Slotted Undercut 82-deg Flat Countersunk Head Machine Screws (ASTM F837 / F468)
ASME B 18.6.3 (T9) - 2013 开槽82°沉头清根机械螺钉 [ Table 9 ] (ASTM F837 / F468)
See all versions and complete specifications: Slotted Undercut 82-deg Flat Countersunk Head Machine Screws (ASTM F837 / F468) — Full Specification Page
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 0# | 0.0730 | 0.026 | / | 0.120 | 0.031 | 64 | 1/8 | / | / | 0.137 | 0.023 |
| 1# | 0.0990 | 0.035 | 0.148 | 0.167 | 0.042 | 48 | 1/8 | 0.031 | 0.018 | 0.187 | 0.033 |
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| 2# | 0.1250 | 0.043 | 0.196 | 0.215 | 0.053 | 40 | 3/16 | 0.034 | 0.020 | 0.237 | 0.043 |
| 3# | 0.1640 | 0.054 | 0.267 | 0.285 | 0.070 | 32 | 1/4 | 0.039 | 0.023 | 0.312 | 0.058 |
| 4# | 0.2160 | 0.067 | 0.362 | 0.380 | 0.092 | 24 | 3/8 | 0.045 | 0.027 | 0.412 | 0.078 |
| 5# | 0.3125 | 0.084 | 0.539 | 0.556 | 0.134 | 18 | 1/2 | 0.057 | 0.034 | 0.597 | 0.116 |
| 6# | 0.4375 | 0.094 | 0.690 | 0.715 | 0.156 | 14 | 5/8 | 0.073 | 0.044 | 0.760 | 0.133 |
| 8# | 0.5000 | 0.106 | 0.739 | 0.765 | 0.156 | 13 | 3/4 | 0.081 | 0.049 | 0.815 | 0.130 |
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