7/8"-9 x 4-1/2" Grade 5 Zinc Plated UNC (Coarse) Hex Head Cap Screws 4pk (183686233422-WTA30)


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SKU: 183686233422-WTA30

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Product Details

With Grade 5 steel construction, these hex head cap screws offer strength and moderate flexibility. The thick, hexagonal head design is engineered for tightening with a wrench. Use in pretapped holes or with nuts. Grade 5 steel is hardened, yet more malleable than Grade 8, allowing the screws to withstand shear force.

Technical Specs

  • ItemHex Head Cap Screw
  • System of MeasurementInch
  • Cap Screw TypeHex Head Cap Screw
  • Basic MaterialSteel
  • Material GradeGrade 5
  • Fastener FinishZinc Plated
  • Dia./Thread Size7/8"-9
  • Fastener Length4-1/2"
  • Fastener Thread DirectionRight Hand
  • Fastener Thread TypeUNC (Coarse)
  • Fastener Thread StylePartially Threaded
  • Fastener Industry StandardsASME B18.2.1
  • Head TypeHex
  • Min. Thread Length2"
  • Head Height35/64"
  • Head Width1-5/16"
  • Proof Load74,000 to 85,000 psi
  • Tensile Strength105,000 to 120,000 psi
  • Rockwell HardnessC19 to C30