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1、oc 2n pc“ NH rl VlLi r l ! a ; o o 1 1 2 2 3 3 4 4 5 5 6 6 8 8 10 10 12 12 1/4 1/4 5/16 5/16 3/8 3/8 7/16 7/16 1/2 1/2 9/16 9/16 5/8 5/8 3/4 3/4 c o c 80 64 72 56 64 48 56 40 48 40 44 32 40 32 36 24 32 24 28 20 28 18 24 16 24 1 4 20 13 20 12 18 11 18 10 16 ,063 .O68 ,068 .O89 .O89 .O86 .O86 .lo6 .lo
2、6 ,121 .121 ,136 .l36 .156 .156 .171 .171 .216 .216 .245 .245 .261 -261 .276 .276 .300 JOO ,342 .342 .406 .406 .O40 .O45 .O45 .O66 .O66 .O52 .O52 .O72 .O72 .O87 .O87 .lo2 .lo2 .116 .116 .131 .131 .174 .174 .203 .e03 .219 .219 .234 .234 .258 .25e .283 .283 .347 .347 .244 .244 .292 ,292 .o83 .o33 .lo3
3、 .lo0 .389 .389 .452 .452 .568 .568 .685 .685 -723 .723 .775 .775 .l32 .132 .153 .153 .191 .191 .230 .230 .223 .223 .223 .223 GENERAL MOTORS ENGINEERING STANDARDS FLAT HEAD CROSS RECESS MACHINE SCREWS ROUNDED OR FLAT EDGE OPTIONAL TMICKNESS OPTIONA PROTRUSION GAGE SEE GEN SPEC 8 K -R UNDERCUT HEAD (
4、SEE GEN SPEC1 , 3 0 rl h h n - O O O 1 1 1 1 1 1 2 2 2 2 2 2 2 2 3 3 3 3 4 4 4 4 4 4 4 4 4 4 5 5 5 5 - - - S - age Dia. A K THREAD DETAIL T ?rotrusion of Head 4bove Gage liame ter Recess Diame t er Pene- Depth Body Diameter Pitch Diameter (see Gen, Spec.) - lax. - lin. - ,016 I 016 I 016 ,017 .O17 .
5、 018 .O18 .o19 .o19 .o20 .o20 .o21 .o21 .O23 .O23 .O25 .O25 .O27 .O27 .o29 .O29 .O34 .O34 .O39 .O39 .O44 .O44 .o49 .O49 .O53 .O53 . O58 .O58 .O67 .O67 - - - lax. - t 036 044 ,044 ,056 I 056 ,061 I 061 .O82 I082 ,075 .O75 ,095 I09Z ,110 .11c ,125 .12c ,139 .139 .154 .154 .19e .I96 .22E .22: .241 .241
6、 .25F .25E .28C .28( .30E .30C 37: .37: - - - Min. - .O496 -0603 .O615 .O717 .O733 .O825 .O845 .O925 .O954 .lo54 .lo70 .1141 .1184 .1399 -1424 .1586 .1658 -1845 .la86 .2127 .2225 .2712 .2806 .3287 .3430 .3850 .3995 .4435 -4619 .5016 .5205 .5589 .5828 .6773 .7029 - - - lax. - ,069 077 ,077 ,102 ,102
7、I 107 107 ,128 ,128 ,154 ,154 ,174 ,174 ,189 ,189 ,204 .204 I 268 ,268 ,283 I 283 ,365 ,365 .39c .391 .409 -40s .424 .424 .454 .45lain :admium or Zinc hosphate Coated ?lain :admiun or Zinc ?hosphate Coated ?lain 2admium or Zinc ?hosphate Coated ?lain :admiun or Zinc ?hosphate Coated Plain :admiun or
8、 Zinc ?hosphate Coated Plain Jadmium o r Zinc Phosphate Coated Plain 2admium or Zinc Phosphate Coated Plain Zadmium or Zinc Phosphate Coated Plain Zadmium or Zinc Phosphate Coated Plain :admiun or Zinc Phosphate Coated Plain Zadmium or Zinc Phosphate Coated Plain Cadmium o r Zinc Phosphate Coated Pl
9、ain Jadmium or Zinc Phosphate Coated Plain Cadmium or Zinc Phosphate Coated Plain Cadmium o r Zinc Phosphate Coated Chromium-Bright Plain Cadmium or Zinc Plain Cadmium or Zinc C hromium-Bright Chromium-Bright Phosphate Coated.“ HDR-PT., Chromium-Bright HDR.PT., Cadmium or Zinc GM Part Number 3400435
10、 3400454 3400473 3400436 3400455 3400474 3400437 3400456 3400475 3400438 3400457 9400476 3400439 3400458 9400477 9400440 9400459 9400478 3400441 9400460 9400479 9400442 9400461 9400480 9400443 9400462 9400481 9400444 9400463 9400482 9400445 9400464 9400483 9400446 9400465 9400484 9400447 9400466 940
11、0485 9400448 9400467 9400486 9400449 9400468 9400487 9400450 9400469 9400488 9400451 9400470 9400489 9 4 O0 4 52 9400471 9400490 9400453 9400472 9400491 9422931 443948 443949 941153E 9411535 446876 455984 942302: 431968 9423074 3 Size 8-32“ 8-32 8-32 8-32 8-32 8-32 8-32 8-32 8-32 8-32 8-32 8-32 8-52
12、 8-32 8-32 8-32 8-32 8-32 8-32 8-32 10-24 10-24 10-24 10-24 10-24 10-24 10-24 10-24 10-24 10-24 10-24 10-24 10-24 10-24 10-24 10-24 10-24 10-24 10-24 10-24 10-24 10-24 10-24 10-24 10-24 10-24 10-24 10-24 10-24 10-24 8-32 10-32 10-32 10-32 10-32 10-32 12-24 12-24 12-24 12-24 12-24 1/4-20“ 1/4-20“ 1/4
13、-20“ 1/4 - 201 1/4-20* 1/4-20“ 1/4-20“ 1/4 -204 1/4-20“ 1/4 -2 O“ 1/4-20 1/4-20 Length 1/4 3/8 3/8 1/2 1 /2 5/8 5/8 5/8 3/4 3/4 3/4 7/8 7/8 9/16 11/16 1 1 1 1-7/8 1-7/8 3/8 3/8 1 /2 1/2 1/2 1 /2 1 /2 5/8 5/8 5/8 3/4 3/4 3/4 1 1 -l/8 1-1/8 1-1/4 1-1/4 1 -3/8 1-3/8 1 - 5/8 2-3/8 2-3/8 2-7/8 3 3-1/2 3-
14、1/2 1/2 9/16 9/16 9/16 1/2 7/8 1-1/8 1-3/8 3 5/16 5/16 5/16 5/16 5/16 3 /a 3/8 3/8 3/8 3/8 1% - Description-Finish or. Res. Steel, Plain IDR.PT., Cadmium o r Zinc WR.PT., Chromium-Bright iDR.PT., Cadmium or Zinc DR.PT., Chromium-Bright iDR.PT., Zinc Bri GM 4363-1 :admiun or Zinc iDR.PT., Cadmium o r
15、 Zinc iDR.PT., Chromium-Bright iDR.PT., Zinc Bri GM 4363- :admium or Zinc :inc iDR.PT., Cadmium o r Zinc DR.PT., Chromium-Bright IDR.PT., Cadmium or Zinc iDR.PT., Chromium-Bright !inc IDR.PT., Cadmium o r Zinc iDR.PT., Chromium-Bright lain :admium o r Zinc IDR.PT., Cadmium or Zinc iDR.PT., Chromium-
16、Bright hosphate Coated:% DR.PT., Plain DR.PT., Cadmium o r 7inc IDR.PT., Chromium-Bright iDR .PT., Cor.Res .St. ,Plain DR.PT., Cadmium or Zinc iDR.PT., Phosphate Coated IDR.PT., Chromium-Bright DR.PT., Cadmium o r Zinc HDR.PT., Phosphate Coated FDR-PT., Chromium-Bright IDR.PT., Cadmium o r Zinc HDR.
17、PT., Chromium-Bright iDR.PT., Cadmium o r Zinc HDR.PT., Chromium-Bright Plain Zadmium or Zinc HDR.PT., Cadmium or Zinc HDR.PT., Chromium or Zinc Plain Cadmium or Zinc Cadmium or Zinc Plain Cadmium or Zinc Cadmium or Zinc Cadmium o r Zinc Plain Cadmium or Zinc HDR.PT., Cadmium o r Zinc HDR.PT., Phosp
18、hate Coated HDR.PT., Cadmium o r Zinc HDR.PT., Cadmium HDR.PT., Phosphate Coated HDR.PT., Cadmium o r Zinc HDR.PT., Cor. Res. St.,Pla: Cadmium o r Zinc Cadmium or Zinc Cadmium or Zinc Plain Cadmium or Zinc Phosphate Coated C hr omium-Br ight N ickel-Bright Plain Cadmium o r Zinc Phosphate Coated C h
19、romim-Bri ght Nickel-Bright HDR.PT., Cadmium o r Zinc Brass, Plain have undercut heads, see paragraph on head height in General Specifications. ges C-1.201 and C-1.202. For additional sizes see following page. GM Part Number 273788 1418323 456848 1415920 )418330 1423445 446868 456874 )418331 )423679
20、 273654 )416795 )418324 3418332 )418325 )418333 416915 i418050 3418334 148039 191894 3418326 3418335 3423291 177934 177935 3418336 3418712 3417790 3422147 3417771 3417770 179389 9418337 3418327 3418338 3418328 9418339 155202 191895 9418329 9418340 178440 191896 451258 178475 192443 454806 451256 178
21、476 191897 447122 9418906 178404 9416189 443853 9417372 188986 455641 455642 451250 156219 156220 156223 156221 156222 156224 156225 156233 156228 156229 9416144 158307 Printed in U.S.A. ENGRG . STDS . PAGE C-1.251 SEPTEMBER, 1965 Copyright General Motors North America Provided by IHS under license
22、with GM Licensee=IHS Employees/1111111001, User=Japan, IHS Not for Resale, 06/24/2008 01:02:21 MDTNo reproduction or networking permitted without license from IHS -,-,- V N D s G H VOL I SEC C-ENGL 17b3 D 700b379 0030947 Ob8 GENERAL MOTORS ENGINEERING STANDARDS FLAT HEAD CROSS RECESS MACHINE SCREWS
23、ADDITIONAL SIZES, MATERIALS OR FINISHES SAE 1010- 1020 STEEL UNLESS OTHERWISE SPECIFIED Size 1/4-20 1/4-20 1/4-20 1/4-20 1/4-20 1/4-20 1/4-20 1/4-20 1/4-20 1/4-20 1/4-20 1/4-20 1/4-20 1/4-20 1/4-20 1/4-20 1/4-20 1/4-20 1/4-20 1/4-20 1/4-20 1/4-20 1/4-20 1/4-20 1/4-20 1/4-20 1/4-20 1/4-20 1/4-20 1/4-
24、20 1/4-20 1/4-20 1/4-20 1/4-20 1/4-20 1/4-20 1/4-20 1/4-20 1/4-20 1/4-20 1/4-20 1/4-20 1/4-20 1/4-20 1/4-20 1/4-20 1/4-20 1/4-20 1/4-20 1/4-20 1/4-20 1/4-20 1/4-28* 1/4-28 1/4-28 1/4-28 1/4-28 5/16-18 5/16-18 5/16-18 5/16-18 5/16-18 5/16-18 5/16-18 5/16-18 5/16-18 5/16-18 5/16-18 5/16-18 5/16-18 5/1
25、6-18 5/16-18 5/16-18 Length 1/2 1/2 5/8 5/8 5/8 5/8 5/8 3/4 3/4 3/4 3/4 3/4 3/4 7 / 5 3 7/8 7/8 7/8 7/8 7/8 15/16 1 1 1 1 1-1/8 1-1/8 1-1/8 1-1/8 1-1/4 1-1/4 1-1/4 1 4 2 1-1/2 1-1/2 1 - 5/8 1-5/8 1-3/4 1-3/4 1-3/4 2 2 2 2-3/8 4 4-1/2 4-1/2 5-1/2 8-1/4 3-5/8 4-3/4 7-3/4 11-1/8 7/16 3 ( 4 1-1/4 1 4 2
26、5/8 3/4 3/4 3/4 7/8 7/8 7/8 9/16 3: 7 1 1 1 1 1-1/8 * These screws shal Description - Finish Brass, Chromium-Bright Brass, Nickel-Bright HDR.PT., Cadmium or Zinc HDR.PT., Phosphate Coated Brass, Plain Brass, Chromium-Bright Brass, Nickel-Bright JDR.PT., Plain HDR.PT., Cadmium or Zinc HDR.PT., Chromi
27、um-Bright Brass, Plain Brass, Chromium-Bright Brass, Nickel-Bright DRIFT., Cadmium or Zinc HDR.PT., Phosphate Coated HDR.PT., Chromium-Bright Brass, Plain Brass, Chromium-Bright Brass, Nickel-Bright Cadmium or Zinc HDR.PT., Cadmium or Zinc Brass, Plain Brass, Chromium-Bright Brass, Nickel-Bright Pla
28、in Cadmium or Zinc Phosphate Coated Phosphate Coated* Brass, Plain Brass, Chromium-Bright Brass, Nickel-Bright Brass, Plain Brass, Chromium-Bright Brass, Nickel-Bright Plain Cadmium or Zinc Brass, Plain Brass, Chromium-Bright Brass, Nickel-Bright Brass, Plain Brass, Chromium-Bright Brass, Nickel-Bri
29、ght Cadmim or Zinc Plain Plain Plain Cadmium or Zinc Plain Plain Plain Plain Plain Cadmium WR.PT., Cadmium or Zinc Brass, Plain Cor. Res. Steel, Plain Cor. Res. Steel, Plain Plain Brass, Plain WR.PT., Plain f I D R . P T . , Cadmium or Zinc Brass, Plain Brass, Chromium-Bright Brass, Nickel-Bright HD
30、R.PT., Cadmium or Zinc Brass, Plain Brass, Chromium-Bright Brass, Nickel-Bright HDR.PT., Cadmium or Zinc Brass, Plain Brass. Chromium-Bright Brass, Nickel-Bright Cadmium or Zinc GM Part Number 158308 158309 443939 186444 158310 158311 158312 188081 179346 9423390 158313 158314 158315 9417 535 443878
31、 446014 158316 158317 158318 444478 455559 158319 158320 158326 186529 186982 446879 9419228 158329 158330 158331 158332 158333 158334 148381 9411625 158335 158336 158337 158338 158339 158340 9424316 155282 191670 1733 54 179155 178441 173364 178442 178477 178478 274576 178412 426667 9423916 9423880
32、 445642 179002 442611 186931 158341 158345 158349 186511 158350 158351 1583 52 186985 158353 158355 158357 187253 have undercut heads, see paragraph f M GM 4435-M, Code A. For dimensions see Pages C-1.201 and C-1.202. on head he size 5/16-18 5/16-18 5/16-18 5/16-18 5/16-18 5/16-18 5/16-16 5/16-18 5/
33、16 -1 8 5/16-18 5/16-18 5/16-18 5/16 -18 5/16-18 5/16-18 5/16-18 5/16-18 5/16-18 5/16-24 5/16-24 5/16-24 3/8-16 3/8-16 3/8-16 3/8-16 3/8-16 3/8-16 3/8-16 3/8-16 3/8-16 3/8-16 3/8-16 3/8-16 3/8-16 3/8-16 3/8-16 3/8-16 3/8-16 3/8-16 3/8-16 3/8-16 3/8-16 3/8-16 3/8-16 3/8-16 3/8-16 3/8-16 3/8-16 3/8-16
34、 3/8-16 3/8-16 3/8-16 3/8-16 3/8-24 3/8-24 3/8-24 7/16-20 1/2-13 1/2-20 1/2-20 9/16-12 9/16-12 Length 1-1/8 1-1/4 1-1/4 1-1/4 1-1/4 1-3/8 1-1/2 i-1/2 1 -1/2 1-3/4 1-3/4 1-3/4 2 2 2 3 -1/2 3-3/4 3 -3/4 7/8 7/8 i-i/a 3/4 3/4 3 /4 3/4 7/8 7/8 7/8 1 1 1 1 1-1/4 1-1/4 1-1/4 1-1/4 1-3/8 1-3/8 1 -l/8 1-1/2
35、 1 4 2 1-1/2 1-3/4 1 -3/4 1 -3/4 2 2 2 3-1/4 3-1/4 3-3/8 3-3/8 5/8 4 1-5/8 1-5/8 1-1/8 1 -3/8 2-1/8 2-1/8 1 2 - 1/4 ;ht in General Spec Description - Finish HDR.PT., Cadmium or Zinc HDR.PT., Cadmium or Zinc Brass, Plain Brass, Chromium-Bright Brass, Nickel-Bright HDR-PT., Cadmium or Zinc Brass, Plai
36、n Brass, Chromium-Bright Brass, Nickel-Bright Brass, Plain Brass, Chromium-Bright Brass, Nickel-Bright Brass, Plain Brass, Chromium-Bright Brass, Nickel-Bright Cadmium or Zinc P1 ein Cadmium or Zinc Cadmium Dichromate HDR-PT., Plain Phosphate Coated HDR.PT., Cabium or Zinc Brass, Plain Brass, Chromi
37、um-Bright Brass, Nickel-Bright Brass, Plain Brass, Chromium-Bright Brass, Nickel-Bright HDR.PT., Cadmium or Zinc Brass, Plain Brass, Chromium-Bright Brass, Nickel-Bright Brass; Plain HDR.PT., Cadmium or Zinc - Brass, Plain Brass, Chromium-Bright Brass. Nickel-BriPht Plain- HDR.PT., Cadmium or Zinc B
38、rass, Plain - Brass, Chromium-Bright Brass, Nickel-Bright Brass, Plain Brass, Chromium-Bright Brass, Nickel-Bright Brass, Plain Brass, Chromium-Bright Brass, Nickel-Bright Plain Cadmium or Zinc Plain Cadmium or Zinc Cadmium or Zinc Cadmium Dichromate Plain Cadmium or Zinc Cadmium or Zinc Plain Plain
39、 Cadmium or Zinc Plain Plain f ications. GM Part Number 186977 186974 158358 158360 158361 186513 158362 158363 158364 158365 158367 158368 158369 158370 158371 453682 178706 179160 453308 173097 271408 9424331 158372 158373 1583 74 158375 158376 158377 9418266 158378 158379 158380 179003 9417853 15
40、8381 158382 158383 148105 186978 158384 158386 158387 158389 158391 158392 158393 1 m 9 4 158395 155357 192442 186815 192444 273784 453309 190813 191910 192445 192446 191142 191923 173468 174917 Rimed in U.S.A. ENGRG . STDS . PAGE C-1.252 SEPTEMBER, 1965 Copyright General Motors North America Provid
41、ed by IHS under license with GM Licensee=IHS Employees/1111111001, User=Japan, IHS Not for Resale, 06/24/2008 01:02:21 MDTNo reproduction or networking permitted without license from IHS -,-,- VND.GM V O L I S E C C-ENGL L9b3 a 900b377 0030948 T T 4 m Total Height of H e ad GENERAL MOTORS ENGINEERIN
42、G STANDARDS Recess Recess Diameter Width ROUNDED OR OVAL HEAD CROSS RECESS MACHINE SCREWS FLAT EDGE OPTIONAL SEE GEN SPEC Recess Depth Pene- um tration 22 Gaging zz Depth G.= ax. 038 041 041 062 062 074 074 087 087 ,074 074 ,094 ,094 ,108 ,108 ,126 ,126 ,135 .135 .156 .156 .218 .218 .237 .237 .249 .
43、249 .263 -263 .296 .296 -323 .323 .388 .388 Max. .O24 .O29 .O29 .O34 .O34 .O40 .O40 .O45 .O45 .O50 .O50 .O55 .O55 .O66 .O66 .O76 ,076 ,086 .O86 .1OC .lo0 .125 .125 .15C .1SC .17: .175 .2OC .20C .225 .225 .25C .25C .30C .30C .O56 .O68 .O68 .O80 .O80 .O41 .O61 .O74 .O52 .O64 .O77 .O52 .O64 .O77 .O63 .
44、O99 .112 .O63 .O99 .112 .176 .176 .200 .200 .232 ,232 .290 .290 .347 .347 .345 -345 .354 .354 .410 -410 .467 .467 ,148 .196 .209 -148 -196 -209 .169 .257 .270 .169 -257 .270 .197 .277 .290 .197 .277 .290 .249 -377 .390 ,249 ,377 .390 .300 .397 .410 .300 .397 .410 .295 .409 .422 -295 .409 .422 .299 -
45、424 .437 -299 .424 .437 .350 .450 .473 .350 -450 .473 .399 .568 .591 .399 -568 .591 .148 .148 .214 .214 .173 -131 .173 -131 .238 -194 .238 .194 .245 .245 .259 .259 .269 -225 .269 .225 .283 .235 .283 .23S SEE GEN S P E C 1 I- A 4 UNDERCUT HEAD (SEE GEN SPEC) - - 2 U L m a m P m c E - 90 34 72 56 64 4
46、8 56 40 48 40 44 32 40 32 36 24 32 24 28 20 28 18 24 16 24 14 20 13 20 12 18 1 1 18 10 16 - - - C - Head Side ;eight - Max. Ref. - . O 3 5 .O43 .O43 .O51 . O 51 .O59 .o59 .O67 .O67 .O75 .O75 .O83 .O83 .loo .loo .116 .116 -132 .132 .153 .153 .191 .191 .230 .230 .223 .223 .223 .223 -260 .260 .298 .298
47、 .372 -372 - - - - D 4 I D j - 1 1 1 L 1 1 1 1 1 2 2 2 2 2 2 2 2 3 3 3 3 4 4 4 4 4 4 4 4 4 4 5 5 5 5 - - N (01 R I I A D/ KI M I I B THREAD DETAIL Body Diameter Head Dlamet er Pitch Diameter (See Gen. Spec.) - Min. lax. Min. Min. Max. Min. T-!-Tl- - Max. - lax. - Yin. Max. sharp Min., Edge : o u e d
48、 r Flat O 1 1 2 2 3 3 4 4 5 5 6 6 8 8 10 10 12 12 1/4 1/4 5/1f 5/U 3/8 3/8 7/11 7/11 U 2 9/1i 9/1( 5/ 5/ 3/4 3/4 - - ,0600 I 0730 ,0730 .O860 .O860 .o990 .o990 .1120 .u20 .1250 .1250 .1380 .1380 .1640 .1640 .1900 .1900 .2160 -2160 -2500 .2500 .3125 .3125 .3750 .3750 -4375 .4375 .soo0 .5ooc .5625 .56
49、25 .625C .625C .750C .750C - - .O496 .O603 .O615 .O717 .O733 .O825 .O845 .O925 .O954 .lo54 .lo70 .1141 .1184 .139C .1424 .1586 .165 .le45 .188 .212: .222, .27U .280 .328: .343( .385( -399: .443: .461E .501f .520: .558! .582 .677; -7025 - - .119 .146 .146 .172 .172 .199 .199 .225 .225 .252 .252 .279 .279 .332 .332 .385 .385 .438 .438 .SO7 -507 .635 -635 .762 .762 .a12 .a12 .a75 .a75 1.ooc 1. ooc 1.12: 1.125 1.37: 1.37: - - 0514 0623 0634 0738 0753 ,0848 0867 I o9