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- No extrusion of excess metal beyond apex of the point resulting from thread rolling shall be permissible. A slight rounding or truncation of the point is desirable.
- The width of flat at crest of thread shall not exceed 0.004 in. for sizes up to and including No. 8, and 0.006 in. for larger sizes.
- Where specifying nominal size in decimals, zeros preceding decimal and in the fourth decimal place shall be omitted.
- Sizes shown in boldface type are preferred.
- For determining the effective grip length of Type AB screws.
Unit of Measure
Specifications
Product |
N/A Tapping Screws |
Unit of Measure |
N/A English |
Nominal Size or Basic Screw Dia. |
N/A No. 5 |
Nominal Size or Basic Screw Dia. (Decimal) |
N/A 0.1250 in |
Max. Major Dia. (D) |
N/A 0.130 in |
Min. Major Dia. (D) |
N/A 0.123 in |
Max. Minor Dia. (d) |
N/A 0.094 in |
Min. Minor Dia. (d) |
N/A 0.090 in |
Min. Practical Nominal Screw Lengths for 90º Heads (L) |
N/A 1/4 in |
Min. Practical Nominal Screw Lengths for Csk Heads (L) |
N/A 5/16 in |
