Square Recessed Countersunk Head Screws (ASTM F837, F468)
ASME B 18.6.3 (H1B-III+T1A) - 2024 四方槽沉头螺钉 (ASTM F837, F468)
See all versions and complete specifications: Square Recessed Countersunk Head 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2# | 0.0990 | 80° | 82° | 0.059 | 0.070 | 28 | 0.187 | 0.028 | 0 | 0.167 | 0.038 |
| 3# | 0.1250 | 80° | 82° | 0.075 | 0.091 | 20 | 0.237 | 0.040 | 1S | 0.215 | 0.055 |
| 4# | 0.1510 | 80° | 82° | 0.091 | 0.091 | 19 | 0.287 | 0.050 | 1R | 0.262 | 0.065 |
| 5# | 0.1900 | 80° | 82° | 0.116 | 0.112 |
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| 16 |
| 0.362 |
| 0.060 |
| 2R |
| 0.333 |
| 0.075 |
| 6# | 0.2500 | 80° | 82° | 0.153 | 0.133 | 14 | 0.477 | 0.080 | 3R | 0.442 | 0.095 |
| 7# | 0.3750 | 80° | 82° | 0.230 | 0.191 | 12 | 0.717 | 0.085 | 4R | 0.670 | 0.100 |
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