1、 METRIC AEROSPACE STANDARD SCREW, MACHINE, 100 CSK, FLAT HEAD, OFFSET CRUCIFORM RECESS, FULL SHANK, UNS S66286, MJ THREAD, METRIC MA4189Copyright 2015 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
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3、e.org I ISSUED 1992-01 REAFFIRMED 2015-05THIRD ANGLE PROJECTION CUSTODIAN: E-25 FEDERAL SUPPLY CLASS 5306MA4189 SHEET 1 OF 14 SAE Technical Standards Board Rules provide that: “This report ispublished by SAE toadvance thestate of technicalandengineering sciences. Theuse ofthisreport is entirelyvolun
4、tary, andits applicability and suitability forany particularuse,including any patent infringement arising therefrom, isthe soleresponsibilityofthe user.”SAE reviews eachtechnicalreport at least every five years at which time itmay berevised,reaffirmed, stabilized, orcancelled. SAE invites yourwritte
5、ncomments andsuggestions. SAE values your input. To provide feedbackon this Technical Report, please visit http:/www.sae.org/technical/standards/MA4189 RATIONALE MA4189 HAS BEEN REAFFIRMED TO COMPLY WITH THE SAE FIVE-YEAR REVIEW POLICY. FIGURE 1 METRIC AEROSPACE STANDARD MA4189 SHEET 2 OF 14 SCREW,
6、MACHINE, 100 CSK, FLAT HEAD, OFFSET CRUCIFORM RECESS, FULL SHANK, UNS S66286, MJ THREAD, METRIC TABLE 1TABLE 2METRIC AEROSPACE STANDARD MA4189 SHEET 3 OF 14 SCREW, MACHINE, 100 CSK, FLAT HEAD, OFFSET CRUCIFORM RECESS, FULL SHANK, UNS S66286, MJ THREAD, METRIC TABLE 2 (CONTINUED)METRIC AEROSPACE STAN
7、DARD MA4189 SHEET 4 OF 14 SCREW, MACHINE, 100 CSK, FLAT HEAD, OFFSET CRUCIFORM RECESS, FULL SHANK, UNS S66286, MJ THREAD, METRIC TABLE 2 (CONTINUED)METRIC AEROSPACE STANDARD MA4189 SHEET 5 OF 14 SCREW, MACHINE, 100 CSK, FLAT HEAD, OFFSET CRUCIFORM RECESS, FULL SHANK, UNS S66286, MJ THREAD, METRIC TA
8、BLE 2 - (CONTINUED)METRIC AEROSPACE STANDARD MA4189 SHEET 6 OF 14 SCREW, MACHINE, 100 CSK, FLAT HEAD, OFFSET CRUCIFORM RECESS, FULL SHANK, UNS S66286, MJ THREAD, METRIC TABLE 2 (CONTINUED)METRIC AEROSPACE STANDARD MA4189 SHEET 7 OF 14 SCREW, MACHINE, 100 CSK, FLAT HEAD, OFFSET CRUCIFORM RECESS, FULL
9、 SHANK, UNS S66286, MJ THREAD, METRIC TABLE 2 (CONTINUED)METRIC AEROSPACE STANDARD MA4189 SHEET 8 OF 14 SCREW, MACHINE, 100 CSK, FLAT HEAD, OFFSET CRUCIFORM RECESS, FULL SHANK, UNS S66286, MJ THREAD, METRIC TABLE 2 (CONTINUED)METRIC AEROSPACE STANDARD MA4189 SHEET 9 OF 14 SCREW, MACHINE, 100 CSK, FL
10、AT HEAD, OFFSET CRUCIFORM RECESS, FULL SHANK, UNS S66286, MJ THREAD, METRIC TABLE 2 (CONTINUED)METRIC AEROSPACE STANDARD MA4189 SHEET 10 OF 14 SCREW, MACHINE, 100 CSK, FLAT HEAD, OFFSET CRUCIFORM RECESS, FULL SHANK, UNS S66286, MJ THREAD, METRIC TABLE 2 (CONTINUED)METRIC AEROSPACE STANDARD MA4189 SH
11、EET 11 OF 14 SCREW, MACHINE, 100 CSK, FLAT HEAD, OFFSET CRUCIFORM RECESS, FULL SHANK, UNS S66286, MJ THREAD, METRIC TABLE 2 (CONTINUED)METRIC AEROSPACE STANDARD MA4189 SHEET 12 OF 14 SCREW, MACHINE, 100 CSK, FLAT HEAD, OFFSET CRUCIFORM RECESS, FULL SHANK, UNS S66286, MJ THREAD, METRIC TABLE 2 (CONTI
12、NUED)METRIC AEROSPACE STANDARD MA4189 SHEET 13 OF 14 SCREW, MACHINE, 100 CSK, FLAT HEAD, OFFSET CRUCIFORM RECESS, FULL SHANK, UNS S66286, MJ THREAD, METRIC TABLE 2 (CONTINUED)METRIC AEROSPACE STANDARD MA4189 SHEET 14 OF 14 SCREW, MACHINE, 100 CSK, FLAT HEAD, OFFSET CRUCIFORM RECESS, FULL SHANK, UNS
13、S66286, MJ THREAD, METRIC NOTES:1. FOR PART NUMBERS WHERE DIMENSION N IS EQUAL TO OR LESS THAN ONE AND ONE HALF TIMES THE NOMINAL DIAMETER TO THE THREAD, DATUM /A/ SHALL REPLACE DATUM /B/.2. MATERIAL: HEAT AND CORROSION RESISTANT STEEL PER AMS 5731 (UNS S66286).3. HEAT TREATMENT: SOLUTION AND PRECIP
14、ITATION HEAT TREATED. SEE PROCUREMENT SPECIFICATION.4. PROCUREMENT SPECIFICATION: MA3374.5. HARDNESS: 26 TO 35 HRC.6. FLUORESCENT PENETRANT INSPECTION: AMS 2645. ACCEPTANCE CRITERIA PER MA3374.7. SURFACE TEXTURE: SYMBOLS PER ANSI Y14.36-1978. REQUIREMENTS PER ANSI/ASME B46.1-1985 UNLESS OTHERWISE SP
15、ECIFIED SURFACES TO BE 3.2 m Ra.8. DIMENSIONS A AND H ARE INCLUDED FOR ENGINEERING REFERENCE PURPOSES ONLY AND ARE NOT TO BE USED FOR INSPECTION. VALUES A AND H ARE CALCULATED LIMITS RESULTING FROM TOLERANCE ON B, D, E, F, G AND HEAD ANGLE.9. PART NUMBER SHALL INCLUDE THE STANDARD NUMBER AND THE DAS
16、H NUMBER TO INDICATE DIAMETER AND LENGTH. EXAMPLE OF PART NUMBER:MA4189-050022 = BOLT, MJ5X0.8 THREAD 22 LONG(EX.1)10. BREAK EDGES 0.1 TO 0.4, UNLESS OTHERWISE SPECIFIED.11. DIMENSION AND TOLERANCING: ANSI Y14.5M-1982, TOLERANCE GRADE PER ANSI B4.2-1978.12. ALL DIMENSIONS IN MILLIMETERS UNLESS OTHERWISE SPECIFIED.13. DO NOT USE UNASSIGNED PART NUMBERS.14. NA0025 IS AN AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA PUBLICATION.15. AS, MA, AND AMS ARE SAE PUBLICATIONS.16. ANSI Y14.36-1978, ANSI/ASME B46.1-1985 AND ANSI Y14.5M-1982 ARE AMERICAN NATIONAL STANDARDS INSTITUTE PUBLICATIONS.
