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 revised, reaffirmed, stabilized, or cancelled. SAE invites your written comments and suggestions. Copyright 2013 SAE International All rights reserved. No part of this p
3、ublication 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. TO PLACE A DOCUMENT ORDER: Tel: 877-606-7323 (inside USA and Canada) Tel: +1 724-776-497
4、0 (outside USA) 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/J532_201303 SURFACE VEHICLE STANDARD J532 MAR2013 Issued 1918-02 Revised 2013-03
5、Superseding J532 JUN1993 Automotive Straight Thread Filler and Drain Plugs RATIONALE This document has been changed only to include current plating requirements. 1. SCOPE This SAE Standard includes complete general and dimensional specifications for those types of filler and drain plugs (shown in Fi
6、gures 1 to 7 and Tables 1 to 3) having straight threads which are commonly used with gaskets or seals in automotive and related industrial applications. 2. REFERENCES 2.1 Applicable Documents The following publications form a part of this specification to the extent specified herein. Unless otherwis
7、e indicated, the latest issue of SAE publications shall apply. 2.1.1 SAE Publications Available 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 J548/1 Spark Plugs SAE J548/2 Spark Plu
8、g Installation Sockets SAE J846 Coding Systems for Identification of Fluid Conductors and Connectors 2.1.2 ASTM Publication Available from ASTM International, 100 Barr Harbor Drive, P.O. Box C700, West Conshohocken, PA 19428-2959, Tel: 610-832-9585, www.astm.org ASTM B 117 Method of Salt Spray (Fog)
9、 Testing SAE J532 Revised MAR2013 Page 2 of 12 3. GENERAL SPECIFICATIONS 3.1 Dimensions and Tolerances Except for nominal sizes and thread specifications, dimensions and tolerances are given in both SI units and U.S. customary as designated. Tabulated dimensions shall apply to the finished plugs, pl
10、ated, hardened, or otherwise processed, as specified by the purchaser. The minimum across corner dimensions of external hexagons shall be 1.092 times the nominal width across flats, but shall not result in a side flat width less than 0.43 times the nominal width across flats. The minimum across corn
11、er dimensions of external squares shall be 1.25 times the nominal width across flats, but shall not result in a side flat width less than 0.75 times the nominal width across flats. The diameter of the washer face on hexagon outside head plugs shall be equal to 95% of the maximum width across flats w
12、ithin a tolerance of g1145%. At maximum material condition, the radii at corners of hexagon and square sockets in broached or upset plugs shall not exceed 0.13 mm (0.005 in). Tolerance on dimensions not otherwise limited shall be g1140.25 mm (g1140.010 in). 3.2 Straight Threads Unified standard Clas
13、s 2A external and Class 2B internal threads shall apply to inch sizes of plain finish (unplated) plugs and holes into which they assemble. For externally threaded parts with additive finish, the maximum diameters of Class 2A may be exceeded by the amount of the allowance, that is, the basic diameter
14、s (Class 2A maximum diameter plus the allowance) shall apply after plating. The pitch diameter tolerance for special diameter-pitch combinations shall be based on diameter, pitch, and a length of engagement of 9 times the pitch. For metric sizes of plugs and mating holes, threads shall conform with
15、SAE J548. For convenient reference, the data generally required to specify threads is given in Table 1 for both the plugs and mating holes. (Inasmuch as threads are normally produced and gaged with equipment made to the respective measurement system, conversion of size designations and dimensions to
16、 other measurement systems is considered unnecessary.) External threads shall be chamfered or rounded from the diameters tabulated in Table 4 to produce a length of chamfered or partial thread as specified. 3.3 Material and Manufacture Plugs may be made from low carbon steel, cast iron, malleable ir
17、on, brass, bronze, or aluminum alloy as specified by purchaser, by casting, milling from the bar, or by upsetting from a grade of material free of defects which can adversely affect their serviceability. 3.4 Corrosion Protection The external surfaces and threads of all carbon steel parts shall be pl
18、ated or coated with a suitable material that passes a 96 h salt spray test in accordance with ASTM B 117. Any appearance of red rust during the 96 h salt spray test shall be considered failure, except for the following: a. All internal fluid passages b. Edges such as hex points, serrations and crest
19、s of threads where there may be mechanical deformation of the plating or coating typical of mass-produced parts or shipping effects. SAE J532 Revised MAR2013 Page 3 of 12 c. Areas where there is mechanical deformation of the plating or coating caused by crimping, flaring bending and other post-plate
20、 metal forming operations. d. Areas where the parts are suspended or affixed in the test chamber where condensate can accumulate. Parts manufactured to this specification shall not be cadmium plated. Hexavalent chromate coatings are not preferred for commercial and industrial usage due to environmen
21、tal reasons. Internal fluid passages shall be protected from corrosion during storage and shipping. Changes in plating can affect torque and require requalification when applicable. 3.5 Workmanship Workmanship shall conform to the best commercial practice to produce high-quality parts. Plugs shall b
22、e free from all hanging burrs, loose scale, and slivers which might become dislodged in usage and all other defects which might affect their serviceability. FIGURE 1 - RECOMMENDED HOLE DATA FIGURE 2 - HEXAGON OUTSIDE HEAD PLUG (420109A) SAE J532 Revised MAR2013 Page 4 of 12 FIGURE 3 - SQUARE HEAD PL
23、UG (420109B) Codes Shown In Brackets Adjacent To Figure Numbers Represent Respective Fitting Identification In Accordance With SAE J846. FIGURE 4 - HEXAGON INSIDE HEAD PLUG (420109C) FIGURE 5 - DETAIL X ENLARGED SAE J532 Revised MAR2013 Page 5 of 12 TABLE 1 - STRAIGHT THREAD SIZES (EXTERNAL AND INTE
24、RNAL) (FIGURES 1 TO 7) Nom Size, in Series Desig- nation External Thread Pitch Diameter Max mm External Thread Pitch Diameter Max in External Thread Pitch Diameter Min mm External Thread Pitch Diameter Min in Internal Thread Pitch Diameter Max mm Internal Thread Pitch Diameter Max in Internal Thread
25、 Pitch Diameter Min mm Internal Thread Pitch Diameter Min in Internal Thread Minor Diameter Max mm Internal Thread Minor Diameter Max in Internal Thread Minor Diameter Min mm Internal Thread Minor Diameter Min in 5/1624 UNF 0.2843 0.2806 0.2902 0.2854 0.277 0.267 3/824 UNF 0.3468 0.3430 0.3528 0.347
26、9 0.340 0.330 1/220 UNF 0.4662 0.4619 0.4731 0.4675 0.457 0.446 5/818 UNF 0.5875 0.5828 0.5949 0.5889 0.578 0.565 3/416 UNF 0.7079 0.7029 0.7159 0.7094 0.696 0.682 7/818 UNS 0.8375 0.8329 0.8449 0.8389 0.828 0.815 118 UNS 0.9625 0.9578 0.9701 0.9639 0.953 0.940 1-1/418 UNEF 1.2124 1.2075 1.2202 1.21
27、39 1.203 1.190 1-1/218 UNEF 1.4624 1.4574 1.4704 1.4639 1.452 1.440 1-3/416 UN 1.7078 1.7025 1.7163 1.7094 1.696 1.682 216 UN 1.9578 1.9524 1.9664 1.9594 1.946 1.932 Metric Thread Sizes 10 x 1 9.335 9.238 9.446 9.350 8.954 8.844 14 x 1.25 13.155 13.048 13.297 13.188 12.962 12.499 18 x 1.5 16.980 16.
28、853 17.153 17.026 16.426 16.266 SQUARE AND HEXAGON SOCKET HEAD FIGURE 6 - SQUARE SOCKET HEAD PLUGS SAE J532 Revised MAR2013 Page 6 of 12 FIGURE 7 - HEXAGON SOCKET HEAD PLUGS SAE J532 Revised MAR2013 Page 7 of 12 SAE J532 Revised MAR2013 Page 8 of 12 SAE J532 Revised MAR2013 Page 9 of 12 SAE J532 Rev
29、ised MAR2013 Page 10 of 12 SAE J532 Revised MAR2013 Page 11 of 12 SAE J532 Revised MAR2013 Page 12 of 12 4. NOTES 4.1 Marginal Indicia A change bar (l) located in the left margin is for the convenience of the user in locating areas where technical revisions, not editorial changes, have been made to
30、the previous issue of this document. An (R) symbol to the left of the document title indicates a complete revision of the document, including technical revisions. Change bars and (R) are not used in original publications, nor in documents that contain editorial changes only. PREPARED BY THE SAE HYDRAULIC TUBE FITTINGS COMMITTEE
