Attributes

Key Value
Dia./Thread Size5/16"-18
Dimensional StandardsASME B18.2.1
Dimensional StandardsASME B18.2.1
DriveExternal Hex
Fastener Length2-1/2 in
FinishBlack Oxide
Head Height7/32 in
Head Width0.5 in
ItemHex Head Cap Screw
Length Under Head2-1/2"
MaterialSteel
Material Grade/ClassGrade 8
Minimum Thread Length2 1/2 in
Proof Load120,000 psi
Size5/16"-18 x 2-1/2"
StandardsASME B18.2.1 SAE J429
System of MeasurementInch
Tensile Strength150,000 psi
Thread DirectionRight Hand
Thread Length2-1/2"
Thread Size5/16"-18
Thread StyleFully Threaded
Thread TypeUNC
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