Part NumberIARHRNB279-51618X114
Thread Size5/16"-18
Diameter0.3125
Diameter (Min.)0.298
Diameter (Max.)0.324
Thread Pitch18
Length1.25
Thread Length0.49975
Head Diameter (Min.)0.688
Head Diameter (Max.)0.719
Head Height(Min.)0.156
Head Height (Max.)0.176
Collar Diameter0.34
Collar Height0.594
Head TypeRound Head
Neck StyleRibbed Neck
Thread DirectionRight Hand
Thread AmountStandard Thread Length
Measurement SystemInch
SpecificationASME B18.5