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Sales Systems Limited Products and Services > Fasteners > Bolts / Screws > Slotted Cap Screws > Slotted Flat Countersunk Head Cap Screws > Item # SFCHCS13750XXX  
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Item # SFCHCS13750XXX, Slotted Flat Countersunk Head Cap Screw, with 1.3750" Body Dia.

  • Where specifying nominal size in decimals, zeros preceding the decimal and in the fourth decimal place shall be omitted.
  • Tabulated values were determined from the formula for maximum H
  • No tolerance for gaging diameter is given. If the gaging diameter of the gage used differs from the tabulated value, the protrusion will be affected accordingly, and the proper protrusion values shall be recalculated using the formulas shown in Appendix.

Manufacturer  · Specifications  · Codes and Standards



Industrial Fasteners Institute



Slotted Cap Screws

Unit of Measure


Nominal Size or Basic Screw Dia.

1-3/8 in

Nominal Size or Basic Screw Dia. (Decimal)

1.3750 in

Max. Body Dia. (E)

1.3750 in

Min. Body Dia. (E)

1.3630 in

Max. Edge Sharp Head Dia. (A)

2.562 in

Min. Edge Rounded or Flat Head Dia. (A)

2.340 in

Ref. Head Height (H)

0.665 in

Max. Slot Width (J)

0.226 in

Min. Slot Width (J)

0.208 in

Max. Slot Depth (T)

0.326 in

Min. Slot Depth (T)

0.220 in

Max. Fillet Radius (U)

0.550 in

Max. Protrusion Above Gaging Dia. (F)

0.169 in

Min. Protrusion Above Gaging Dia. (F)

0.115 in

Gaging Dia. (G)

2.279 in

Codes and Standards

Codes and Standards

ASME B18.6.2 1998

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