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- A light rounding of the edges at the periphery of the head shall be permissible provided the diameter of the bearing circle is equal to no less than 90 percent of the specified minimum head diameter.
- Where specifying nominal size in decimals, zeros preceding the decimal and in the fourth decimal place shall be omitted.
- Formulas for head dimensions are given in Appendix.
Unit of Measure
Specifications
Product |
N/A Slotted Cap Screws |
Unit of Measure |
N/A English |
Nominal Size or Basic Screw Dia. |
N/A 1/4 in |
| Nominal Size or Basic Screw Dia. (Decimal)1 | N/A 0.2500 in |
Max. Body Dia. (E) |
N/A 0.2500 in |
Min. Body Dia. (E) |
N/A 0.2450 in |
Max. Head Dia. (A) |
N/A 0.375 in |
Min. Head Dia. (A) |
N/A 0.363 in |
Max. Head Side Height (H) |
N/A 0.172 in |
Min. Head Side Height (H) |
N/A 0.157 in |
Max. Total Head Height (O) |
N/A 0.216 in |
Min. Total Head Height (O) |
N/A 0.194 in |
Max. Slot Width (J) |
N/A 0.075 in |
Min. Slot Width (J) |
N/A 0.064 in |
Max. Slot Depth (T) |
N/A 0.097 in |
Min. Slot Depth (T) |
N/A 0.077 in |
Max. Fillet Radius (U) |
N/A 0.031 in |
Min. Fillet Radius (U) |
N/A 0.016 in |
- 1 Where specifying nominal size in decimals, zeros preceding and in the fourth decimal, place shall be omitted.
