This hex head cap screw is made of Grade 8 steel and has a black oxide finish. It meets the standards for SAE J429 material quality in addition to ASME B18.2.1 dimensional standards.
Technical Specs
ItemHex Head Cap Screw
Material Grade/ClassGrade 8
Thread Size5/8"-18
Fastener Length3 1/2 in
Head Width15/16 in
DriveHex
Rockwell HardnessC33
Material Quality StandardsSAE J429
Overall Length3 1/2 in
Thread StylePartially Threaded
Head StyleHex
Screw Size5/8 in
MaterialSteel
FinishBlack Oxide
Thread DirectionRight Hand
Minimum Thread Length1 1/2 in
Head Height25/64 in
Tensile Strength150,000 psi
Dimensional StandardsASME B18.2.1
System of MeasurementInch
Thread Fit2A
TypeHex Head Cap Screw
Thread TypeFine
Country of OriginUnited States
(subject to change)