• 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.
Unit of Measure

Manufacturer

Manufacturer

N/A Industrial Fasteners Institute

Specifications

Product

N/A Round Head Bolts

Unit of Measure

N/A English

Nominal Size or Basic Bolt Dia.

N/A 3/8 in

Nominal Size or Basic Bolt Dia. (Decimal)

N/A 0.3750 in

Max. Body Dia. (E)

N/A 0.388 in

Min. Body Dia. (E)

N/A 0.329 in

Max. Head Dia. (A)

N/A 0.844 in

Min. Head Dia. (A)

N/A 0.782 in

Max. Head Height (H)

N/A 0.208 in

Min. Head Height (H)

N/A 0.188 in

Max. Square Width (O)

N/A 0.388 in

Min. Square Width (O)

N/A 0.368 in

Max. Square Depth (P)

N/A 0.156 in

Min. Square Depth (P)

N/A 0.125 in

Max. Corner Radius on Square (Q)

N/A 0.047 in

Max. Fillet Radius (R)

N/A 0.031 in

Codes and Standards

Codes and Standards

N/A ASME B18.5 1990 (R1998)
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