is.7727.1975 (1)

Disclosure to Promote the Right To Information

Whereas the Parliament of India has set out to provide a practical regime of right to information for citizens to secure access to information under the control of public authorities, in order to promote transparency and accountability in the working of every public authority, and whereas the attached publication of the Bureau of Indian Standards is of particular interest to the public, particularly disadvantaged communities and those engaged in the pursuit of education and knowledge, the attached public safety standard is made available to promote the timely dissemination of this information in an accurate manner to the public.

इंटरनेट मानक

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“Step Out From the Old to the New”

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“The Right to Information, The Right to Live”

“!ान एक ऐसा खजाना > जो कभी च0राया नहB जा सकता है”Bhartṛhari—Nītiśatakam

“Knowledge is such a treasure which cannot be stolen”

“Invent a New India Using Knowledge”

है”ह”ह

IS 7727 (1975): Limits of sizes for ISO metric trapezoidalbolt threads (diameter range 105 t0 300 mm) [PGD 20:Engineering Standards]

UDC 621.882.082.4: 621 ,753.2 ( First Reprint JANUARY 1997 1 iS : 7727 - 1975

Indian Standard

LIMITS OF SIZES FOR IS0 METRIC

TRAPEZOIDAL BOLT THREADS (DIAMETER RANGE 105 TO 300 mm)

1. Scope - Specifies the limits of sizes for IS0 metric trapezoidal bolt threads in the diameter range 105 to

300 mm.

2. Dimensions - As given in Table 1, read with Fig. 1.

FIG. 1 EXTERNAL THREADS WITH TOLERANCE POSITION h FOR MAJOR AND MINOR DIAMETER AND TOLERANCE POSITION e AND c

FOR PITCH DIAMETER

Adopted 13 May 1975 0 October 1975, BIS Gr6

BUREAU OF INDIAN STANDARDS

MANAK BHAVAN. 9 BAHADUR SHAH ZAFAR MARG

NEW DELHI Ii0002

IS : 7727 - 1975

TABLE 1 LIMITS OF SIZES FOR IS0 METRIC TRAPEZOIDAL BOLT THREADS (DIAMETER RANGE 105 TO 300 mm)

(Clause 2)

All dimensions in millimetres.

lominal Pitch Major Diameter Pitch Diameter Minor Diameter rhread P iameter

d Tolerance Max Min Tolerance Max Min Max Min

I Class Class _I

7e 102.905 102.590 100~011

4 4h 105 000 104.700 80 102 905 102.505 99.905 8c 102-810 102,410 100~500 99.810 9c 102-810 102.310 99.685

7e 98830 98.330 91.215 105 12 4h 105~000 104.400 8e 98.830 98,200 92,000 91.053

8c 98665 98.035 90.878 9c 98.665 97.865 90,665

94.788 94,188 82.038

20 4h 105~000 104.150 ;: 94.788 94.038 81,850

:c, 94,575 94.575 93.825 93,625

83.000

81.637 81.387

7e 107,905 107,590 105~011

4 4h 110~000 109.700 8e 107.905 107,505 105~500 104.905

8c 107.810 107.410 104,810 9c 107.810 107,310 104.685

7e 103 830 103.330 110 12 4h 110~000 109.400 8e 103 830 103~200 g:;g 8c 103 665 103.035

97,000 95.878

9c 103 665 102.865 95.665 -~

7e 99-788 99188 87,038

20 4h 110~000 109.850 8e 99

788 99.038 85000 86-850

8c 99.575 98.825 86,637 9c 99 575 98.625 86,387

_.__-

6 4h 7e Ill.882 III.507 107,413

115~000 114.625 8e Ill.882 Ill.407 108-000 107.288

8c 11 I.764 Ill.289 107~170 9c 111 764 III.164 107.014

.(‘

7E 107,820 107.290 98.157

115 14 4h 115~000 114,330 ,1%- 107.150 97.982 ^ yE5 106.975 99.000 97,807 9c 106.795 97,582

7e 103.776 103.146 89.989 89.776 22 4h 115~000 114~100 8e

103.776 102,976 8c 103.550 102.750 91.000 89,550 9c 103,550 102.550 89.300

7e 116.882 116.507 112.413

6 4h 120~000 119625 8e 116.882 116.407 112,288

8c 116.764 9c 116.764 :;6"::g

113~000 112.170 112.014

I 7e 112,820 112.290 103.157

120 14 4h 120~000 119,330 8e 112.820 112,150 102.982 8c 112.645 Ill.975 104~000 102.807 9c 112,645 Ill.795 102.582

-

7e 108.776 94.989

22 4h 120~000 119~100 :: 108.776 :EKS . 96,000 94,776 108.550 107.750 94.550

I 9c 108.550 107,550 94.300

- . (Continuer7 1

,;; _I 2

i

IS : 7727 - 1975

TABLE 1 LIMITS OF SIZES FOR IS0 METRIC TRAPEZOIDAL BOLT THREADS (DIAMETER RANGE 105 TO 300 mm) - Contd


Nominal Thread 3iameter

d

Major Diameter Pitch Diameter Pitch P

Tolerance Class

Max Min

6 4h 125.000 124.625

125 14 4h 125.000 124.330

22 4h 124,100

6 4h 129,625

130

135

140

14 4h 129.330

22 4h 129.100

6 4h 134.625

.< ’

14 4h 134.330

24 4h

125~000

130~000

130000

130~000

135.000

135.000

135.000

140-000

140~000

140-000

134.050

6 4h 139.625

14 4h

24 4h

139.330

139.050

Minor Diameter

Max Min

118~000

117.413 117.288 117.170 117,014

109-000

108.157 107.982 107.807 107.582

101-000

99.989 99.776 99,550 99.300

123.000

122.413 122.288 122-170 122.014

114~000

113.157 112,982 112.307 112.582

106.000

104.989 104.776 104.550 104.300

128.000

127.413 127.288 127.170 127.014

119.000

109~000

133.000

124.000

114~000

118.157 117.982 117,807 117.582

107,926 107.701 107,462 107.200

132.413 132.288 132,170 132.014

123.157 122.982 122.807 122,582

112.926 112.701 112.462 112.200

Tolerance Class

Max Min

7e

i: 9c

121.882 121.507 121,882 121,407 121.764 121.289 121.764 121,164

7e 117,820 117.290 8e 117,820 117,150 8c 117.645 116.975 9c 117.645 116.795

7e 113.776 113.146 8e 113.776 112.976 8c 113.550 112.750 9c 113.550 112,550

126,882 126,507 126.882 126.407 126,764 126-289 126,764 126.164

7e 8e

:,c 7e 122,820 122,290 8e 122.820 122,150 8c 122.645 121.975 9c 122,645 121.795

7e 118.776 118,146 8e 118.776 117.976 8c 118.550 117.750 9c 118.550 117.550

7e 131.882 131.507 8e 131.882 131.407 8c 131.764 131.289 9c 131.764 131.164

7e 127.820 127.290 8e . 127.820 127.150 8c 127'645 126.975 9c 127.645 126.795

7e 122.764 122,094 8e 122.764 121.914 8c 122.525 121,675 9c 122.525 121,465

7e 136.882 136,507 8e 136.882 136.407 8c 136.764 136,289 9c 136.764 136.164

7e 132,820 132,290 8e 132.820 132,150 8c 132.645 131.975 9c 132,645 131.795

7e 127.764 127,094 8e 127.764 126.914 8c 127,525 126.675 9c 127,525 126.465

( Continued

3

IS : 7727-1975



Nominal Pitch Major Diameter Pitch Diameter Thread

Minor Diameter P

Xameter d

Tolerance Max Min Tolerance Max Min Max Min Class Class

7e 141.882 141.507 137,413 6 4h 145.000 144,625 :: 141.882 141.407 138,000 137.288

141.764 141,289 137.170 9c 141,764 141,164 137.014

137,820 137.290 128.157 145 14 4h 145.000 144.330 2 137.820 137,130 127.982

, 8c 137,645 136.975 129.000 127.807 9c 137.645 136.795 127.582

;: 132.764 132.094 117.926

24 4h 145.000 144.050 132.764 131,914

E 132.525 132.525 131.465 131.675 119000

117.701

117.462 117.200

I I I I I l--l I I--- 7e 141.810 141.250 131.110

150 16 4h 150~000 149.290 8e 141.810 141.100 130,922 ,": 141.625 141,625 140,915 140,725 I 132,000 130.500 131.037

137.764 137.094 122.926 24 4h 150~000 149.050 :: 137.764 136.914 122.701

F+: 137.525 137.525 136.675 136.465 124.000 122.200 122.462

------I I I I I-...-__1 I ---.._I 151.882 151.507 147,413

6 4h 155.000 154,625 :: 151,882 151.407 147.288 8c 151.764 151.289 148,000 147.170 9c 151.764 151,164 147.014

146.810 146.250 136.110 155 16 4h

155~000 154.290 146.810

','Tw625 146.100

137,000 135,922

:,c 146,625 145.725 145.915 136,037 135.500

I I I I I I 1 ( I

142,764 142,094 127.926 24 4h 155.000 154,050 z," 142,764 141.914 127,701

:: 142.525 142.525 141.465 141.675. 129.000 127.200 127.462

----I , I I ‘-1 I I I

156,882 156,507 152.41 6 4h 160.000 159.625 :: 156,882 156,407 152.28 x

8c 156.764 156.289 153.000

152.170 9c 156.764 156.164 152.014

151,810 151.250 141.110 160 16 4h 160.000

159.290 z," 151.810 151.100

142,000 140,922

8c 151,625 150.915 141.037 9c 151,625 150,725 140~500

I I I I I I I I I 1

7e 145.750 145.040 128.862 28 4h 160~000 158.940 Ef 145.750 144,850 13O~OOO 128.625

145.500 144.600 128,375 9c 145.500 144.380 128.100

I I I

( Continued )

4

IS :7727 -1975



Nominal Thread Iiameter

d

165 16

170 16

175 16 4h 175.000

180 18 4h 180.000

Pitch P

6 4h ’ 165,000

28 1 1 165,000 4h

6 4h 170~000 169.625

I Major Diameter Pitch Diameter I

Minor Diameter

Tolerance I

Max Min Tolerance Max I Min 1 Max ) Min Class Class

I I

1 I 4h I I 165GOO

I I I I

4h I I 170~000 28

8 4h 175.000

28 4h 175.000

8 4h 180.000

28 4h 180.000

4h 170~000

~-

7e

164.625 8e 8c 9c

I

164.290 2 8c 9c

163.940

7e 150,750 150.040 133.862 8e 150.750 149.850 133.625 8c 150.500 149.600

135.000 133.375 9c 150.500 149,380 133.100

I

7e

ii!: 9c

I

169.290

7e

:: 9c

168.940 2 ;:

I

7e 8e

E

7e

:: 9c

7e

:: 9c

4 79.200 51 9c

I

178.940 5: E

1-1 I

161,882 161.507 157,413 161,882 161.407 158,000

157.288 161.764 161.289 157.170 161.764 161.164 157.014

I I-------I- 156.810 156,250 146.110 156,810 156.100 147.000

145.922 156,625 155.915 146.037 156.625 155.725 145.500

166.882 166.507 162.413 166,882 166.407 163.000

162.288 166,764 166.289 162.170 166,764 166.164 162,014

161.810 161.250 151.110 161.810 161.100 152.000

150,922 161.625 160.915 151.037 161.625 160.725 150.500

I I I

155.750 138.862 155.750 138,625 155.500 154.600 140~000 138.375 155,500 154.380 138,100

I I I

170.868 '170,443 165.337 170.868 170.338 165,205 170.735 170.205 166.000 165,072 170.735 170,065 164.897

I I

166.810 166.250 156.110 * 1.66w 0 166.100 155.922 '166.625 165.915 157.000 156,037 166.625 159.380 155'500

I I I I

: ;o”::g 159.850 160.040 145,000

143.862 143.625 160.500 159.600 143,375 160.500 159.380 143,100

I I I I

175.868 175.443 170.337 175.868 175,338 170,205 175.735 175.205 171~000 170.072 175.735 175.065 169.897

I I I

170.800 170.200 159,050 170.800 170.050 160.000

158.862 170.600 169.850 158,662 170.600 169.650 158.412

I I I

165.750 165.040 148.862 165.750 164,850 148.625 165.500 164.600 150~000 148.375 165.500 164.380 148.100

5

IS :7727-1975



-

I -

I -

! Pitch Diameter Uominal Thread biameter

d

Major Diameter Minor Diameter Pitch P

rolerancf Class

8

Max Min

4h 185,000 184.550

185 18 4h 185.000 184.200

32 4h 185.000 183.880

8 4h 190~000 189,550

190 18 4h i 90,000 189.200

32 4h 188,880

8 4h 194.550

195 18

--

--

__

--

.-

_-

_-

- -

. -

4h

190~000

195~000

195,000

195.000

200~000

200~5)OO

200~000

194.200

32 4h I 93.880

8 4h 199.550

200 18 4h 199,200

32 4h 198.880

-7

Min

175.305 175.168 175.035 174.847

164.013 163.800 163.600 163.350

-

_-

-_

_-

_ -

--

- -

_ -

-.-

-

_ -

. -

_-

-7

149.735 149.485 149.220 148.908

180.305 180.168 180.035 179.847

169.013 168.800

; g:gg

154.735 154.485 154.220 153.908

185,305 185.168

; t;:g;

174,013 173,800 173.600 173.350

159.735 159.485 159.220 158.908

190.305 190.168 190.035 189.847

179.013 178.800 178.600 178.350

164,735 164,485 164.220 163.908

Continued

-0lerance Cl&s

Max -

- _

-,.

-_

- _

-_

-_

Min

7e 180.868 8e 180.868 8c 180.735 9c 180.735

180.418 180.308 180,175 180,025

2 8c 9c

175.800 175.800 175.600 175.600

175.170 175.000 174.800 174.600

7e 168.735 8e 168.735 8c 168,470 9c 168.470

167,935 167.735 167.470 167.220

2 8c 9c

185.868 185.868 185.735 185,735

185.418 185.308 185.175 185.025

7e

E 9c

: g:;;;

180.600 180.600

180.170 180.000 179.800 179,600

7e 173.735 172.935 8e 173.735 172.735 8c 173.470 172.470 9c 173.470 172.220

7e 190.868 190.418 8e 190,868 190.308 8c 190.735 190.175 9c 190,735 190.025

7e

Zk- 9‘c

185,800 185.800 f 85,600 185.600

185,170 185.000 184.800 184,600

7e

E 9c

178,735 178.735 178.470 178.470

177,935 177,735 177.470 177.220

7e 195.868 8e 195.868 8c 195,735 9c 195.735

195.418 195.308 195.175 195.025

7e 8e

::

190,800 190,800 190.600 190,600

-

_

_

_

+ _

190.170 190~000 189,800 189,600

183,735 182,935 183,735 182.735 183.470 182.470 183.470 182.220

Max

176.000

165.000

151~000

181.000

170~000

156.000

186.000

175,000

161.000

191.000

180 000

166,000

7e 8e

2

6 -

IS : 7727 - 1975



.- Nominal Pitch Major Diameter Pitch Diameter Thread P

Minor Diameter

Diameter d

Tolerance Max Min Tolerance Max Min Max Class

Min Class

205.868 200.305 8 411 210~000 209,550 :: 205.868 fgg); 201~000 200,168

!: 205,735 205.735 205.175 205.025 200.035 199.847

:I

199,788 199,118 186.950

210 20 4h 210~000 209.150 199,788 199.938 8c 199,575 198,725 188~000 : g:;:;

9c 199.575 198.515 186.250

7e 191.720 190,870 170.657 36 4h 210~000 208.750 8e 191.720 190,660 172.000 170.395

E 191.440 191,440 190.120 190.380 169.790 170.115

7e 215.868 215,418 210.305 8 4h 220.000 219.550 8e 215.868 210.168

:: 215.735 215.735

;: ;:;g 211~000

215.025 210.035 209.847

7e 209.788 209.118 196,950 220 20 4h 220.000 219.150 8e 209.788 208.938 196.725

:: 209,575 209.575 208.515 208.725

198,000

196.512 196.250

201,720 200.870 180.657 36 4h 220.000 218,750 ;: 201.720 200,660 180,395

:: 201.440 201.440 200.380 200.120

182.000

180.115 179.790

7e 225.868 225.418 220.305 8 4h 230.000 229,550 E 225,868 225.308 220,168

225.735 225.175 221.000

220.035 9c 225.735 225.025 219.847

;: 219.788

$;gJ;; 206.950

230 20 4h 230.000 229.150 206.725 8c

:+%;:8" 218.725

208.000 206.512

9c 219,575 218.515 206.250

7e 211.720 210.870 190.657 36 4h 230,000 228,750 8e 211,720 210.660 190.395

& 211.440 211.440 210.380 210~120

192.000

190.115 189.790

235.865 235,418 230.305 8 4h 240.000 239,550 :: 235.863 235,308 230.168

8c 235.735 9c 235.735

;g:;;g 232.000

230.035 229.847

228.776 228.106 214.938 240 22 4h 240.000 239.100 il 228.776

228.550 E3'%

2271490

216.000 214.713 214.487

9c 228.550 214.225

7e 221.720 220.870 200.657 36 4h 240.000 238.750 :: 221.720 200.395

221.440 Z'%

2201120

202~000 200.115

9c 221.440 199.790

I P^_.:_....rl\

7

IS : 7727 -1975

TABLE 1 LIMITS OF SIZES FOR ISO METRIC TRAPEZOIDAL BOLT THREADS (DIAMETER RANGE 105 TO 300 mm) -Contd


-

I -

I -

i Pitch Diameter Minor Diameter Major Diameter ;o,~ei$l

liameter d

250

Pitch P

rolerance Class

12 4h

22 4h

40 4h

12 4h

260 22 4h

40 4h

12 4h

270 24 4h

40 4h

12 4h

280 24 4h

40 4h

-

.-

-

.-

_-

-_

- _

_-

- L

_ -

--

--

--

-

Min

236.177 236.002 235,827 235.790

-

--

-

_-

--

_ -

--

--

_ -

_-

- -

- -

-_

-

224,938 224,713 224.487 224.225

206.637 206,375 206.075 205,750

246,177 246.002 245 827 245,602

234.938 234.713 234,487 234.225

216,637 216,375 216.075 215.750

256.177 256,002 255.827 255.602

242,876 242,639 242.400 242.125

226.637 226.375 226,075 225.750

266,177 266.002 265,827 265,602

252.876 252,639 252.400 252.125

236.637

fgg

235.750

(Continuec

-

.-

-

-

-

-

. -

. -

- -

-_

_ _

-_

- .

-

Max Min Min

249.400

249.100

248,680

259.400

259,100

258,680

269,400

269,050

268.680

279,400

279.050

278,600

Max

250.000

250 000

250.000

260.000

260,000

260,000

270.000

270.000

270,000

290~000

280,000

280.000

-0lerance Class

;: 8c 9c

243.830 243,830 243.665 243.665

7e 238,776 8e 238.776 8c 238.550 9c 238.550

7e

:: 9c

229.700 229,700 229,400 229.400

7e 8e

::

253,830 253.830 253.665 253.665

248,776 248.776 248.550 248.550

:: 8c 9c

239.700 239,700 239.400 239.400

Max

237.000

226,000

208.000

247.000

236.000

218.000

257 000

244.000

228,000

267.000

254.000

238.000

243,300 243,160 242.995 242.815

238.106 237.926 237,700 237.490

228,850 228,640 228,340 228.080

253.300 253,160 252.995 252,815

248.106 247.926 247,700 247.490

238.850 238,640 238.340 238.080

263.830 263.830 263.665 263,665

263.300 263.160 262.995 262.815

257,764 257.764

‘257.525 257.525

;;;:g 256.625 256.405

7e

t: 9c

249.700 249.700 249.400 249.400

248.850 248.640 248.340 248.080

7e

2 9c

273.830 273.830 273.665 273.665

273,300 273.160 272.995 272.815

267.764 267.764 267-525 267.525

259.700 259.700 259.400 259.400

267.054 266.864 266.625 266.405

258.850 258.640 258.340 258,080

8

IS : 7727 - 1975

TABLE 1 LIMITS OF SIZES FOR IS0 METRIC TRAPEZOIDAL BOLT THREADS (DIAMETER RANGE 105 TO 300 mm) -Con&


Nominal Pitch Major Diameter Pitch Diameter Thread P

Minor Diameter

Iiameter d

Tolerance Max Min Tolerance Max Class

Min Max Min Class

7e 283,830 283.300 276,177

12 411 290.000 289,400 E 283.830 283.160 283,665 282.995 277.000 ;;;:;;;

9c 283.665 282.87 5 275,602

7e 277,764 277.054 262,876 290 24 4h 290~000 289.050 80 277.764 276.864 262.639

8c 277525 276-625 264,000

262.400 9c 277.525 276.405 262,125

7e 267.685 266.785 242,560 44 4h 290~000 288.600 8e 267.685 266.565 242.285

8c 267.370 266.250 244.000

241.970 9c 267.370 265.970 241 ,620

7e 293.830 293,300 286.177 12 4h 300~000 299.400 8e 293.830 293,160 286.002

8c 293.665 292.995 287.000 285.827 9c 293,665 292.815 285,602

--

79 287.764 287.054 272.876 300 24 4h 300~000 299.050 8e 287.764 286.864

t?C 237.525 286,625 274.000 272.639 272.400

9c 287.525 286.405 272,125 -_

7e 277.685 276.785 252.560 44 4h 300~000 298-600 8e 277.685 276,565 252.285

8c 277.370 276,250 254.000 251.970 9c 277.370 275,970 251.620

EXPLANATORY._N_QTE

This standard is based on DIN 103 Blatt 7 (October 1972) Metrisches lSO-Trapezaewinde Gronz- mage fur Bolzengewinde Von 103 bis 300 mm Nenndurchmesser (IS0 metric trapezoidal-external screw threads from 105 to 300 inn-r diameter; limits of sizes) issued by Dautscher Normenausschuss. T!ris standard is one of a series of standards being prepared cn IS0 metric trapezoidal screw threadsThe other standards of the series are:

IS : 7008 (Part I)-1973 ISO metric trapezoidal screw threads: Part I Basic and design profiles

IS : 7008 (Part Ii)-1 973 IS0 metric trapezoidal screw threads: Part II Pitch diameter combinations

IS : 7008 (Part I I I) -1973 IS0 metric trapezoidal screw threads : Part I I I Basic dimensions for design profiles

IS : 7684-

IS : 7726-

IS : 7685-

IS : 7008 (Part IV)-1973 IS0 metric trapezoidal screw threads: Part IV Tolerancing system

1975 Limits of sizes for IS0 metric trapezoidal nut threads (diameter range 8 to 100 mm)

1975 Limits of sizes for IS0 metric trapezoidal nut threads (diameter range 105 to 300 mm)

1975 Limits of sizes for IS0 metric trapezoidal bolt threads (diameter range 8 to 100 mm)

Printed at New India Printing Press, Khurja, India

9

AMENDMENT NO. 1 JULY 2004TO

IS 7727:1975 LIMITS OF SIZES FORISO METRIC TRAPEZOIDAL BOLT THREADS

(DIAMETER RANGE 105 TO 300 mm)

( Page 9, Exp/anaby Note ) — Substitute the following for theexisting:

‘EXPLANATORY NOTE

This standard is based on DIN 103 Blatt 8 (October 1972) MetrischesISO – Trapezgewinde Grenzmasse fur Bolzengewinde Von 105 bis 300mm Nenndurchmesser (ISO metric trapezoidal threads – Limits of sizesfor external screw threads from 105 to 300 mm nominal diameter; limitsof sizes, issued by Deutscher Normenausschuss (DNA). This standard isone of a series of Indian Standards on ISO metric trapezoidal screwthreads. The other standards published so far in the series are:

IS 7008 (Part 1):1999/ISO 2901:1993

IS 7008 (Parf 2):1 988/ISO 2902:1977

IS 7008 (Part 3):”ISO 2904:1977

IS 7008 (Part 4):’ISO 2903:1993

IS 7684:1975

IS 7685:1975

IS 7726:1975

(BP20)

988/

999/

ISO metric trapezoidal screw threads : Part 1Basic profile and maximum material profile(second revision)

ISO metric trapezoidal screw threads : Part 2Pitch diameter combinations (first revision)

ISO metric trapezoidal screw threads : Part 3Basic dimensions (first revision)

ISO metric trapezoidal screw threads : Part 4Tolerances (second revision)

Limits of sizes for ISO metric trapezoidal nutthreads (diameter range 8 to 100 mm)

Limits of sizes for ISO metric trapezoidal boltthreads (diameter range 8 to 100 mm)

Limits of sizes for ISO metric trapezoidal nutthreacfs (diameter range 105 to 30CImm)’

Reprography Unit, BIS, New Delhi, India

is.7727.1975 (1)

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