Item # CRUOCHTSIA05000XXX, Type IA Cross Recessed Undercut Oval Countersunk Head Tapping Screw, with 0.416" Recess Dia. On Sales Systems Ltd.

Applicable to screw types as indicated by code symbols.

This type of recess has a large center opening, wide straight wings, and blunt bottom, with all edges relieved or rounded.

Unit of Measure

Manufacturer | Specifications | Codes and Standards

Industrial Fasteners Institute

Product	N/A Tapping Screws
Unit of Measure	N/A English
Type	N/A Type IA
Nominal Size or Basic Screw Dia.	N/A 1/2 in
Nominal Size or Basic Screw Dia. (Decimal)	N/A 0.5000 in
Applicable to Screw Types¹	N/A 3
Ref. Recess Dia. (M)	N/A 0.416 in
Ref. Recess Depth (T)	N/A 0.265 in
Ref. Recess Width (N)	N/A 0.086 in
Driver Size	N/A 4
Max. Recess Penetration Gaging Depth	N/A 0.247 in
Min. Recess Penetration Gaging Depth	N/A 0.229 in

Abstract of ASME B18.6.4 1998

Manufacturer