g, and other 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 Fasteners PINs are provided herein for selected metric bolts, cap screws, and hex nuts for the purpose of common logis
36、tics parts identification 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
37、 of fasteners and therefore part numbers to cover similar fasteners in this standard have usually not been developed. SAE J2295M Issued JUN2006 - 5 - 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 AST
38、M and SAE product standards. Table 1 is a listing of the standards with the selected materials identified for metric screws and bolts. The part number consists of a number of fields in the following order as identified in Figure 1: Field 0J2295M (Optional prefix, recommended) Field 1Product standard
39、 (ASTM or SAE) Field 2Thread form Field 3Thread tolerance class Field 4Type of fastener Field 5Nominal Diameter Field 6Locking Mechanisms Field 7Coatings Field 8Nominal length Field 9PIN suffix for the selected material as obtained from Table 1. 3.2.2 PINs for Nuts Figure 2 provides part or identify
40、ing numbers for hex nuts in accordance with selected ASTM and SAE product standards. Table 2 lists the metric nut standards with the selected materials identified. The part number consists of a number of fields in the following order as identified in Figure 2: Field 0J2295M (Optional Prefix, Recomme
41、nded) Field 1Product standard (ASTM or SAE) Field 2Thread form Field 3Thread tolerance class Field 4Type of nut: Hex, Heavy Hex or Jam Field 5Nominal Diameter Field 6Locking Mechanisms Field 7Coatings Field 8PIN suffix for the selected material as obtained from Table 2 SAE J2295M Issued JUN2006 - 6
42、- J2295M F568 M 6 H 12 L Z 50 JField 9 Materials Field 8 Nominal LengthField 7 Coatings Field 6 Locking Mechanisms Field 5 Nominal Diameter Field 4 Type of Fastener Field 3 Thread Tolerance Class Field 2 Thread Form Field 1 Product Standard (ASTM or SAE) Field 0 (Optional) SAE Standard Field 0J2295M
43、 Identifies this SAE Standard (This prefix is optional and may be omitted when drawing or computer limitations cannot accommodate the extra characters. See 4.2 for guidance when this prefix is omitted.) Field 1Product Standard (ASTM or SAE) The applicable standards and the Field 1 identification are
44、 contained in the first column of Table 2. For standards with a “M” suffix for “Metric”, the suffix is not used since Field 2 describes the type of threads. Field 2Thread Form Field 3Thread Class Field M = Metric (ASME B1.13M) 4 = 4g6g (metric) (ASME B1.13M) 6 = 6H (metric) (ASME B1.13M) Field 4Type
45、 of Fastener B = Heavy Hex Structural Bolt F = Hexagon Socket Flat Countersunk Head Cap Screw H = Heavy Hex Cap Screw (metric = 90 countersunk) R = Regular Hex Cap Screw S = Socket Head Cap Screw Field 5Nominal Metric Diameter (See 3.3.2) Field 6Locking Mechanisms XX(X) = mm (Use two digits below 10
46、0 mm) = No Locking Mechanisms L = Locking Element (See 3.7 for location and testing of NOTE: See 4.5 for earlier PINs when Fields 6 locking elements) and 7 were combined. Field 7Coatings N = None (However, passivation shall be provided on CRES fasteners and the coating requirements of 3.4.1.3 shall
47、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). K = Manganese Phosphate Coating (see 3.4.5) These designators no longer used (See 4.10) P = Zinc Phosphate Coating (see
48、 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 Inorganic Coating No Chromium Permitted (see 3.4.8 and 3.4.8.1) Y = Zinc/Aluminum Inorganic Coating Chromi
49、um Permitted (see 3.4.8) Z = Zinc Electroplate (Electroplated zinc See 3.4.4) Field 8Nominal Length (See 3.3.1 for length increments) Metric = mm (For lengths below 100 mm, use two digits) 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“. FIGU
