A swivel forerunner is used in combination with an anchor 'D' end shackle and Kenter joining shackle and is a common construction aboard many vessels. The swivel forerunner is used to establish a connection between the anchor and the length of the chain cable or for connection in the chain locker.
Dimensions are not binding and may vary.
Nominal Specification (d) | d₆ | l₆ | W6 | d₇ | d₈ | d₉ | a3 | C | m1 |
Weight(kg) |
11 | 13 | 107 | 52 | 12 | 15 | 37 | 19 | 37 | 22 | 0.83 |
12.5 | 15 | 121 | 59 | 14 | 18 | 43 | 22 | 42 | 25 | 0.94 |
14 | 17 | 136 | 66 | 15 | 20 | 48 | 25 | 47 | 28 | 1.05 |
16 | 19 | 155 | 75 | 18 | 22 | 54 | 28 | 54 | 32 | 1.34 |
17.5 | 21 | 170 | 82 | 19 | 25 | 60 | 31 | 59 | 35 | 1.73 |
19 | 23 | 184 | 89 | 21 | 27 | 65 | 33 | 64 | 38 | 2.17 |
20.5 | 25 | 199 | 96 | 23 | 29 | 70 | 36 | 69 | 41 | 2.20 |
22 | 26 | 213 | 103 | 24 | 31 | 75 | 39 | 74 | 44 | 3.50 |
24 | 29 | 233 | 113 | 26 | 34 | 82 | 42 | 80 | 48 | 4.53 |
26 | 31 | 252 | 122 | 29 | 36 | 88 | 46 | 87 | 52 | 5.79 |
28 | 34 | 272 | 132 | 31 | 39 | 95 | 49 | 94 | 56 | 7.25 |
30 | 36 | 291 | 141 | 33 | 42 | 102 | 53 | 101 | 60 | 9.00 |
32 | 38 | 310 | 150 | 35 | 45 | 109 | 56 | 107 | 64 | 10.03 |
34 | 41 | 330 | 160 | 37 | 48 | 116 | 60 | 114 | 68 | 12.75 |
36 | 43 | 349 | 169 | 40 | 50 | 122 | 63 | 121 | 72 | 14.96 |
38 | 46 | 369 | 179 | 42 | 53 | 129 | 67 | 127 | 76 | 17.44 |
40 | 48 | 388 | 188 | 44 | 56 | 136 | 70 | 134 | 80 | 20.25 |
42 | 50 | 407 | 197 | 46 | 59 | 143 | 74 | 141 | 84 | 25.40 |
44 | 53 | 427 | 207 | 48 | 62 | 150 | 77 | 147 | 88 | 26.60 |
46 | 55 | 446 | 216 | 51 | 64 | 156 | 81 | 154 | 92 | 30.67 |
48 | 58 | 466 | 226 | 53 | 67 | 163 | 84 | 161 | 96 | 35.00 |
50 | 60 | 485 | 235 | 55 | 70 | 170 | 88 | 168 | 100 | 40.50 |
52 | 62 | 504 | 244 | 57 | 73 | 177 | 91 | 174 | 104 | 49.50 |
54 | 65 | 524 | 254 | 59 | 76 | 184 | 95 | 181 | 108 | 50.50 |
56 | 67 | 543 | 263 | 62 | 78 | 190 | 98 | 188 | 112 | 55.00 |
58 | 70 | 563 | 273 | 64 | 81 | 197 | 102 | 194 | 116 | 64.60 |
60 | 72 | 582 | 282 | 66 | 84 | 204 | 105 | 201 | 120 | 71.30 |
62 | 74 | 601 | 291 | 68 | 87 | 211 | 109 | 208 | 124 | 77.70 |
64 | 77 | 621 | 301 | 70 | 90 | 218 | 112 | 214 | 128 | 83.30 |
66 | 79 | 640 | 310 | 73 | 92 | 224 | 116 | 221 | 132 | 88.70 |
68 | 82 | 660 | 320 | 75 | 95 | 231 | 119 | 228 | 136 | 100.00 |
70 | 84 | 679 | 329 | 77 | 98 | 236 | 123 | 235 | 140 | 107.80 |
73 | 88 | 708 | 343 | 80 | 102 | 248 | 128 | 245 | 146 | 125.60 |
76 | 91 | 737 | 357 | 84 | 106 | 258 | 133 | 255 | 152 | 143.80 |
78 | 94 | 757 | 367 | 86 | 109 | 265 | 137 | 261 | 156 | 154.00 |
81 | 97 | 786 | 381 | 89 | 113 | 275 | 142 | 271 | 162 | 188.00 |
84 | 101 | 815 | 395 | 92 | 118 | 286 | 147 | 281 | 168 | 198.00 |
87 | 104 | 844 | 409 | 96 | 122 | 296 | 152 | 291 | 174 | 215.00 |
90 | 108 | 873 | 423 | 99 | 126 | 306 | 158 | 302 | 180 | 238.00 |
92 | 110 | 892 | 432 | 101 | 129 | 313 | 161 | 308 | 184 | 252.00 |
95 | 114 | 921 | 447 | 105 | 133 | 323 | 166 | 318 | 190 | 269.00 |
97 | 116 | 941 | 456 | 107 | 136 | 330 | 170 | 325 | 194 | 301.00 |
100 | 120 | 970 | 470 | 110 | 140 | 340 | 175 | 335 | 200 | 330.00 |
102 | 122 | 989 | 479 | 112 | 143 | 347 | 179 | 342 | 204 | 344.00 |
105 | 126 | 1018 | 494 | 116 | 147 | 357 | 184 | 352 | 210 | 387.00 |
107 | 128 | 1038 | 503 | 118 | 150 | 364 | 187 | 358 | 214 | 428.00 |
111 | 133 | 1077 | 522 | 122 | 155 | 377 | 194 | 372 | 222 | 448.00 |
114 | 137 | 1106 | 536 | 125 | 160 | 388 | 200 | 382 | 228 | 460.00 |
117 | 140 | 1135 | 550 | 129 | 164 | 398 | 205 | 392 | 234 | 475.00 |
120 | 144 | 1164 | 564 | 132 | 168 | 408 | 210 | 402 | 240 | 547.00 |
122 | 146 | 1183 | 573 | 134 | 171 | 415 | 214 | 409 | 244 | 649.00 |
124 | 149 | 1203 | 583 | 136 | 174 | 422 | 217 | 415 | 248 | 680.00 |
127 | 152 | 1232 | 597 | 140 | 178 | 432 | 222 | 425 | 254 | 729.00 |
130 | 156 | 1261 | 611 | 143 | 182 | 442 | 228 | 436 | 260 | 784.00 |
132 | 158 | 1280 | 620 | 145 | 185 | 449 | 231 | 442 | 264 | 820.00 |
137 | 164 | 1329 | 644 | 151 | 192 | 466 | 240 | 459 | 274 | 912.00 |
142 | 170 | 1377 | 667 | 156 | 199 | 483 | 249 | 476 | 284 | 1012.00 |
147 | 176 | 1426 | 691 | 162 | 206 | 500 | 257 | 492 | 294 | 1124.00 |
152 | 182 | 1474 | 714 | 167 | 213 | 517 | 266 | 509 | 304 | 1238.00 |
157 | 188 | 1523 | 738 | 173 | 220 | 534 | 275 | 526 | 314 | 1360.00 |
162 | 194 | 1571 | 761 | 178 | 227 | 551 | 284 | 543 | 324 | 1490.00 |