• Where specifying nominal size in decimals, zeros preceding decimal and in the fourth decimal place shall be omitted.
  • Applicable to screw types as indicated by code symbols.
    Type AB thread forming.
    Types B and BP thread forming and Types BF and BT thread cutting.
    Type C thread forming, Appendix; and Types D, F, G, and T thread cutting.
  • A slight rounding of the edges at periphery of head shall be permissible, provided the diameter of the bearing circle is equal to no less than 90% of the specified minimum head diameter.
  • Head dimensions not shown are the same as slotted heads.
  • Screw sizes No. 0 and No 1 are impractical to gage.
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Unit of Measure
Items
Cross Recessed Fillister Head Tapping Screws - Type I

Type I Cross Recessed Fillister Head Tapping Screw, 0.0600" Nominal Dia.
Cross Recessed Fillister Head Tapping Screws - Type I

Type I Cross Recessed Fillister Head Tapping Screw, 0.0730" Nominal Dia.
Cross Recessed Fillister Head Tapping Screws - Type I

Type I Cross Recessed Fillister Head Tapping Screw, 0.0860" Nominal Dia.
Cross Recessed Fillister Head Tapping Screws - Type I

Type I Cross Recessed Fillister Head Tapping Screw, 0.0990" Nominal Dia.
Cross Recessed Fillister Head Tapping Screws - Type I

Type I Cross Recessed Fillister Head Tapping Screw, 0.1120" Nominal Dia.
Manufacturer N/A Industrial Fasteners Institute
Product N/A Tapping Screws
Codes and Standards N/A Abstract of ASME B18.6.4 1998
Unit of Measure N/A English
Type N/A Type I
Nominal Size or Basic Screw Dia. N/A No. 0 N/A No. 1 N/A No. 2 N/A No. 3 N/A No. 4
Nominal Size or Basic Screw Dia. (Decimal) N/A 0.0600 in N/A 0.0730 in N/A 0.0860 in N/A 0.0990 in N/A 0.1120 in
Applicable to Screw Types1 N/A 1
2
3
N/A 1
2
3
N/A 1
2
3
4
N/A 1
2
3
4
N/A 1
2
3
4
Ref. Recess Dia. (M) N/A 0.060 in N/A 0.068 in N/A 0.098 in N/A 0.106 in N/A 0.116 in
Ref. Recess Depth (T) N/A 0.030 in N/A 0.035 in N/A 0.050 in N/A 0.055 in N/A 0.069 in
Ref. Recess Width (N) N/A 0.013 in N/A 0.014 in N/A 0.017 in N/A 0.019 in N/A 0.019 in
Driver Size N/A 0 N/A 0 N/A 1 N/A 1 N/A 1
Max. Recess Penetration Gaging Depth N/A 0.032 in N/A 0.040 in N/A 0.052 in N/A 0.061 in N/A 0.071 in
Min. Recess Penetration Gaging Depth N/A 0.014 in N/A 0.022 in N/A 0.034 in N/A 0.043 in N/A 0.053 in
  • 1 1 = Circle, 2 = Diamond, 3 = Triangle, 4 = Square
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