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1、J I S B*l1117 95 = 4933608 0531743 T27 JIS JAPANESE INDUSTRIAL STANDARD Slotted set screws Translated and Published by Japanese Standards Association UDC 621.882.2 Printed in Japan I l s Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001,
2、 User=Wing, Bernie Not for Resale, 03/15/2007 09:08:51 MDTNo reproduction or networking permitted without license from IHS -,-,- J I S BUlll7 75 = 4733608 0531744 963 W In the event of any doubt arising, the original Standard in Japanese is to be final authority Errata for JIS (English edition) are
3、printed in Standardization Journal, published monthly by the Japanese Standards Association. Errata will be provided upon request, please contact: Business Department, Japanese Standards Association 4-1-24, Akasaka, Minato-ku, Tokyo, JAPAN 107 TEL. 03-3583-8002 FAX. 03-3583-0462 Errata are also prov
4、ided to subscribers of JIS (English edition) in Monthly lnformation. Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/15/2007 09:08:51 MDTNo reproduction or networking permitted without license from
5、 IHS -,-,- J I S BX1117 95 = 4933608 0.531745 BTT JAPANESE INDUSTRIAL STANDARD Slotted set screws UDC 621.882.2 JIS B 1117-1995 1. Scope This Japanese Industrial Standard specifies the steel made slotted set screws (hereafter, referred to as “steel set screws“), and stainless steel made set screws (
6、hereafter, referred to as “stainless steel set screws“) for general use. Remarks 1. When the steel set screws and stainless steel set screws are generically called in this Standard, these are simply called “set screws“. 2. The set screws of flat point, truncated cone point, long dog point and cup po
7、int specified in this Standard are based on IS0 4766: 1983 and IS0 7434 to 7436: 1983. However, in this Standard, those parts enclosed with ( I I ) and the set screws of rounded end are excluded. 3. The standards cited in this Standard are given in the following: JIS B O101 JIS B O122 JIS B 0205 JIS
8、 B O209 Screw threads and fasteners - Vocabulary Symbols of metal working processes Metric coarse screw threads Limits of sizes and tolerances for metric coarse screw threads Ends of parts with external metric screw thread Tolerance system for threaded fasteners Threaded components - Electroplated c
9、oatings Mechanical properties of steel set screws Specification for corrosion-resistant stainless steel fasteners Method of verification for size and geometry of threaded fasteners Fasteners - Acceptance inspection Carbon steel wires for cold heading and cold forging Carbon steels for machine struct
10、ural use JIS B 1003 JIS B 1021 JIS B 1044 JIS B 1053 JIS B 1054 JIS B 1071 JIS B 1091 JIS G 3539 JIS G 4051 4. The International Standards corresponding to this Standard are given in the following: IS0 4766 : 1983 Slotted set screws with flat point IS0 7434 : 1983 Slotted set screws with cone point
11、Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/15/2007 09:08:51 MDTNo reproduction or networking permitted without license from IHS -,-,- 2 B 1117-1995 JIS B*FLLL7 95 W 4933608 053L74b 736 W IS0 7
12、435 : 1983 Slotted set screws with long dog point IS0 7436 : 1983 Slotted set screws with cup point 2. Definitions JIS B O101 apply. For the purpose of this Standard, the definitions given in 3. Types truncated cone point, long dog point, cup point and rounded end according to the shapes of screw en
13、d. The set screws shall be classified into 5 types of flat point, 4. Product grades The product grades for the set screws shall be the product grade A of general-use threaded fasteners specified in JIS B 1021. 5. Mechanical Dronerties 5.1 steel set screws of which designation of screw thread is M1.6
14、 or larger shall be in accordance with the strength divisions 14H and 22H of JIS B 1053. Mechanical properties of steel set screws The mechanical properties of Furthermore, the mechanical properties for the steel set screws of which designation of screw thread being less than M1.6 and steel set scre
15、ws which haue been processed with case hardening shall be as agreed between the parties concerned with acceptance. Hawever, unless otherwise specified, the surface hardness of steel set screws which have been processed with case hardening shall be 460 HV to 570 EEV I45 HRC t 55 HRC). 5.2 Mechanical
16、properties of stainless steel set screws The mechanical properties of stainless steel set screws of which designation of screw threads is M1.6 or larger shall be in accordance with the property division A1-50 of JIS B 1054. However, the hardness of core portion shall be I40 HV or harder, and if that
17、 of 220 HV or harder E s required, it shall be so designated by the purchaser. Furthermore, mechanical properties for the stainless steel set screws of designation of screw thread less than M 1 . 6 shall be as agreed between the parties concerned with acceptance, 6. Shapes and dimensions shall be in
18、 accordance with Table 1. The shapes and dimensions of the set screws Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/15/2007 09:08:51 MDTNo reproduction or networking permitted without license fro
19、m IHS -,-,- JIS B*LLL7 95 W Li933608 0533747 672 = Rounded end 3 B 1117-1995 Refer to Attached Table 5. Table 1. Shapes and dimensions of set screws Item of geometrical tolerances Type I Shapes and dimensions Figure No. in Attached Table 1 of JIS B 1021 Flat point I Refer to Attached Table 1. Symmet
20、ry of slot in respect to threaded portion Run out on conical face of truncated cone point in respect to threaded portion Truncated cone point I Refer to Attached Table 2. Fig. 1.10 Fig. 1.15 Long dog point I Refer to Attached Table 3. Coaxiality on long dog point in respect to threaded portion Cup p
21、oint I Refer to Attached Table 4 . Fig. 1.14 Rectangularity on end face of long dog point in respect to threaded portion Run out on conical face of cup point in respect to threaded portion 7. Screw threads metric coarse screw threads in the text of JIS B 0205, and the grade thereof shall be 6g of th
22、e text of JIS B 0209. The screw threads of set screws shall conform to the Fig. 1.29 Fig. 1.16 The maximum permissible dimensions of the screw threads processed with electroplating shall be the maximum permissible dimensions of 4h. 8. Geometrical tolerances The geometrical tolerances of set screws s
23、hall conform to the geometrical tolerances specified in product grade A in JIS B 1021. However, the items of geometrical tolerances applicable to the set screws shall be in accordance with Table 2. Type of set screw All types Truncated cone point Long dog point Cup point 9. Surface conditions free f
24、rom the quenching cracks and injurious defects of flaws, burrs, Bashes and chippings of threads, The surfaces of set screws shall be smooth, and be 10. Materials and heat treatments screws shall be in accordance with Table 3. The materials and heat treatments of set Copyright Japanese Standards Asso
25、ciation Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/15/2007 09:08:51 MDTNo reproduction or networking permitted without license from IHS -,-,- JIS B*lIlI/7 95 4933b08 0533748 509 Heat treatment 4 B 1117-1995 Materials Table 3. Materia
26、ls and heat treatments of set screws - Division of sel screws by materials These shall be in accordance with 3. of JIS B 1053. Steel set screws Stainless steel set screws Strength and property divisions 14H 22H Al-50 Quenching and tempering (1) Case hardening It shall be as agreed between the partie
27、s concerned with accap tance, However, unless partieufarfy specified on material, it should preferably be in aceordance with $WCH 12K .to 20K of di8 G 3539 or S12C to S2C of JfS G 4051. It shall be in accordance with 5. of JIS B 1054. Note Pl When the heat %Teated steel conforming to the mechanical
28、properties of strongkh division 22H i s 3 used for the products, the quenching and .tempering of produck may be omitted. 11. Surface treatment Those steel set screws which have been heat treated may be processed with black oxide film, however, when plating or other surface treatments are required, i
29、t shall be so designated by the purchaser. When electroplating is performed, it shall be in accordance with JIS B 1044. 12. Inspections 12.1 Inspection on mechanical properties 12.1.1 Inspection on mechanical properties for steel set screws on mechanical properties for steel set screws (excluding th
30、ose less than M1.6) shall be carried out in accordance with Table 4 according to their strength division, and the results shall satisfy the mechanical properties of 5.1. The inspection The inspection on mechanical properties for atesf set screws of less than M1.6 and case hardened steel set screws s
31、hall be as agreed between the parties concerned with acceptance, fn this ease, hardness of the set screws should pre- ferably be inuestiig (Basic IMimiM; dimension) 2.5 I 2.3 I 2.7 5 I 4.7 I 5.3 6 I 5.7 1 6.3 8 I 7.7 1 8.3 10 1 9.7 I 10.3 12 I 11.6 1 12.4 13.6 14.4 -$+I- 15.6 16.4 ZO I 19.6 1 20.4 2
32、5 I 24.6 1 25.4 30 I 29.6 1 30.4 45 I 44.5 I 45.5 50 I 49.5 I 50.5 55 I 54.4 1 55.6 60 I 59.4 I 60.6 Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/15/2007 09:08:51 MDTNo reproduction or networkin
33、g permitted without license from IHS -,-,- J I S B*LLL7 95 = 4933608 053LbL TY2 1 7 . B 1117-1995 Attached Table 5. (continued) Remarks 1. That of which designation of screw thread is given in parentheses should not be used as far as possible. 2. Preferable nominal length (I) for the designations of
34、 screw thread shall be within the frame of bold lines. However, I given in parentheses should not be used as far as possible. In the case where other I than given in this table is particularly required, it shall be so designated by the purchaser. 3. The shapes and dimensions for screw ends shall be
35、in accordance with JIS B 1003. Informative reference: In IS0 Standards, those which are corresponding to the slotted set screws with rounded end are not specified. Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not
36、for Resale, 03/15/2007 09:08:51 MDTNo reproduction or networking permitted without license from IHS -,-,- - J I S B*1117 95 4733608 0533762 787 B 1117-1995 Edition 1 I. Japanese Text Established by Minister of International Trade and Industry Date of Establishment: 1962-03-01 Date of Revision: 1995-
37、11-01 Date of Public Notice in Official Gazette: Investigated by: 1995-11-01 Japanese Industrial Standards Committee Divisional Council on Machine Elements This English translation is published by: Japanese Standards Association 1-24, Akasaka 4, Minato-ku, Tokyo 107 Japan O JSA, 1996 Printed in Tokyo by Hohbunsha Co., Ltd. Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/15/2007 09:08:51 MDTNo reproduction or networking permitted without license from IHS -,-,-
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