• 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.
This type of recess consists of two intersecting slots with parallel sides converging to a slightly truncated apex at bottom of recess.
Unit of Measure

Manufacturer

Manufacturer

 Industrial Fasteners Institute

Specifications

Product

 Tapping Screws

Unit of Measure

 English

Type

 Type II

Nominal Size or Basic Screw Dia.

 No. 2

Nominal Size or Basic Screw Dia. (Decimal)

 0.0860 in

Ref. Recess Dia. (M)

 0.114 in

Ref. Recess Depth (T)

 0.060 in

Ref. Recess Width (N)

 0.027 in

Driver Size

 Point Same on all Drivers

Max. Recess Penetration Gaging Depth

 0.040 in

Min. Recess Penetration Gaging Depth

 0.029 in

Codes and Standards

Codes and Standards

 Abstract of ASME B18.6.4 1998
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