Item # CRPHTSIA02500XXX, Type IA Cross Recessed Pan Head Tapping Screw, with 0.492" Head 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

N/A 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 1/4 in
Nominal Size or Basic Screw Dia. (Decimal)	N/A 0.2500 in
Applicable to Screw Types¹	N/A 1 3 4
Max. Head Dia. (A)	N/A 0.492 in
Min. Head Dia. (A)	N/A 0.473 in
Max. Head Height (H)	N/A 0.175 in
Min. Head Height (H)	N/A 0.162 in
Min. Head Radius (R)	N/A 0.035 in
Ref. Recess Dia. (M)	N/A 0.266 in
Ref. Recess Depth (T)	N/A 0.150 in
Ref. Recess Width (N)	N/A 0.057 in
Driver Size	N/A 3
Max. Recess Penetration Gaging Depth	N/A 0.137 in
Min. Recess Penetration Gaging Depth	N/A 0.119 in

N/A Abstract of ASME B18.6.4 1998

Manufacturer