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Steel Designers Manual - TheBestFriend.org

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This material is copyright - all rights reserved. Reproduced under licence from The <strong>Steel</strong> Construction Institute on 12/2/2007<br />

To buy a hardcopy version of this document call 01344 872775 or go to http://shop.steelbiz.<strong>org</strong>/<br />

<strong>Steel</strong> <strong>Designers</strong>' <strong>Manual</strong> - 6th Edition (2003)<br />

Cross centres through flanges<br />

Bolt data 1241<br />

Flange Minimum Maximum S1 S2 S3 S4<br />

width for for (mm) (mm) (mm) (mm)<br />

(mm) accessibility edge dist.<br />

(mm) (mm)<br />

Joists<br />

44 27 (5) 30 30<br />

64 38 (10) 39 40<br />

76 48 (10) 51 48<br />

89 54 (12) 59 56<br />

102 60 (16) 62 60<br />

114 66 (16) 74 70<br />

127 72 (20) 77 75<br />

152 75 (20) 102 90<br />

203 91 (24) 143 140<br />

UCs<br />

152 65 (24) 92 90<br />

203 75 (24) 143 140<br />

254 87 (24) 194 140<br />

305 100 (24) 245 140 120 (24) 60 (24) 240 (24)<br />

368 88 (24) 308 140 140 (24) 75 (24) 290 (24)<br />

406 120 (24) 346 140 140 (24) 75 (24) 290 (24)<br />

UBs<br />

102 50 (16) 62 54<br />

127 62 (20) 77 70<br />

133 57 (20) 83 70<br />

140 69 (24) 80 70<br />

146 64 (24) 86 70<br />

152 73 (24) 92 90<br />

165 67 (24) 105 90<br />

171 72 (24) 111 90<br />

178 72 (24) 118 90<br />

191 74 (24) 131 90<br />

210 80 (24) 150 140<br />

229 80 (24) 169 140<br />

254 87 (24) 194 140<br />

267 91 (24) 207 140 90 (20) 50 (20) 190 (20)<br />

292 94 (24) 232 140 100 (24) 60 (24) 220 (24)<br />

305 100 (24) 245 140 120 (24) 60 (24) 240 (24)<br />

419 112 (24) 359 140 140 (24) 75 (24) 290 (24)<br />

Maximum bolt diameters for dimensions shown are given in brackets

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