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1/2"-20 X 3-1/4" KM-USA High Head Grade 8 (SAE) Cap Screw - 25 Pack

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Package Quantity: 25

Package Weight: 5.3 lbs

Item: 390826

To complete your set up check our KM-USA High Head Cap Screw Assortment.

Complete your Assembly with our nuts and washers:

  • 34-3908 - 1/2"-20 Hex Nuts - 50 Pack
  • 34-4908 - 1/2"-20 Ultra-Lock Nuts - 50 Pack
  • 34-8508 - 1/2"-20 Nylon Insert Lock Nuts - 25 Pack
  • 37-3808 - 1/2" USS Pattern Alloy Steel Flat Washer - 50 Pack
  • 37-3908 - 1/2" SAE Pattern Alloy Steel Flat Washer - 50 Pack
  • 37-4808 - 1/2" Alloy Steel Split Lock Washers - 100 Pack

Product Features:

  • 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 non-domestic products, including in assortments.

Brand: Kimball Midwest
Color: Yellow
Diameter: 1/2"
Finish: Zinc, Yellow Trivalent
Grade: 8
Head Style: Hex Head
Head Width: 3/4"
Length: 3-1/4"
Material: Medium Carbon Alloy Steel
Measurement Type: SAE
Minimum Thread Length: 1-1/4"
Series: KM-USA High Head
Tensile Strength: 150,000 PSI
Thread Length: Partially Threaded
Thread Pitch: 20
Thread Size: 1/2"-20
Thread Type: Fine


1/2-20 X 3-1/4 KM-USA High Head Grade 8 Cap Screw

To complete your set up check our KM-USA High Head Cap Screw Assortment.

Complete your Assembly with our nuts and washers:

  • 34-3908 - 1/2"-20 Hex Nuts - 50 Pack
  • 34-4908 - 1/2"-20 Ultra-Lock Nuts - 50 Pack
  • 34-8508 - 1/2"-20 Nylon Insert Lock Nuts - 25 Pack
  • 37-3808 - 1/2" USS Pattern Alloy Steel Flat Washer - 50 Pack
  • 37-3908 - 1/2" SAE Pattern Alloy Steel Flat Washer - 50 Pack
  • 37-4808 - 1/2" Alloy Steel Split Lock Washers - 100 Pack

Product Features:

  • 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 non-domestic products, including in assortments.

Brand: Kimball Midwest
Color: Yellow
Diameter: 1/2"
Finish: Zinc, Yellow Trivalent
Grade: 8
Head Style: Hex Head
Head Width: 3/4"
Length: 3-1/4"
Material: Medium Carbon Alloy Steel
Measurement Type: SAE
Minimum Thread Length: 1-1/4"
Series: KM-USA High Head
Tensile Strength: 150,000 PSI
Thread Length: Partially Threaded
Thread Pitch: 20
Thread Size: 1/2"-20
Thread Type: Fine


1/2-20 X 3-1/4 KM-USA High Head Grade 8 Cap Screw

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