• Applicable to screw types as indicated by code symbols.
    Type AB thread forming.
    Type A thread forming, except for short lengths.
    Types B and BP thread forming; and Types BF and BT thread cutting
    Type C thread forming; and Types D, F, G, and T thread cutting.
  • Head dimensions not shown are the same as those of slotted heads.
  • Where specifying nominal size in decimals, zeros preceding decimal and in the fourth decimal place shall be omitted.
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Item #

Description

Type

Nominal Size or Basic Screw Dia.

Ref. (M)

Ref. (T)

Ref. (N)

Driver Size

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N/A Type II Cross Recessed Oval Countersunk Head Tapping Screw, with 0.430" Recess Dia. N/A Type II N/A 1/2 in N/A 0.593 in N/A 0.358 in N/A 0.098 in N/A Point Same on all Drivers
N/A Type II Cross Recessed Oval Countersunk Head Tapping Screw, with 0.416" Recess Dia. N/A Type II N/A 7/16 in N/A 0.554 in N/A 0.332 in N/A 0.092 in N/A Point Same on all Drivers
N/A Type II Cross Recessed Oval Countersunk Head Tapping Screw, with 0.430" Recess Dia. N/A Type II N/A No. 24 N/A 0.515 in N/A 0.306 in N/A 0.086 in N/A Point Same on all Drivers
N/A Type II Cross Recessed Oval Countersunk Head Tapping Screw, with 0.404" Recess Dia. N/A Type II N/A 3/8 in N/A 0.509 in N/A 0.302 in N/A 0.086 in N/A Point Same on all Drivers
N/A Type IA Cross Recessed Oval Countersunk Head Tapping Screw, with 0.430" Recess Dia. N/A Type IA N/A 1/2 in N/A 0.430 in N/A 0.280 in N/A 0.086 in N/A 4
N/A Type IA Cross Recessed Oval Countersunk Head Tapping Screw, with 0.430" Recess Dia. N/A Type IA N/A No. 24 N/A 0.430 in N/A 0.279 in N/A 0.087 in N/A 4
N/A Type I Cross Recessed Oval Countersunk Head Tapping Screw, with 0.430" Recess Dia. N/A Type I N/A 1/2 in N/A 0.430 in N/A 0.271 in N/A 0.071 in N/A 4
N/A Type I Cross Recessed Oval Countersunk Head Tapping Screw, with 0.430" Recess Dia. N/A Type I N/A No. 24 N/A 0.430 in N/A 0.270 in N/A 0.072 in N/A 4
N/A Type IA Cross Recessed Oval Countersunk Head Tapping Screw, with 0.416" Recess Dia. N/A Type IA N/A 7/16 in N/A 0.416 in N/A 0.265 in N/A 0.086 in N/A 4
N/A Type II Cross Recessed Oval Countersunk Head Tapping Screw, with 0.394" Recess Dia. N/A Type II N/A No. 20 N/A 0.442 in N/A 0.258 in N/A 0.075 in N/A Point Same on all Drivers
N/A Type I Cross Recessed Oval Countersunk Head Tapping Screw, with 0.416" Recess Dia. N/A Type I N/A 7/16 in N/A 0.416 in N/A 0.257 in N/A 0.070 in N/A 4
N/A Type IA Cross Recessed Oval Countersunk Head Tapping Screw, with 0.404" Recess Dia. N/A Type IA N/A 3/8 in N/A 0.404 in N/A 0.253 in N/A 0.086 in N/A 4
N/A Type II Cross Recessed Oval Countersunk Head Tapping Screw, with 0.384" Recess Dia. N/A Type II N/A 5/16 in N/A 0.432 in N/A 0.252 in N/A 0.074 in N/A Point Same on all Drivers
N/A Type I Cross Recessed Oval Countersunk Head Tapping Screw, with 0.404" Recess Dia. N/A Type I N/A 3/8 in N/A 0.404 in N/A 0.245 in N/A 0.068 in N/A 4
N/A Type IA Cross Recessed Oval Countersunk Head Tapping Screw, with 0.394" Recess Dia. N/A Type IA N/A No. 20 N/A 0.394 in N/A 0.242 in N/A 0.086 in N/A 4
N/A Type II Cross Recessed Oval Countersunk Head Tapping Screw, with 0.374" Recess Dia. N/A Type II N/A No. 18 N/A 0.406 in N/A 0.235 in N/A 0.070 in N/A Point Same on all Drivers
N/A Type I Cross Recessed Oval Countersunk Head Tapping Screw, with 0.394" Recess Dia. N/A Type I N/A No. 20 N/A 0.394 in N/A 0.233 in N/A 0.066 in N/A 4
N/A Type IA Cross Recessed Oval Countersunk Head Tapping Screw, with 0.384" Recess Dia. N/A Type IA N/A 5/16 in N/A 0.384 in N/A 0.232 in N/A 0.086 in N/A 4
N/A Type I Cross Recessed Oval Countersunk Head Tapping Screw, with 0.384" Recess Dia. N/A Type I N/A 5/16 in N/A 0.384 in N/A 0.226 in N/A 0.065 in N/A 4
N/A Type IA Cross Recessed Oval Countersunk Head Tapping Screw, with 0.374" Recess Dia. N/A Type IA N/A No. 18 N/A 0.374 in N/A 0.223 in N/A 0.085 in N/A 4
N/A Type I Cross Recessed Oval Countersunk Head Tapping Screw, with 0.374" Recess Dia. N/A Type I N/A No. 18 N/A 0.374 in N/A 0.214 in N/A 0.064 in N/A 4
N/A Type II Cross Recessed Oval Countersunk Head Tapping Screw, with 0.326" Recess Dia. N/A Type II N/A No. 16 N/A 0.370 in N/A 0.211 in N/A 0.064 in N/A Point Same on all Drivers
N/A Type IA Cross Recessed Oval Countersunk Head Tapping Screw, with 0.326" Recess Dia. N/A Type IA N/A No. 16 N/A 0.326 in N/A 0.210 in N/A 0.057 in N/A 3
N/A Type I Cross Recessed Oval Countersunk Head Tapping Screw, with 0.326" Recess Dia. N/A Type I N/A No. 16 N/A 0.326 in N/A 0.202 in N/A 0.046 in N/A 3
N/A Type II Cross Recessed Oval Countersunk Head Tapping Screw, with 0.284" Recess Dia. N/A Type II N/A 1/4 in N/A 0.344 in N/A 0.195 in N/A 0.061 in N/A Point Same on all Drivers
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