5/8"-18, Steel Hex Head Cap Screw, Grade 5, 1"L, Zinc Plated Finish, 10 PK
These hex head screws each feature a thick, hexagonal head designed for tightening with a wrench. Use in pretapped holes or with nuts. Grade 5 steel construction offers strength and moderate flexibility. The screws are hardened, yet more malleable than Grade 8, allowing them to withstand shear force.
ItemHex Head Cap Screw
System of MeasurementInch
Cap Screw TypeHex Head Cap Screw
Material GradeGrade 5
Fastener FinishZinc Plated
Fastener Thread DirectionRight Hand
Fastener Thread TypeUNF (Fine)
Fastener Thread StyleFully Threaded
Fastener Industry StandardsASME B18.2.1
Min. Thread Length1"
Proof Load74,000 to 85,000 psi
Tensile Strength105,000 to 120,000 psi
Rockwell HardnessC19 to C30
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