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1、- STD*JIS B 2177-ENGL 2777 m 4733b08 0537307 m JIS JAPANESE INDUSTRIAL STANDARD Hexagon socket set screws 0 JIS B 1 1 7 7 - 1 9 9 7 Translated and Published bY Japanese Standards Association UDC 621.882.2 Printed in Japan 10 s COPYRIGHT Japanese Standards Association Licensed by Information Handling
2、 Services COPYRIGHT Japanese Standards Association Licensed by Information Handling Services STD-JIS B 3377-ENGL 3997 W 4733b08 0537330 I T 0 In the event of any doubt arising, the original Standard in Japanese is to be final authority Errata for JIS (English edition) are printed in Standardization
3、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 provided to subscribers of JIS
4、(English edition) in Monthly Information. COPYRIGHT Japanese Standards Association Licensed by Information Handling Services COPYRIGHT Japanese Standards Association Licensed by Information Handling Services STD-JIS B 1177-ENGL 1997 4733bO 0537311 237 m JAPANESE INDUSTRIAL STANDARD JIS B 1177- 1997
5、Hexagon socket set screws Introduction This Japanese Industrial Standard has been prepared based on IS0 4026, IS0 4027, IS0 4028 and IS0 4029 published in 1993 as the 2nd edition, without alteration in the technical contents with respect to the corresponding parts (quality, shape and dimensions). Ho
6、wever, items which are not specified in the corresponding International Standards are appended to this Standard as Japanese Industrial Standard. 1 Scope This Japanese Industrial Standard specifies the steel hexagon socket set screws (hereafter referred to as “steel set screwsy7), stainless steel hex
7、agon set serews (hereafter referred to as “stainless set screws”) and the nonferrous metal hexagon set screws (hereafter referred to as “nonferrous screws”) generally used. Remarks 1 When the steel set screws, stainless set screws and nonferrous set screws are generically called, these are simply ca
8、lled “set screws”. 2 The set screws specified in this Standard shall not be used as being subjected to the tensile load. The standards cited in this Standard are given in the following: 3 JIS B 0101 JIS B 0143 JIS B 0205 JIS B 0209 JIS B 0215 JIS B 1003 JIS B 1021 JIS B 1041 JIS B 1043 JIS B 1044 JI
9、S B 1053 JIS B 1054 JIS B 1057 JIS B 1071 JIS B 1091 Screw threads and fasteners - Vocabulary Symbols and designations of dimensions for threaded fasteners Metric coarse screw threads Limits of sizes and tolerances for metric coarse screw threads Tolerance system for metric screw threads Ends of par
10、ts with external metric screw thread Tolerance system for threaded fasteners Fasteners- Surface discontinuities -Part 1: Bolts, screws and studs for general requirements Fasteners-Surface discontinuities -Part 3: Bolts, screws and studs for special requirements Threaded components - Electroplated co
11、atings Mechanical properties of steel set screws Specification for corrosion-resistant stainless steel fasteners Mechanical properties of non - ferrous metal fasteners Method of verification for size and geometry of threaded fasteners Fasteners - Acceptance inspection 7 4 The corresponding Internati
12、onal Standards to this Standard are given in the following : COPYRIGHT Japanese Standards Association Licensed by Information Handling Services COPYRIGHT Japanese Standards Association Licensed by Information Handling Services STD-JIS B 1177-ENGL 3977 m Li933b08 0537332 L73 m Steel 2 B 1177-1997 Sta
13、inless steel Nonferrous metal IS0 4026 : 1993 Hexagon socket set screws with flat point IS0 4027 : 1993 Hexagon socket set screws with cone point IS0 4028 : 1993 Hexagon socket set screws with dog point IS0 4029 : 1993 Hexagon socket set screws with cup point 2 Definitions The definitions of main te
14、rms used in this Standard shall be in accordance with JIS B 0101. 3 point, dog point and cup point according to the shapes of screw point. 4 Types The types of the set screws shall be classified into four types of flat point, cone Quality The quality of set screws shall be in accordance with Table 1
15、. Mechanical properties Screw threads Tolerances Division Applicable standards Tolerance Applicable standards Part grade Applicable standard Surface treatments Surface discontinuities Strength division 45H Steel class division Al, A2 - ( I ) JIS B 1053 I JIS B 1054 I JIS B 1057 JIS B 0205, JIS B 020
16、9, JIS B O215 A JIS B 1021 In general, the black oxide I film by the thermal treatment or chemical Surface treatment shall not be processed in general. treatment. When the electroplating is to be processed, it shall be in accordance with JIS B 1044. However, when different electroplating not in acco
17、rdance with JIS B 1044 or other surface treatment is to be processed, it shall be as agreed between the customer and suoolier. Unless otherwise specified, JIS B 1041 or JIS B 1043 shall apply. Notes () In the case of nonferrous metal, it shall be in accordance with the material division of JIS B 105
18、7, however, the mechanical properties shall be as agreed between the customer and supplier. ( 2 ) The limit of size and tolerances of 5g6g shall be in accordance with Attached Table 6. 5 Shapes and dimensions The shapes and dimensions of set screws shall be in accordance with Table 2. COPYRIGHT Japa
19、nese Standards Association Licensed by Information Handling Services COPYRIGHT Japanese Standards Association Licensed by Information Handling Services STD-JIS B 3377-ENGL 3777 4933608 0537333 OUT = Type Flat point Cone point Dog point 3 B 1177-1997 Shape and dimensions In accordance with Attached T
20、able 1. In accordance with Attached Table 2. In accordance with Attached Table 3. Table 2 Shapes and dimensions Cup point In accordance with Attached Table 4. Stainless set screws Nonferrous set screws 6 Materials and thermal treatment The materials and thermal treatment shall be in accordance with
21、Table 3. Al, A2 - In accordance with 5 of JIS B10.54. - - In accordance with 4 of J E B1057. Table 3 Materials and thermal treatment Division of mechanical Thermal treatment according to materials properties Division of set screws 1 ! Material Steel set screws I 45 H 1 Quenching and tempering I In a
22、ccordance with 3 of JIS B10.53. 7 Inspection The inspection of set screws shall be in accordance with the following. Inspection on mechanical properties Inspection on mechanical properties of steel set screws The inspection on mechanical properties of steel set screws shall be carried out in accorda
23、nce with the methods specified in JIS B 1053, and the results shall satisfy the requirements of property class 45 H specified in JIS B 1053. Inspection on mechanical properties of stainless set screws The inspection on mechanical properties of stainless set screws shall be carried out in accordance
24、with the method specified in JIS B 1054, and the results shall satisfy the requirements of property class Al or A2 specified in JIS B 1054. Inspection on mechanical properties of nonferrous set screws The inspection on mechanical properties of nonferrous set screws shall be as agreed between the cus
25、tomer and supplier. Inspection on shapes and dimensions The inspection on shapes and dimensions shall be carried out in accordance with the measuring method of each part dimensions of JIS B 1071 or the method instead of this, and the results shall conform to 5. socket gauge specified in Attached Tab
26、le 5. Further, the inspection on hexagonal socket shall be carried out using the hexagonal 7.3 Inspection on screw threads The inspection on screw threads shall be carried out in accordance with the accuracy measuring method on external threads of JIS B 1071, and the COPYRIGHT Japanese Standards Ass
27、ociation Licensed by Information Handling Services COPYRIGHT Japanese Standards Association Licensed by Information Handling Services STD*JIS B LL77-ENGL 3797 4733b08 0537334 TVb = 4 B 1177-1997 results shall conform to the screw threads of Table 1. shall be used. Further, as to the Gering gauge for
28、 those processed with electroplating, that of for 4 h 7.4 Inspection on geometrical tolerances The inspection on geometrical tolerances shall be carried out in accordance with the measuring method on geometrical deviations of JIS B 1071 or the method instead of this, and the results shall conform to
29、 the geometrical tolerances specified in product grade A of JIS B 1021. 7.5 Inspection on surface discontinuities The inspection on surface discontinuities, unless otherwise specified, shall be carried out according to JIS B 1041 or JIS B 1043, and the results shall conform to the permissible limits
30、 specified in these. 7.6 Acceptance inspection The acceptance inspection, unless otherwise specified, shall be in accordance with JIS B 1091. 8 Designation The set screws shall be designated by the Standard No. or title of Standard, type, designation of threads (d)X nominal length (I ), division of
31、mechanical properties, and specified matter ( ). Note () As to the specified matter, the type of surface treatment or the like is indicated, as required. Example : JIS B 1177 Flat point M6 x 12 45H AK( Hexagon socket Flat point M6 X 12 A2 set screw II7 I I 1 1 I I Division of ) (Specified mechanical
32、 property matter Standard No. or (type) ( title of Standard 1 Note (4) A2K is in accordance with the symbol of the Annex D of JIS B 1044. 9 Marking The package of the set screws shall be marked with the following matters on the outer face. Title of Standard T Y Pe Designation of threads X nominal le
33、ngth Division of mechanical property Material () Specified matter Quantity Manufacturers name or abbreviation (for the abbreviation, the registered trademark should preferably be used.) Note ( 5 ) The marking of material may also be of its general name, however, it may be omitted if not necessary. C
34、OPYRIGHT Japanese Standards Association Licensed by Information Handling Services COPYRIGHT Japanese Standards Association Licensed by Information Handling Services STD-JIS B 1177-ENGL 1777 4933b08 0537315 782 W Designationof threads( M1.6 M2 M2.5 M3 M4 M5 M6 M8 M10 M12 M16 M20 Pitch (P) 0.35 0.4 0.
35、45 0.5 0.7 0.8 1 1.25 1.5 1.75 2 2.5 Max. 0.80 1.00 1.50 2.00 2.50 3.5 4.0 5.5 7.00 8.50 12.00 15.00 Min. 0.55 0.75 1.25 1.75 2.25 3.2 3.7 5.2 6.64 8.14 11.57 14.57 _._ _ . . . . 4 Attached Table 1 M24 3 18.00 17.57 -.-.-. 5 B 1177-1997 2 2.5 Hexagon socket set screws- shape and dimensions of flat p
36、oint 1.8 2.2 0.021 0.029 0.05 0.059 2.3 2.7 0.025 0.037 0.063 0.08 0.099 Drill bottom socket is permissible. 50 55 60 49.5 50.5 23.7 33.4 60.7 94.1 132 36.8 67.3 104 147 54.4 55.6 40.3 73.7 115 162 59.4 60.6 Nominal length1 Min. I Max. I i 5 I 4.76 I 5.24 10 I 9.71 I 10.29 39.5 45 COPYRIGHT Japanese
37、 Standards Association Licensed by Information Handling Services COPYRIGHT Japanese Standards Association Licensed by Information Handling Services STD*JIS B 1177-ENGL 1777 t733b08 053731b B17 6 B 1177-1997 Notes (6) 120“ countersink shall be processed for the short -length screws of nominal length
38、( Z ) , situated above the stepped double lines in attache1 Table 1. The angle of approx. 45“ applies to the tapered parts under the minor diameter of external threads. e min.=1.14Xs min. However, the designation of threads M1.6, M2 and M 2.5 shall be omitted. s shall be examined using the hexagon s
39、ocket gauge specified in Attached Table 5. The values in upper row of t min. apply to the short-length screws of nominal length ( I ), situated above the stepped double lines. The values in lower row of t min. apply to the long-length screws of nominal length ( I ) , situated under the stepped doubl
40、e lines. Remarks 1 The preferable nominal length ( I ) for the designation of screw threads should be those between the stepped bold lines. The dimensional symbol shall be in accordance with JIS B 0143. The shape of hexagon-socket bottom may be one of the conical bottom and drill bottom, however, th
41、e depth of the drill socket in the case of drill bottom shall not be 1.2 times or over the depth t of the hexagon socket. Informative reference : The shapes and dimensions in this Table correspond to IS0 2 3 4026: 1993. COPYRIGHT Japanese Standards Association Licensed by Information Handling Servic
42、es COPYRIGHT Japanese Standards Association Licensed by Information Handling Services STD-JIS B L177-ENGL 1777 Li733b08 0537317 755 Designationof threads) Pitch (P) 7 B 1177-1997 M1.6 M2 M2.5 M3 M4 M5 M6 M8 M10 M12 MI6 M20 M24 0.35 0.4 0.45 0.5 0.7 0.8 1 1.25 1.5 1.75 2 2.5 3 Attached Table 2 Hexago
43、n socket set screws- shape and dimensions of cone point dt Rounding or countersink at the mouth of the hexagon socket is permissible. Max. 1 0 . 4 10.5 10.65 0.75 1 11.251 1.5 I 2 12.5 1 3 I 4 5 I 6 Drill bottom Nominalsize Max. Min. i. (O) (I) . . . . . . . . . . . . . . . . . . . . . . . . . . . U
44、nit:mm 0.7 0.9 1.3 1.5 2 2.5 3 4 5 6 8 10 12 0.724 0.902 1.295 1.545 2.045 2.560 3.071 4.084 5.084 6.095 8.115 10.115 12.142 0.711 0.889 1.270 1.520 2.020 2.520 3.020 4.020 5.020 6.020 8.025 10.025 12.032 0.7 0.8 1.2 1.2 1.5 2 2 3 4 4.8 6.4 8 10 1.5 1.7 2 2 2.5 3 3.5 5 6 8 10 12 15 . . . . . . . . .
45、 . . . . . . . ._._. . . . . _ . . . . . Nominal length Min. Max. 2 1.8 2.2 0.021 0.029 t 16 20 25 I . Min. 10.803 1 1.003 1 1.427 1 1.73 1 2.3 1 2.87 I 3.44 1 4.58 1 5.72 I 6.86 I 9.15 1 11.43 I 13.72 15.65 16.35 0.61 1.14 1.69 2.44 4.24 6.43 8.9 I 14.9 22.2 19.58 20.42 1.46 2.17 3.14 5.5 8.44 11.7
46、 20.1 30.4 39.7 24.58 25.42 2.77 4.02 7.08 10.9 15.3 26.6 40.7 54.2 30 35 1 I (Informative reference) Approximate mass per 1000 pieces. Unit : kg (Density : 7.85 kgdm3) 29.58 30.42 4.89 8.65 13.5 18.8 33.1 51 68.7 34.5 35.5 10.2 16 22.3 39.6 61.3 83.2 8 7.71 8.29 0.07 0.119 0.199 0.29 0.5 10 9.71 10
47、.29 0.148 0.249 0.37 0.66 0.97 1.39 12 11.65 12.35 0.299 0.45 0.82 1.21 1.74 2.98 4.42 COPYRIGHT Japanese Standards Association Licensed by Information Handling Services COPYRIGHT Japanese Standards Association Licensed by Information Handling Services STD-JIS B 1177-ENGL 1777 q733b08 0537318 b7L 8
48、B 1177-1997 Note ( 1 2 ) The cone angle of screw point applies to the smaller diameter tip end than the minor diameter of external thread, and shall be 120“ for those of shorter nominal length, situated above the stepped double line, and 90“ for those of longer situated below the stepped doulbe line
49、s. The preferable nominal length (I) for the designation of screw threads should be those between the stepped bold lines. 2 The dimensional symbol shall be in accordance with JIS B 0143. 3 The shape and dimensions of screw end shall be in accordance of JIS B 1003. However, the value of dt (Max.) for designation of threads M5 or under shall be different from JIS B 1003. 4 The shape of hexagon-socket bottom may be one of the conical bottom and drill bottom, however, the depth of the drill socket in the case of dr