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Sales Systems Limited Products and Services > Fasteners > Bolts / Screws > Tapping Screws > Slotted Flat Countersunk Head Tapping Screws > Item # SFCHTS02420XXX  
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Item # SFCHTS02420XXX, Slotted Flat Countersunk Head Tapping Screw, with 0.462" Head Dia.

Applicable to screw types as indicated by code symbols.
  • Type A thread forming, except for short lengths.

Manufacturer  · Specifications  · Codes and Standards



Industrial Fasteners Institute



Tapping Screws

Unit of Measure


Nominal Size or Basic Screw Dia.

No. 14

Nominal Size or Basic Screw Dia. (Decimal)

0.2420 in

Applicable to Screw Types1

Length for Types AB and A (L)

5/8 in

Max. Head Dia. (A)

0.462 in

Min. Head Dia. (A)

0.427 in

Ref. Head Height (H)

0.148 in

Max. Slot Width (J)

0.075 in

Min. Slot Width (J)

0.064 in

Max. Slot Depth (T)

0.068 in

Min. Slot Depth (T)

0.044 in

Max. Protrusion Above Gaging Dia. (F)

0.049 in

Min. Protrusion Above Gaging Dia. (F)

0.029 in

Gaging Dia. (G)

0.410 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