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5/16"-18 x 3-3/4" KM-USA High Head Grade 8 (USS) Cap Screw - 25 Pack

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Package Quantity: 25

Package Weight: 2.2 lbs

Item: 380530

To complete your set up check out our Complete Grade 8 Coarse Thread Fastener Shop Setup and our KM-USA High Head Cap Screw Assortment.

Complete your Assembly with our nuts and washers:

  • 34-3805 - 5/16"-18 Hex Nuts - 100 Pack
  • 34-4805 - 5/16"-18 Ultra-Lock Nuts - 50 Pack
  • 34-8405 - 5/16"-18 Nylon Insert Lock Nuts - 50 Pack
  • 37-3805 - 5/16" USS Pattern Alloy Steel Flat Washer - 100 Pack
  • 37-3905 - 5/16" SAE Pattern Alloy Steel Flat Washer - 100 Pack
  • 37-4805 - 5/16" Alloy Steel Split Lock Washers - 100 Pack
  • 100% made in the U.S.A. from raw material melted and rolled in the U.S.A.
  • 100% lot traceability back to raw material.
  • 20% higher head provides increased wrenchability.
  • Special high strength chrome alloy steel.
  • 30° head point provides easier alignment in a threaded hole or with a hex nut.
  • Roll formed threads with 60° flank angle provide superior fatigue resistance.
  • UN Class 2A formed thread fit; post plating is considered Class 3A per ASME B1.1-2003 (R2008) and provides enhanced thread engagement.
  • RoHS Compliant Zinc-Yellow Trivalent Plated.
  • Tensile strength 150,000 P.S.I. minimum.

Please note that supply chain shortages may require us to temporarily substitute some nondomestic products, including in assortments.

Brand: Kimball Midwest
Color: Yellow
Diameter: 5/16"
Finish: Zinc, Yellow Trivalent
Grade: 8
Head Style: Hex Head
Head Width: 1/2"
Length: 3-3/4"
Material: Medium Carbon Alloy Steel
Measurement Type: USS
Minimum Thread Length: 7/8"
Series: KM-USA High Head
Tensile Strength: 150,000 PSI
Thread Length: Partially Threaded
Thread Pitch: 18
Thread Size: 5/16"-18
Thread Type: Coarse


WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov.

To complete your set up check out our Complete Grade 8 Coarse Thread Fastener Shop Setup and our KM-USA High Head Cap Screw Assortment.

Complete your Assembly with our nuts and washers:

  • 34-3805 - 5/16"-18 Hex Nuts - 100 Pack
  • 34-4805 - 5/16"-18 Ultra-Lock Nuts - 50 Pack
  • 34-8405 - 5/16"-18 Nylon Insert Lock Nuts - 50 Pack
  • 37-3805 - 5/16" USS Pattern Alloy Steel Flat Washer - 100 Pack
  • 37-3905 - 5/16" SAE Pattern Alloy Steel Flat Washer - 100 Pack
  • 37-4805 - 5/16" Alloy Steel Split Lock Washers - 100 Pack
  • 100% made in the U.S.A. from raw material melted and rolled in the U.S.A.
  • 100% lot traceability back to raw material.
  • 20% higher head provides increased wrenchability.
  • Special high strength chrome alloy steel.
  • 30° head point provides easier alignment in a threaded hole or with a hex nut.
  • Roll formed threads with 60° flank angle provide superior fatigue resistance.
  • UN Class 2A formed thread fit; post plating is considered Class 3A per ASME B1.1-2003 (R2008) and provides enhanced thread engagement.
  • RoHS Compliant Zinc-Yellow Trivalent Plated.
  • Tensile strength 150,000 P.S.I. minimum.

Please note that supply chain shortages may require us to temporarily substitute some nondomestic products, including in assortments.

Brand: Kimball Midwest
Color: Yellow
Diameter: 5/16"
Finish: Zinc, Yellow Trivalent
Grade: 8
Head Style: Hex Head
Head Width: 1/2"
Length: 3-3/4"
Material: Medium Carbon Alloy Steel
Measurement Type: USS
Minimum Thread Length: 7/8"
Series: KM-USA High Head
Tensile Strength: 150,000 PSI
Thread Length: Partially Threaded
Thread Pitch: 18
Thread Size: 5/16"-18
Thread Type: Coarse


WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov.

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