Item # CBSCB03125XXX, Countersunk Bolt and Slotted Countersunk Bolt, with 0.324" Body Dia. On Sales Systems Ltd.

Where specifying nominal size in decimals, zeros preceding decimal and in the fourth decimal place shall be omitted.
Flat on minimum diameter head calculated on minimum sharp and absolute minimum head diameters and 82 deg head angle.
Head shall be unslotted, unless otherwise specified. Slot dimensions are same as Slotted Flat Countersunk Head Cap Screws in American National Standard, ASME B18.6.2.
Maximum head height calculated on maximum sharp head diameter, basic bolt diameter and 78 deg head angle.
Minimum head height calculated on minimum sharp head diameter, basic bolt diameter and 82 deg head angle.

Unit of Measure

Manufacturer | Specifications | Codes and Standards

N/A Industrial Fasteners Institute

Product	N/A Round Head Bolts
Unit of Measure	N/A English
Nominal Size or Basic Bolt Dia.	N/A 5/16 in
Nominal Size or Basic Bolt Dia. (Decimal)	N/A 0.3125 in
Max. Body Dia. (E)	N/A 0.324 in
Min. Body Dia. (E)	N/A 0.298 in
Max. Edge Sharp Head Dia. (A)	N/A 0.618 in
Min. Edge Sharp Head Dia. (A)	N/A 0.598 in
Absolute Min. Edge Rounded or Flat Head Dia. (A)	N/A 0.558 in
Max. Flat on Min. Dia. Head (F)	N/A 0.023 in
Max. Head Height (H)	N/A 0.189 in
Min. Head Height (H)	N/A 0.164 in
Max. Slot Width (J)	N/A 0.084 in
Min. Slot Width (J)	N/A 0.072 in
Max. Slot Depth (T)	N/A 0.086 in
Min. Slot Depth (T)	N/A 0.057 in

N/A ASME B18.5 1990 (R1998)

Manufacturer