1、 WORLDWIDE ENGINEERING STANDARDS General Specification GMW16458 Metric Hexagon Bolts with Heavy Flange and M-Point, Product Grade A Copyright 2012 General Motors Company All Rights Reserved September 2012 Originating Department: North American Engineering Standards Page 1 of 10 1 Introduction Note:
2、Nothing in this standard supercedes applicable laws and regulations. Note: In the event of conflict between the English and domestic language, the English language shall take precedence. Note: Bolt Body Shank diameter on M5, M6, M8, M10, M12, M14 and M16, shall be of Reduced or Full Body Shank. Redu
3、ced shank diameter is preferred for mass savings. Note: Radius Corner Head also referred to as Acorn Head. 1.1 Scope. This standard specifies the characteristics of hexagon bolts with heavy flange and M-Point (GMW3362). This standard is based on European standard EN 1665 and ASME B18.2.3.9M 1.2 Desi
4、gnation. Not applicable. 2 References Note: Only the latest approved standards are applicable unless otherwise specified. 2.1 External Standards/Specifications. ASME B18.2.3.9M ISO 965-3 EN 1665 ISO 1502 ISO 225 ISO 3508 ISO 724 ISO 4759-1 ISO 965-1 ISO 6157-3 ISO 965-2 ISO/TS 16949 2.2 GM Standards
5、/Specifications. GMW25 GMW3362 GMW3059 GMW16551 3 Requirements 3.1 Metric Hexagon Bolt Heavy Flange and M-Point. See Figures 1 and 2. Figure 1: Metric Hexagon Bolt with Heavy Flange and M-Point (Full Body) Figure 2: Metric Hexagon Bolt with Heavy Flange and M-Point (Reduced Body) g819(04/01) Copyrig
6、ht General Motors Company Provided by IHS under license with General Motors CompanyNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-GM WORLDWIDE ENGINEERING STANDARDS GMW16458 Copyright 2012 General Motors Company All Rights Reserved September 2012 Page 2 of 10 3.2
7、Dimensions. Note 1: The top of the head shall be either full form or indented. If fastener specific detail does not specifically state indention criteria, indentation will be at the manufacturers option. Head transition shall be either chamfered or rounded with the minimum diameter of the head trans
8、ition circle at the maximum width across flats minus 15%. If the top of the head is indented, on diameters greater than M12, the periphery may be rounded. See Note 7. Note 2: Edge contour optional. Note 3: Rounded or chamfered or conical (Reduced Shank). Note 4: d2 is approximately equal to the pitc
9、h diameter (thread rolling diameter) (Reduced Shank). Note 5: Shank Diameter, see specific fillet detail. Note 6: M-point GMW3362. Note 7: r5 = (M5, M6, M8 and M10) = Radius Corner, c1 = ( M12) = Chamfer Corner, unless indented head, then rounded periphery is acceptable. See Table 1. Note 8: Kw base
10、d on ASME B18.2.3.9M. Note 9: rh = (M5, M6, M8 and M10) = Radius Corner Height. Note: Symbology per ISO 225. Figure 3: Dimensions of Metric Hexagon Bolts with Heavy Flange and M-Point Table 1: Dimensions of Metric Hexagon Bolts with Heavy Flange and M-Point Thread d M5 M6 M8 M10 M12 M14 M16 Fillet T
11、ype (See fillet detail below) F F F F Note 1 F Note 1 F Note 1 F Note 1 - - - U U U U P pitch 0.8 1.0 1.25 1.5 1.75 2.0 2.0 e max. 9.24 11.55 15.01 17.32 20.78 24.25 27.71 min. 8.71 10.95 14.26 16.49 19.86 23.15 26.51 s max. 8.00 10.00 13.00 15.00 18.00 21.00 24.00 min. 7.78 9.78 12.73 14.73 17.73 2
12、0.67 23.67 k max. 5.8 6.6 8.1 10.4 11.8 13.7 15.4 kw min. 2.4 2.7 3.6 4.6 5.2 6.3 7.1 r2 max. 0.3 0.4 0.5 0.6 0.7 0.9 1.0 r5 min. 1.25 1.5 2.0 2.5 - - - rh min. 0.8 1.0 1.5 2.0 c1 - - - - 15 to 30 15 to 30 15 to 30 Note 1: Fillet type for bolts fully threaded to head. min. = minimum max. = maximum A
13、ll dimensions are in millimeters (mm) Note 1 2 Note 3 w Note 4 d d s +1.0 0.0 0.5d r 2 k s e k d Note 7 r5 c1 Note 8 Note 5 Note 2 Note 6 Note 9 h r Copyright General Motors Company Provided by IHS under license with General Motors CompanyNot for ResaleNo reproduction or networking permitted without
14、 license from IHS-,-,-GM WORLDWIDE ENGINEERING STANDARDS GMW16458 Copyright 2012 General Motors Company All Rights Reserved September 2012 Page 3 of 10 Table 2: Dimensions of Metric Hexagon Bolts with Heavy Flange and M-Point for Long Bolts Type U Fillet Thread d M10 M12 M14 M16 Fillet Type U U U U
15、P pitch 1.5 1.75 2.0 2.0 c min. 1.5 1.8 2.1 2.4 da max. 12.5 15.2 17.7 20.5 dc max. 22.3 26.6 30.5 35.0 ds max. 10 12 14 16 min. 9.78 11.73 13.73 15.73 dv max. 10.8 12.8 14.8 17.2 dw min. 19.6 23.8 27.6 31.9 lf max. 2.1 2.1 2.1 3.2 r3 max. 0.45 0.54 0.63 0.72 min. 0.20 0.24 0.28 0.32 r4 ref. 5.7 5.7
16、 5.7 8.8 v max. 0.30 0.35 0.45 0.50 min. 0.15 0.15 0.20 0.25 min. = minimum max. = maximum All dimensions are in millimeters (mm). Note 1: Maximum and minimum under head fillet radius. Fillet shall lie within envelope. Note 2: c is measured at dw minimum. Note 3: Junction of fillet with bearing surf
17、ace to be a smooth blend. Note: Symbology per ISO 225. Figure 4: Dimensions of Metric Hexagon Bolts with Heavy Flange and M-Point for Long Bolts type U Fillet d d s d a w c d v d v v min max r 4 r l f c Note 2 Note 3 Note 1 0.50 0.25o r 3 Copyright General Motors Company Provided by IHS under licens
18、e with General Motors CompanyNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-GM WORLDWIDE ENGINEERING STANDARDS GMW16458 Copyright 2012 General Motors Company All Rights Reserved September 2012 Page 4 of 10 Table 3: Dimensions of Metric hexagon Bolts with Heavy Fla
19、nge and M-Point Fillet Type F Fully Threaded to Head Thread d M5 M6 M8 M10 M12 M14 M16 Fillet Type F F F F F F F P pitch 0.8 1.0 1.25 1.5 1.75 2.0 2.0 c min. 1.0 1.1 1.2 1.5 1.8 2.1 2.4 da max. 5.7 6.8 9.2 11.2 13.7 15.2 17.7 min. 5.1 6.2 8.3 10.212.2 14.1 16.5 dc max. 11.8 14.2 18 22.3 26.6 30.5 35
20、 ds max. 5 6 8 10 12 14 16 min. 4.36 5.21 7.04 8.86 10.68 12.50 14.5 dw min. 9.8 12.2 15.8 19.6 23.8 27.6 31.9 lf max. 0.7 0.9 1.1 1.2 1.3 1.4 1.6 r1 min. 0.2 0.25 0.4 0.4 0.6 0.6 0.6 min. = minimum max. = maximum All dimensions are in millimeters (mm). Note 1: Maximum and minimum under head fillet
21、radius. Fillet shall lie within envelope. Note 2: c is measured at dw minimum. Note: Symbology per ISO 225. Figure 5: Fillet Type F Detail for Screws, Fully Threaded to Head, All Grades 0.50o +/- 0.25o d d d d c w a s l f r 1 r 1 c Note 1 Note 2 max d s min d a min max Fillet Type F Detail for Screw
22、s Fully Threaded to Head All Grades Copyright General Motors Company Provided by IHS under license with General Motors CompanyNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-GM WORLDWIDE ENGINEERING STANDARDS GMW16458 Copyright 2012 General Motors Company All Right
23、s Reserved September 2012 Page 5 of 10 Table 4: Dimensions of Metric Hexagon Bolts with Heavy Flange and M-Point Fillet Type F Detail for Long Screws, Full Body or Shoulder, Grade 10.9 Thread d M5 M6 M8 Fillet Type F F F P pitch 0.8 1.0 1.25 c min. 1.0 1.1 1.2 da max. 5.7 6.8 9.2 dc max. 11.8 14.2 1
24、8 ds max. 5 6 8 min. 4.82 5.82 7.78 dw min. 9.8 12.2 15.8 lf max. 1.4 1.6 2.1 r1 min. 0.2 0.25 0.4 min. = minimum max. = maximum All dimensions are in millimeters (mm). Note 1: Maximum and minimum under head fillet radius. Fillet shall lie within envelope. Note 2: c is measured at dw minimum. Note:
25、Symbology per ISO 225. Figure 6: Dimensions of Metric Hexagon Bolts with Heavy Flange and M-Point Fillet Type F Detail for Long Screws, Full Body or Shoulder, Grade 10.9 d d d d c w a s l f r 1 r 1 c Note 1 Fillet Type F Detail for Long Screws GradeNote 2 0.50o 0.25o Copyright General Motors Company
26、 Provided by IHS under license with General Motors CompanyNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-GM WORLDWIDE ENGINEERING STANDARDS GMW16458 Copyright 2012 General Motors Company All Rights Reserved September 2012 Page 6 of 10 ls: Body Length minimum lg: G
27、rip Length maximum l1: Overall Length maximum leff: Thread Length minimum lnom: Nominal Threaded Length nominal Figure 7: Length Dimensions of Metric Hexagon Bolt with Heavy Flange and M-Point Note: Symbology per ISO 225. Pitch of the Thread p Thread Diameter d a Maximum (2p) Note 1 0.8 5 1.6 1.0 6
28、2.0 1.25 8 2.5 1.5 10 3.0 1.75 12 3.5 2.0 14, 16 4.0 Note 1: Minimum 1p. Note: For additional under head dimensional requirements for thread diameters not in table, reference ISO 3508. Figure 8: Unthreaded Length Dimensions Under Head Maximum l nom l g l s l1 leff l1 leff l nom l g s l Reduced Body
29、Full Body a Fully threaded screws Distance of the last full thread from the bearing face Copyright General Motors Company Provided by IHS under license with General Motors CompanyNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-GM WORLDWIDE ENGINEERING STANDARDS GMW
30、16458 Copyright 2012 General Motors Company All Rights Reserved September 2012 Page 7 of 10 Table 5: Standard Length Dimensions of Metric Hexagon Bolt with Heavy Flange and M-Point Thread M5 M6 P Pitch 0.8 1.0 s Hex. 8 10 k Max. 5.8 6.6 dc Max. 11.8 14.2 Reference Length l l1 leff lg Note 1 ls l l1
31、leff lg Note 1 ls nom. max. min. max. min. nom. max. min. max. min. 10 10 12.65 8.05 1.2 - 7.65 10.65 5.2 1.5 - 13 13 15.65 11.05 1.2 - 10.65 13.65 8.2 1.5 - 16 16 18.65 14.05 1.2 - 13.65 16.65 11.2 1.5 - 20 20 22.65 18.05 2.0 - 17.65 20.65 15.2 1.5 - 25 25 27.65 23.05 2.0 - 22.65 25.65 20.2 2.5 - 3
32、0 30 32.65 28.05 9.0 5.0 27.65 30.65 25.2 2.5 - 35 35 37.65 33.05 14.0 10.0 32.65 35.65 30.2 12.5 7.5 40 40 42.65 38.05 19.0 15.0 37.65 40.65 35.2 17.5 12.5 45 45 47.65 43.05 23.0 20.0 42.65 45.65 40.2 22.5 17.5 50 50 52.65 48.05 29.0 25.0 47.65 50.65 45.2 27.5 22.5 55 - - - - - 52.65 55.65 50.1 32.
33、5 27.5 60 - - - - - 57.65 60.65 55.1 37.5 33.5 65 - - - - - 62.65 65.65 60.1 42.5 37.5 70 - - - - - 67.65 70.65 65.1 47.5 42.5 75 - - - - - 72.65 75.65 70.1 52.5 47.5 80 - - - - - 77.65 80.65 75.1 57.5 52.5 85 - - - - - 82.65 85.65 80.1 62.5 57.5 90 - - - - - 87.65 90.65 85.1 67.5 62.5 95 - - - - -
34、92.65 95.65 90.1 72.5 67.5 100 - - - - - 95.65 100.65 95.1 77.5 72.5 105 - - - - - 100.65 105.65 100.1 82.5 77.5 110 - - - - - 105.65 110.65 105.1 87.5 82.5 115 - - - - - 110.65 115.65 110.1 92.5 87.5 120 - - - - - 115.65 120.65 115.1 95.5 92.5 125 - - - - - 120.65 125.65 120.1 100.5 95.5 Copyright
35、General Motors Company Provided by IHS under license with General Motors CompanyNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-GM WORLDWIDE ENGINEERING STANDARDS GMW16458 Copyright 2012 General Motors Company All Rights Reserved September 2012 Page 8 of 10 Thread
36、M8 M10 P Pitch 1.25 1.5 s Hex. 13 15 k Max. 8.1 10.4 dc Max. 18 22.3 Reference Length l l1 leff lg Note 1 ls l l1 leff lg Note 1 ls nom. max. min. max. min. nom. max. min. max. min. 10 - - - - - - - - - - 13 - - - - - - - - - - 16 11.65 15.7 8.7 1.9 - - - - - - 20 16.65 20.7 13.7 1.9 - 15.85 20.65 1
37、2.3 2.2 - 25 21.65 25.7 18.7 1.9 - 20.85 25.65 17.3 2.2 - 30 26.65 30.7 23.7 3.1 - 25.85 30.65 22.3 2.2 - 35 31.65 35.7 28.7 3.1 - 30.85 35.65 27.3 3.8 - 40 36.65 40.7 33.7 12.0 5.8 35.85 40.65 32.3 3.8 - 45 41.65 45.7 38.7 17.0 10.8 40.85 45.65 37.3 11.5 4.0 50 46.65 50.7 43.7 22.0 15.8 45.85 50.65
38、 42.3 16.5 9.0 55 51.65 55.8 48.6 27.0 20.8 50.85 55.75 47.2 21.5 14.0 60 56.65 60.8 53.6 32.0 25.8 55.85 60.75 52.2 26.5 19.0 65 61.65 65.8 58.6 37.0 30.8 60.85 65.75 57.2 31.5 24.0 70 66.65 70.8 63.6 42.0 35.8 65.85 70.75 62.2 36.5 29.0 75 71.65 75.8 68.6 47.0 40.8 70.85 75.75 67.2 41.5 34.0 80 76
39、65 80.8 73.6 52.0 45.8 75.85 80.75 72.2 46.5 39.0 85 81.65 85.8 78.6 57.0 50.8 80.85 85.75 77.2 51.5 44.0 90 86.65 90.8 83.6 62.0 55.8 85.85 90.75 82.2 56.5 49.0 95 91.65 95.8 86.6 67.0 60.8 90.85 95.75 87.2 61.5 54.0 100 96.65 100.8 93.6 72.0 65.8 95.85 100.75 92.2 66.5 59.0 105 101.65 105.8 96.6
40、77.0 70.8 100.85 105.75 97.2 71.5 64.0 110 106.65 110.8 103.6 82.0 75.8 105.85 110.75 102.2 76.5 69.0 115 111.65 115.8 106.6 87.0 80.8 110.85 115.75 107.2 81.5 74.0 120 116.65 120.8 113.6 92.0 85.8 115.85 120.75 112.2 86.5 79.0 125 121.65 125.8 116.6 97.0 90.8 120.85 125.75 117.2 91.5 84.0 Copyright
41、 General Motors Company Provided by IHS under license with General Motors CompanyNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-GM WORLDWIDE ENGINEERING STANDARDS GMW16458 Copyright 2012 General Motors Company All Rights Reserved September 2012 Page 9 of 10 Thread
42、 M12 M14 M16 P Pitch 1.75 2 2 s Hex. 18 21 24 k Max. 11.8 13.7 15.4 dc Max. 26.6 30.5 35 l l1 leff lg Note 1 ls l1 leff lg Note 1 ls l1 leff lg Note 1 ls nom. max. min. max. min. max. min. max. min. max. min. max. min. 25 30.8 20.85 2.6 - - 30 35.8 25.85 4.4 - 36.58 25.35 3.0 - 35 40.8 30.85 4.4 - 4
43、1.58 30.35 5.0 - 42.25 30.35 3.0 - 40 45.8 35.85 4.4 - 46.58 35.35 5.0 - 47.25 35.35 5.0 - 45 50.8 40.85 4.4 - 51.58 40.35 5.0 - 52.25 40.35 5.0 - 50 55.8 45.85 4.4 - 56.58 45.35 5.0 - 57.25 45.35 5.0 - 55 60.9 50.75 4.4 - 61.68 50.25 5.0 - 62.25 50.35 5.0 - 60 65.9 55.75 4.4 - 66.68 55.25 5.0 - 67.
44、35 55.25 5.0 - 65 70.9 60.75 4.4 - 71.68 60.25 5.0 - 72.35 60.25 5.0 - 70 75.9 65.75 21.0 12.25 76.68 65.25 5.0 - 77.35 65.25 5.0 - 75 80.9 70.75 26.0 17.25 81.68 70.25 5.0 - 82.35 70.25 5.0 - 80 85.9 75.75 31.0 22.25 86.68 75.25 27.0 17.0 87.35 75.25 5.0 - 85 90.9 80.75 36.0 27.25 91.68 80.25 32.0
45、22.0 92.35 80.25 5.0 - 90 95.9 85.75 41.0 32.25 96.68 85.25 37.0 27.0 97.35 85.25 33.0 23.0 95 100.9 90.75 46.0 37.25 101.68 90.25 42.0 32.0 102.35 90.25 38.0 28.0 100 105.9 95.75 51.0 42.25 106.68 95.25 47.0 37.0 107.35 95.25 43.0 33.0 105 110.9 100.75 56.0 47.25 111.68 100.25 52.0 42.0 112.35 100.
46、25 48.0 38.0 110 115.9 105.75 61.0 52.25 116.68 105.25 57.0 47.0 117.35 105.25 53.0 43.0 115 120.9 110.75 66.0 57.25 121.68 110.25 62.0 52.0 122.35 110.25 58.0 48.0 120 125.9 115.75 71.0 62.25 126.68 115.25 67.0 57.0 127.35 115.25 63.0 53.0 125 130.9 120.75 76.0 67.25 131.68 120.25 72.0 62.0 132.35
47、120.25 68.0 58.0 130 135.9 125.75 81.0 72.25 136.68 125.25 77.0 67.0 137.35 125.25 73.0 63.0 135 140.9 130.75 86.0 77.25 141.68 130.25 82.0 72.0 142.35 130.25 78.0 68.0 140 145.9 135.75 91.0 82.25 146.68 135.25 87.0 77.0 147.35 135.25 83.0 73.0 150 155.9 145.75 101.0 92.25 156.68 145.25 97.0 87.0 15
48、7.35 145.25 93.0 83.0 160 165.9 155.75 111.0 102.25 166.68 155.25 107.0 97.0 167.35 155.25 103.0 93.0 Note 1: For bolts above dashed line a = lg. hex. = hexagon min. = minimum max. = maximum nom. = nominal Copyright General Motors Company Provided by IHS under license with General Motors CompanyNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-GM WORLDWIDE ENGINEERING STANDARDS GMW16458 Copyright 2012 General Motors Company All Rights Reserved September 2012 Page 10 of 10 3.3 Material. Steel, GMW25. M8 Property class 8.8 M10 Property clas
