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Grade 8 Hex Head Cap Screws

When the joint can’t slip, stretch or back off, go Grade 8. Kimball Midwest stocks SAE and USS hex head cap screws and fully threaded tap bolts up to 150,000 psi for engines, pumps, ag and heavy equipment. Choose plain for dry installs, zinc for everyday corrosion or Armor Coat for harsh washdowns. High head options bite harder.

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KM-USA High Head Grade 8 (USS) Hex Head Cap Screws - Zinc Plated
KM-USA High Head Grade 8 (USS) Hex Head Cap Screws - Zinc Plated
High head Grade 8 (USS) hex head cap screws made from medium carbon alloy steel with zinc yellow trivalent plating. Features a taller head for improved wrenchability, roll-formed coarse threads for fatigue resistance and 150,000 psi tensile strength. Suitable for heavy-duty assemblies.
Diameter: 1/4"

Length Thread Size Thread Type Series Package Qty Item #
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1/2"
1/4"-20
Coarse
KM-USA High Head
25
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1/2"
1/4"-20
Coarse
KM-USA High Head
100
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3/4"
1/4"-20
Coarse
KM-USA High Head
25
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3/4"
1/4"-20
Coarse
KM-USA High Head
100
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1"
1/4"-20
Coarse
KM-USA High Head
25
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1"
1/4"-20
Coarse
KM-USA High Head
100
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1-1/4"
1/4"-20
Coarse
KM-USA High Head
25
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1-1/4"
1/4"-20
Coarse
KM-USA High Head
100
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1-1/2"
1/4"-20
Coarse
KM-USA High Head
25
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1-1/2"
1/4"-20
Coarse
KM-USA High Head
100
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1-3/4"
1/4"-20
Coarse
KM-USA High Head
25
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1-3/4"
1/4"-20
Coarse
KM-USA High Head
100
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KM-USA High Head Grade 8 (SAE) Hex Head Cap Screws - Zinc Plated
KM-USA High Head Grade 8 (SAE) Hex Head Cap Screws - Zinc Plated
High-head Grade 8 hex head cap screws made from medium carbon alloy steel with zinc yellow trivalent plating. Features a taller head for improved wrenchability, roll-formed fine threads for fatigue resistance and a 30° head point for easier alignment; tensile strength 150,000 psi.
Diameter: 1/4"

Length Thread Size Thread Type Series Package Qty Item #
Price
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1/2"
1/4"-28
Fine
KM-USA High Head
25
Log in to view price
1/2"
1/4"-28
Fine
KM-USA High Head
100
Log in to view price
3/4"
1/4"-28
Fine
KM-USA High Head
25
Log in to view price
3/4"
1/4"-28
Fine
KM-USA High Head
100
Log in to view price
1"
1/4"-28
Fine
KM-USA High Head
25
Log in to view price
1"
1/4"-28
Fine
KM-USA High Head
100
Log in to view price
1-1/4"
1/4"-28
Fine
KM-USA High Head
25
Log in to view price
1-1/4"
1/4"-28
Fine
KM-USA High Head
100
Log in to view price
1-1/2"
1/4"-28
Fine
KM-USA High Head
25
Log in to view price
1-1/2"
1/4"-28
Fine
KM-USA High Head
100
Log in to view price
1-3/4"
1/4"-28
Fine
KM-USA High Head
25
Log in to view price
1-3/4"
1/4"-28
Fine
KM-USA High Head
100
Log in to view price

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Steeped in Kimball Midwest's commitment to American-made quality, our Grade 8 Hex Head cap screws are known for their superior strength and durability. They're ideal for heavy-duty applications where superior tensile strength is necessary.

Superior Strength and Durability

Our Grade 8 cap screws are crafted from high-strength carbon alloy steel and are designed for demanding applications and to deliver an extra margin of job safety. Their impressive strength makes them suitable for various industrial, machinery and automotive applications.

Cap Screws For Versatile Applications

Our hex head cap screws come in various sizes and lengths, making them versatile for different uses. Whether you need fasteners for machinery, construction or maintenance tasks, our Grade 8 screws offer the reliability you need to get the job done right. Choose from a variety of screw series including Armor Coat™, KM-USA High Head, Standard and Tap Bolt.

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