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

Manufacturer

Manufacturer

N/A Industrial Fasteners Institute

Specifications

Product

N/A Tapping Screws

Unit of Measure

N/A English

Nominal Size or Basic Screw Dia.

N/A No. 14

Nominal Size or Basic Screw Dia. (Decimal)

N/A 0.2420 in
Applicable to Screw Types1 N/A 2

Length for Types AB and A (L)

N/A 5/8 in

Max. Head Dia. (A)

N/A 0.462 in

Min. Head Dia. (A)

N/A 0.427 in

Ref. Head Height (H)

N/A 0.148 in

Max. Slot Width (J)

N/A 0.075 in

Min. Slot Width (J)

N/A 0.064 in

Max. Slot Depth (T)

N/A 0.068 in

Min. Slot Depth (T)

N/A 0.044 in

Max. Protrusion Above Gaging Dia. (F)

N/A 0.049 in

Min. Protrusion Above Gaging Dia. (F)

N/A 0.029 in

Gaging Dia. (G)

N/A 0.410 in

Codes and Standards

Codes and Standards

N/A Abstract of ASME B18.6.4 1998
  • 1 1 = Circle, 2 = Diamond, 3 = Triangle, 4 = Square
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