• Cross Recessed Flat Countersunk Head Tapping Screws - TYPE I
  • Type Designations for Tapping Screws and Metallic Drive Screws
  • Where specifying nominal size in decimals, zeros preceding decimal and in the fourth decimal place shall be omitted.
  • Head dimensions not shown are the same as those of slotted heads
  • Not practical to gage sizes No. 0 and No. 1.
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Item #

Description

Type

Nominal Size or Basic Screw Dia.

Ref. (M)

Ref. (T)

Ref. (N)

Driver Size

N/A Type II Cross Recessed Flat Countersunk Head Tapping Screw, 0.1640" Nominal Dia. N/A Type II N/A No. 8 N/A 0.224 in N/A 0.124 in N/A 0.043 in N/A Point Same on all Drivers
N/A Type II Cross Recessed Flat Countersunk Head Tapping Screw, 0.1900" Nominal Dia. N/A Type II N/A No. 10 N/A 0.260 in N/A 0.148 in N/A 0.048 in N/A Point Same on all Drivers
N/A Type II Cross Recessed Flat Countersunk Head Tapping Screw, 0.2160" Nominal Dia. N/A Type II N/A No. 12 N/A 0.297 in N/A 0.172 in N/A 0.054 in N/A Point Same on all Drivers
N/A Type II Cross Recessed Flat Countersunk Head Tapping Screw, 0.2420" Nominal Dia. N/A Type II N/A No. 14 N/A 0.334 in N/A 0.188 in N/A 0.059 in N/A Point Same on all Drivers
N/A Type II Cross Recessed Flat Countersunk Head Tapping Screw, 0.2500" Nominal 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
N/A Type II Cross Recessed Flat Countersunk Head Tapping Screw, 0.2680" Nominal 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 II Cross Recessed Flat Countersunk Head Tapping Screw, 0.2940" Nominal 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 II Cross Recessed Flat Countersunk Head Tapping Screw, 0.3125" Nominal 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 II Cross Recessed Flat Countersunk Head Tapping Screw, 0.3200" Nominal 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 II Cross Recessed Flat Countersunk Head Tapping Screw, 0.3720" Nominal 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 Flat Countersunk Head Tapping Screw, 0.3750" Nominal 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 II Cross Recessed Flat Countersunk Head Tapping Screw, 0.4375" Nominal 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 Flat Countersunk Head Tapping Screw, 0.5000" Nominal 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
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