Item # CRFCHTSII01640XXX, Type II Cross Recessed Flat Countersunk Head Tapping Screw, 0.1640" Nominal Dia. On Sales Systems Ltd.

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 | Specifications | Codes and Standards

N/A Industrial Fasteners Institute

Product	N/A Tapping Screws
Unit of Measure	N/A English
Type	N/A Type II
Nominal Size or Basic Screw Dia.	N/A No. 8
Nominal Size or Basic Screw Dia. (Decimal)	N/A 0.1640 in
Ref. Recess Dia. (M)	N/A 0.224 in
Ref. Recess Depth (T)	N/A 0.124 in
Ref. Recess Width (N)	N/A 0.043 in
Driver Size	N/A Point Same on all Drivers
Max. Recess Penetration Gaging Depth	N/A 0.113 in
Min. Recess Penetration Gaging Depth	N/A 0.099 in

N/A Abstract of ASME B18.6.4 1998

Manufacturer