Item # CRPHTSIA03125XXX, Type IA Cross Recessed Pan Head Tapping Screw, with 0.615" 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 5/16 in
Nominal Size or Basic Screw Dia. (Decimal)	N/A 0.3125 in
Applicable to Screw Types¹	N/A 1 3 4
Max. Head Dia. (A)	N/A 0.615 in
Min. Head Dia. (A)	N/A 0.594 in
Max. Head Height (H)	N/A 0.218 in
Min. Head Height (H)	N/A 0.203 in
Min. Head Radius (R)	N/A 0.040 in
Ref. Recess Dia. (M)	N/A 0.334 in
Ref. Recess Depth (T)	N/A 0.182 in
Ref. Recess Width (N)	N/A 0.086 in
Driver Size	N/A 4
Max. Recess Penetration Gaging Depth	N/A 0.164 in
Min. Recess Penetration Gaging Depth	N/A 0.146 in

N/A Abstract of ASME B18.6.4 1998

Manufacturer