Spuare Head Screws with B.S.Threads [Table 1]
BS 916 - 1953 英制方头全螺纹螺钉 粗制 - 镦锻 [Table 1]
See all versions and complete specifications: Spuare Head Screws with B.S.Threads [Table 1] — Full Specification Page
| Size | P | k_max | k_min | s_max | s_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|
| 1/2 | 8 | 1/16 | 0.706 | 1.480 | 1.450 | 2.09 | 0.666 |
| 1/4 | 18 | 1/32 | 0.228 | 0.525 | 0.515 | 0.74 | 0.208 |
| 3/4 | 5 | 1/8 | 1.180 | 2.410 | 2.365 | 3.41 | 1.080 |
| 3/8 | 12 | 3/64 | 0.405 | 0.920 | 0.900 | 1.30 | 0.375 |
| 5/8 | 6 | 1/8 | 1.060 | 2.220 | 2.175 | 3.14 | 1.000 |
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| 5/16 | 14 | 1/32 | 0.312 | 0.710 | 0.695 | 1.00 | 0.292 |
| 7/16 | 10 | 3/64 | 0.530 | 1.200 | 1.175 | 1.70 | 0.500 |
| 9/16 | 7 | 1/8 | 0.890 | 1.860 | 1.815 | 2.63 | 0.830 |
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