• A light rounding of the edges at the periphery of the head shall be permissible provided the diameter of the bearing circle is equal to no less than 90 percent of the specified minimum head diameter.
  • Where specifying nominal size in decimals, zeros preceding the decimal and in the fourth decimal place shall be omitted.
  • Formulas for head dimensions are given in Appendix.
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Unit of Measure
Items
Slotted Fillister Head Cap Screws

Slotted Fillister Head Cap Screw, with 0.2500" Body Dia.
Slotted Fillister Head Cap Screws

Slotted Fillister Head Cap Screw, with 0.3125" Body Dia.
Slotted Fillister Head Cap Screws

Slotted Fillister Head Cap Screw, with 0.3750" Body Dia.
Slotted Fillister Head Cap Screws

Slotted Fillister Head Cap Screw, with 0.4375" Body Dia.
Slotted Fillister Head Cap Screws

Slotted Fillister Head Cap Screw, with 0.5000" Body Dia.
Manufacturer N/A Industrial Fasteners Institute
Product N/A Slotted Cap Screws
Codes and Standards N/A ASME B18.6.2 1998
Unit of Measure N/A English
Nominal Size or Basic Screw Dia. N/A 1/4 in N/A 5/16 in N/A 3/8 in N/A 7/16 in N/A 1/2 in
Nominal Size or Basic Screw Dia. (Decimal)1 N/A 0.2500 in N/A 0.3125 in N/A 0.3750 in N/A 0.4375 in N/A 0.5000 in
Max. Body Dia. (E) N/A 0.2500 in N/A 0.3125 in N/A 0.3750 in N/A 0.4375 in N/A 0.5000 in
Min. Body Dia. (E) N/A 0.2450 in N/A 0.3070 in N/A 0.3690 in N/A 0.4310 in N/A 0.4930 in
Max. Head Dia. (A) N/A 0.375 in N/A 0.437 in N/A 0.562 in N/A 0.625 in N/A 0.750 in
Min. Head Dia. (A) N/A 0.363 in N/A 0.424 in N/A 0.547 in N/A 0.608 in N/A 0.731 in
Max. Head Side Height (H) N/A 0.172 in N/A 0.203 in N/A 0.250 in N/A 0.297 in N/A 0.328 in
Min. Head Side Height (H) N/A 0.157 in N/A 0.186 in N/A 0.229 in N/A 0.274 in N/A 0.301 in
Max. Total Head Height (O) N/A 0.216 in N/A 0.253 in N/A 0.314 in N/A 0.368 in N/A 0.413 in
Min. Total Head Height (O) N/A 0.194 in N/A 0.230 in N/A 0.284 in N/A 0.336 in N/A 0.376 in
Max. Slot Width (J) N/A 0.075 in N/A 0.084 in N/A 0.094 in N/A 0.094 in N/A 0.106 in
Min. Slot Width (J) N/A 0.064 in N/A 0.072 in N/A 0.081 in N/A 0.081 in N/A 0.091 in
Max. Slot Depth (T) N/A 0.097 in N/A 0.115 in N/A 0.142 in N/A 0.168 in N/A 0.193 in
Min. Slot Depth (T) N/A 0.077 in N/A 0.090 in N/A 0.112 in N/A 0.133 in N/A 0.153 in
Max. Fillet Radius (U) N/A 0.031 in N/A 0.031 in N/A 0.031 in N/A 0.047 in N/A 0.047 in
Min. Fillet Radius (U) N/A 0.016 in
  • 1 Where specifying nominal size in decimals, zeros preceding and in the fourth decimal, place shall be omitted.
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