Attributes

Key Value
DriveExternal Hex
Fastener Length1-1/4 in
FinishBlack Oxide
Head Height7/32 in
Head Width0.5 in
ItemHex Head Cap Screw
MaterialSteel
Material Grade/ClassGrade 8
Minimum Thread Length1 1/4 in
Proof Load120,000 psi
Rockwell HardnessHRC33
Size5/16"-18 x 1-1/4"
StandardsASME B18.2.1 SAE J429
System of MeasurementInch
Tensile Strength150,000 psi
Thread DirectionRight Hand
Thread Length1-1/4"
Thread PitchFully Threaded
Thread Size5/16"-18
Thread StyleFully Threaded
Thread TypeUNC
TypeHex Tap Bolt
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