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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 5/16 in |
| Nominal Size or Basic Screw Dia. (Decimal)1 | N/A 0.3125 in |
Max. Body Dia. (E) |
N/A 0.3125 in |
Min. Body Dia. (E) |
N/A 0.3070 in |
Max. Head Dia. (A) |
N/A 0.437 in |
Min. Head Dia. (A) |
N/A 0.424 in |
Max. Head Side Height (H) |
N/A 0.203 in |
Min. Head Side Height (H) |
N/A 0.186 in |
Max. Total Head Height (O) |
N/A 0.253 in |
Min. Total Head Height (O) |
N/A 0.230 in |
Max. Slot Width (J) |
N/A 0.084 in |
Min. Slot Width (J) |
N/A 0.072 in |
Max. Slot Depth (T) |
N/A 0.115 in |
Min. Slot Depth (T) |
N/A 0.090 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.
