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  • Where specifying nominal size in decimals, zeros preceding decimal and in the fourth decimal place shall be omitted.
  • The minimum radius is one half of the value shown.
Flat Countersunk Head Elevator Bolts
Unit of Measure
Items Flat Countersunk Head Elevator Bolts
FCHEB01900XXX
Flat Countersunk Head Elevator Bolt, with 0.199" Body Dia.
Flat Countersunk Head Elevator Bolts
FCHEB02500XXX
Flat Countersunk Head Elevator Bolt, with 0.260" Body Dia.
Flat Countersunk Head Elevator Bolts
FCHEB03125XXX
Flat Countersunk Head Elevator Bolt, with 0.324" Body Dia.
Flat Countersunk Head Elevator Bolts
FCHEB03750XXX
Flat Countersunk Head Elevator Bolt, with 0.388" Body Dia.
Flat Countersunk Head Elevator Bolts
FCHEB04375XXX
Flat Countersunk Head Elevator Bolt, with 0.452" Body Dia.
Manufacturer N/A Industrial Fasteners Institute
Product N/A Round Head Bolts
Codes and Standards N/A ASME B18.5 1990 (R1998)
Unit of Measure N/A English
Nominal Size or Basic Bolt Dia. N/A No. 10 N/A 1/4 in N/A 5/16 in N/A 3/8 in N/A 7/16 in
Nominal Size or Basic Bolt Dia. (Decimal) N/A 0.1900 in N/A 0.2500 in N/A 0.3125 in N/A 0.3750 in N/A 0.4375 in
Max. Body Dia. (E) N/A 0.199 in N/A 0.260 in N/A 0.324 in N/A 0.388 in N/A 0.452 in
Min. Body Dia. (E) N/A 0.182 in N/A 0.237 in N/A 0.298 in N/A 0.360 in N/A 0.421 in
Max. Edge Sharp Head Dia. (A) N/A 0.790 in N/A 1.008 in N/A 1.227 in N/A 1.352 in N/A 1.477 in
Min. Edge Sharp Head Dia. (A) N/A 0.750 in N/A 0.969 in N/A 1.188 in N/A 1.312 in N/A 1.438 in
Min. Edge Flat Head Dia. (A) N/A 0.740 in N/A 0.938 in N/A 1.157 in N/A 1.272 in N/A 1.397 in
Ref. Head Angle (C) N/A N/A N/A N/A 11º N/A 13º
Max. Flat on Min. Dia. Head (F) N/A 0.025 in N/A 0.035 in N/A 0.035 in N/A 0.040 in N/A 0.040 in
Max. Head Height (H) N/A 0.082 in N/A 0.098 in N/A 0.114 in N/A 0.145 in N/A 0.176 in
Min. Head Height (H) N/A 0.062 in N/A 0.078 in N/A 0.094 in N/A 0.125 in N/A 0.156 in
Max. Square Width (O) N/A 0.210 in N/A 0.280 in N/A 0.342 in N/A 0.405 in N/A 0.468 in
Min. Square Width (O) N/A 0.185 in N/A 0.245 in N/A 0.307 in N/A 0.368 in N/A 0.431 in
Max. Square Depth (P) N/A 0.125 in N/A 0.219 in N/A 0.250 in N/A 0.250 in N/A 0.281 in
Min. Square Depth (P) N/A 0.094 in N/A 0.188 in N/A 0.219 in N/A 0.219 in N/A 0.250 in
Max. Corner Radius on Square (Q) 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
Max. Fillet Radius (R) N/A 0.031 in