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Sales Systems Limited Products and Services > Fasteners > Bolts / Screws > Tapping Screws > Cross Recessed Fillister Head Tapping Screws > Item # CRFHTSI02420XXX  
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Item # CRFHTSI02420XXX, Type I Cross Recessed Fillister Head Tapping Screw, 0.2420" Nominal Dia.

Applicable to screw types as indicated by code symbols.
  • Type A thread forming, except for short lengths.
This type recess has a large center opening, tapered wings, and blunt bottom, with all edges relieved or rounded.

Manufacturer  · Specifications  · Codes and Standards



Industrial Fasteners Institute



Tapping Screws

Unit of Measure



Type I

Nominal Size or Basic Screw Dia.

No. 14

Nominal Size or Basic Screw Dia. (Decimal)

0.2420 in

Applicable to Screw Types1

Ref. Recess Dia. (M)

0.274 in

Ref. Recess Depth (T)

0.148 in

Ref. Recess Width (N)

0.034 in

Driver Size


Max. Recess Penetration Gaging Depth

0.144 in

Min. Recess Penetration Gaging Depth

0.118 in
1 1 = Circle, 2 = Diamond, 3 = Triangle, 4 = Square

Codes and Standards

Codes and Standards

Abstract of ASME B18.6.4 1998


Type Designations for Tapping Screws and Metallic Drive Screws
(PDF, 206KB)

Distributor of Industry Standard and Military Specification Threaded Fasteners