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Sales Systems Limited Products and Services > Fasteners Reference Guide > Bolts / Screws > Tapping Screws > Cross Recessed Pan Head Tapping Screws > Item # CRPHTSIA04375XXX  
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Item # CRPHTSIA04375XXX, Type IA Cross Recessed Pan Head Tapping Screw, with 0.863" Head Dia.


Applicable to screw types as indicated by code symbols.
  • Types B and BP thread forming and Types BF and BT thread cutting.
This type of recess has a large center opening, wide straight wings, and blunt bottom, with all edges relieved or rounded.




Manufacturer  · Specifications  · Codes and Standards

Manufacturer

Manufacturer
Industrial Fasteners Institute


Specifications

Product
Tapping Screws

Unit of Measure
English

Type
Type IA

Nominal Size or Basic Screw Dia.
7/16 in

Nominal Size or Basic Screw Dia. (Decimal)
0.4375 in

Applicable to Screw Types1

Max. Head Dia. (A)
0.863 in

Min. Head Dia. (A)
0.837 in

Max. Head Height (H)
0.305 in

Min. Head Height (H)
0.284 in

Min. Head Radius (R)
0.050 in

Ref. Recess Dia. (M)
0.392 in

Ref. Recess Depth (T)
0.242 in

Ref. Recess Width (N)
0.086 in

Driver Size
4

Max. Recess Penetration Gaging Depth
0.224 in

Min. Recess Penetration Gaging Depth
0.206 in
1 1 = Circle, 2 = Diamond, 3 = Triangle, 4 = Square


Codes and Standards

Codes and Standards
Abstract of ASME B18.6.4 1998


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Type Designations for Tapping Screws and Metallic Drive Screws
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