Black Cup Aquare Neck Bolts
BS 325 - 1947 粗制半圆头方颈螺栓Table1
See all versions and complete specifications: Black Cup Aquare Neck Bolts — Full Specification Page
| Size | P | s_max | s_min | k_nominal |
|---|---|---|---|---|
| 1/2 | 8 | 2.25 | 0.562 | 0.75 |
| 1/4 | 18 | 0.703 | 0.156 | 0.234 |
| 3/8 | 11 | 1.406 | 0.375 | 0.469 |
| 5/16 | 14 | 0.984 | 0.25 | 0.328 |
| 7/16 | 9 | 1.969 | 0.5 | 0.656 |
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