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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| Item # | Diameter | Length | Thread Size | Thread Type | Series | Package Qty | |||
|---|---|---|---|---|---|---|---|---|---|
|
|
3820404
|
1/4"
|
1/4"-20
|
Coarse
|
Armor Coat™
|
100
|
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|
|
3820508
|
5/16"
|
5/16"-18
|
Coarse
|
Armor Coat™
|
100
|
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|
|
3820606
|
3/8"
|
3/8"-16
|
Coarse
|
Armor Coat™
|
50
|
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|
|
3820706
|
7/16"
|
7/16"-14
|
Coarse
|
Armor Coat™
|
50
|
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|
|
3820808
|
1/2"
|
1/2"-13
|
Coarse
|
Armor Coat™
|
25
|
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|
|
3821010
|
5/8"
|
5/8"-11
|
Coarse
|
Armor Coat™
|
25
|
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|
|
3821212
|
3/4"
|
3/4"-10
|
Coarse
|
Armor Coat™
|
10
|
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| Item # | Name | Material | Finish | Measurement Type | Number of Pieces | Package Qty | |||
|---|---|---|---|---|---|---|---|---|---|
|
|
40387
|
Grade 8 Armor Coat™ Hex Head Cap Screw Assortment (1/4" - 1/2")
|
Medium Carbon Alloy Steel
|
Armor Coat
|
USS
|
1,735
|
1
|
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| Item # | Name | Material | Finish | Measurement Type | Number of Pieces | Package Qty | |||
|---|---|---|---|---|---|---|---|---|---|
|
|
403875
|
Grade 8 Armor Coat™ Hex Head Cap Screw Assortment (1/4" - 3/4")
|
Medium Carbon Alloy Steel
|
Armor Coat
|
USS
|
1,910
|
1
|
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|
|
403872
|
Grade 8 Hex Head Cap Screw Assortment (1/4" - 5/8")
|
Medium Carbon Alloy Steel
|
Armor Coat
|
USS
|
2,720
|
1
|
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| Item # | Name | Material | Finish | Measurement Type | Number of Pieces | Package Qty | |||
|---|---|---|---|---|---|---|---|---|---|
|
|
403872RE
|
Refill Kit for Grade 8 Armor Coat™ (USS) Hex Head Cap Screw Large Assortment (1/4" - 5/8")
|
Medium Carbon Alloy Steel
|
Armor Coat
|
USS
|
2,720
|
1
|
Log in to view price | |
|
|
403875RE
|
Refill Kit for Grade 8 Armor Coat™ (USS) Hex Head Cap Screw Small Assortment (1/4" - 3/4")
|
Medium Carbon Alloy Steel
|
Armor Coat
|
USS
|
1,910
|
1
|
Log in to view price | |
|
|
40387RE
|
Refill Kit for Grade 8 Armor Coat™ Hex Head Cap Screw Assortment (1/4" - 1/2")
|
Medium Carbon Alloy Steel
|
Armor Coat
|
USS
|
1,735
|
1
|
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.