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Grade 5 Hex Head Cap Screws

When Grade 2 won’t hold torque, step up to Grade 5. We stock USS and SAE hex head cap screws with the 3-line head mark for consistent clamp load in machinery, truck and plant repairs. Choose plain for dry indoor work, zinc or yellow zinc for corrosion resistance, or fully threaded tap bolts for max grip. Assortments keep you moving.

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732 results
Grade 5 (USS) Hex Head Cap Screws - Zinc Plated
Grade 5 (USS) Hex Head Cap Screws - Zinc Plated
Grade 5 USS hex head cap screws made from carbon steel with a zinc plated finish. Marked with three radial lines and featuring a washer face under the head and chamfered tip for faster assembly. Coarse threads provide standard fastening strength and improved bearing contact for general service.
Diameter: 1/4"

Length Thread Size Thread Type Package Qty Item #
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1/2"
1/4"-20
Coarse
25
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1/2"
1/4"-20
Coarse
100
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5/8"
1/4"-20
Coarse
100
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3/4"
1/4"-20
Coarse
25
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3/4"
1/4"-20
Coarse
100
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7/8"
1/4"-20
Coarse
100
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1"
1/4"-20
Coarse
25
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1"
1/4"-20
Coarse
100
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1-1/4"
1/4"-20
Coarse
25
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1-1/4"
1/4"-20
Coarse
100
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1-1/2"
1/4"-20
Coarse
25
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1-1/2"
1/4"-20
Coarse
100
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Grade 5 (SAE) Hex Head Cap Screws - Zinc Plated
Grade 5 (SAE) Hex Head Cap Screws - Zinc Plated
Grade 5 hex head cap screws made from carbon steel with a zinc-plated finish. Marked with three radial lines to indicate Grade 5, featuring a washer face under the head and chamfered tip for faster assembly. Provides consistent tensile strength and meets SAE/IFI tolerances.
Diameter: 1/4"

Length Thread Size Thread Type Package Qty Item #
Price
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1/2"
1/4"-28
Fine
100
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3/4"
1/4"-28
Fine
100
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1"
1/4"-28
Fine
100
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1-1/4"
1/4"-28
Fine
100
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1-1/2"
1/4"-28
Fine
100
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1-3/4"
1/4"-28
Fine
100
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2"
1/4"-28
Fine
100
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2-1/4"
1/4"-28
Fine
50
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2-1/2"
1/4"-28
Fine
50
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2-3/4"
1/4"-28
Fine
50
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3"
1/4"-28
Fine
50
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3-1/2"
1/4"-28
Fine
25
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Grade 5 (USS) Hex Head Cap Screws - Plain Finish
Grade 5 (USS) Hex Head Cap Screws - Plain Finish
Grade 5 USS hex head cap screws made from carbon steel with a plain finish, marked with three radial lines to indicate Grade 5. Coarse threads and chamfered tips for faster assembly, washer face under the head provides a smooth bearing surface and tensile strength around 120,000 psi.
Diameter: 1/4"

Length Thread Size Thread Type Package Qty Item #
Price
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1/4"
1/4"-20
Coarse
100
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1/2"
1/4"-20
Coarse
100
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3/4"
1/4"-20
Coarse
100
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1"
1/4"-20
Coarse
100
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1-1/4"
1/4"-20
Coarse
100
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1-1/2"
1/4"-20
Coarse
100
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2"
1/4"-20
Coarse
100
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2-1/4"
1/4"-20
Coarse
50
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2-1/2"
1/4"-20
Coarse
50
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2-3/4"
1/4"-20
Coarse
50
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3"
1/4"-20
Coarse
50
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3-1/4"
1/4"-20
Coarse
25
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Grade 5 (USS) Hex Head Cap Screws - Yellow Zinc Plated
Grade 5 (USS) Hex Head Cap Screws - Yellow Zinc Plated
Grade 5 (USS) hex head cap screws made from carbon steel with a yellow zinc finish. Coarse threads and 120,000 psi minimum tensile strength provide high strength for general-purpose assemblies, while the zinc plating helps resist corrosion. Suitable for industrial fastening.
Diameter: 1/4"

Length Thread Size Thread Type Package Qty Item #
Price
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1/2"
1/4"-20
Coarse
100
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3/4"
1/4"-20
Coarse
100
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1-1/2"
1/4"-20
Coarse
100
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3"
1/4"-20
Coarse
50
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4"
1/4"-20
Coarse
25
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Diameter: 5/16"

Length Thread Size Thread Type Package Qty Item #
Price
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1/2"
5/16"-18
Coarse
100
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3/4"
5/16"-18
Coarse
100
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1-1/4"
5/16"-18
Coarse
100
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1-1/2"
5/16"-18
Coarse
100
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1-3/4"
5/16"-18
Coarse
100
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2"
5/16"-18
Coarse
100
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2-1/4"
5/16"-18
Coarse
50
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Grade 5 (USS) Fully Threaded Hex Head Tap Bolts - Zinc Plated
Grade 5 (USS) Fully Threaded Hex Head Tap Bolts - Zinc Plated
Grade 5 fully threaded hex head tap bolts made from carbon steel with zinc plating and coarse USS threads. Marked with three radial lines for grade ID, they feature a washer face under the head and chamfered tip for faster assembly. 120,000 psi tensile strength; suitable for general structural fastening.
Diameter: 1/4"

Length Thread Size Thread Type Package Qty Item #
Price
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1"
1/4"-20
Coarse
100
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1-1/4"
1/4"-20
Coarse
100
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1-1/2"
1/4"-20
Coarse
100
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2"
1/4"-20
Coarse
100
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2-1/2"
1/4"-20
Coarse
50
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3"
1/4"-20
Coarse
50
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Diameter: 5/16"

Length Thread Size Thread Type Package Qty Item #
Price
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1"
5/16"-18
Coarse
100
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1-1/4"
5/16"-18
Coarse
100
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1-1/2"
5/16"-18
Coarse
100
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1-3/4"
5/16"-18
Coarse
100
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2"
5/16"-18
Coarse
100
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2-1/2"
5/16"-18
Coarse
50
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Grade 5 (USS) Hex Head Cap Screw Assortments
Grade 5 (USS) Hex Head Cap Screw Assortments
Grade 5 (USS) hex head cap screw assortments made from carbon steel with zinc plating. Marked with three radial lines for grade ID, coarse threads and a washer face under the head; chamfered tips for faster assembly. Provides standardized strength and broad size coverage for general assembly.
Storage Type: 24-Compartment Drawer

Name Material Finish Measurement Type Number of Pieces Package Qty Item #
Price
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Fully Threaded Grade 5 Hex Head Cap Screw (Tap Bolt) Assortment (1/4" - 1/2")
Carbon Steel
Zinc Plated
USS
360
1
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Grade 5 (USS) Hex Head Cap Screw Assortment (1/4" - 3/8")
Carbon Steel
Zinc Plated
USS
775
1
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Storage Type: 40-Hole Bin

Name Material Finish Measurement Type Number of Pieces Package Qty Item #
Price
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Grade 5 (USS) Hex Head Cap Screw 40 Hole Bin Assortment (1/4" - 1/2")
Carbon Steel
Zinc Plated
USS
1,835
1
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Grade 5 (USS) Hex Head Cap Screw Bin Assortment (1/4" - 3/8")
Carbon Steel
Zinc Plated
USS
1,200
1
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Storage Type: 80-Hole Bin

Name Material Finish Measurement Type Number of Pieces Package Qty Item #
Price
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Grade 5 (USS) & (SAE) Hex Head Cap Screw 80 Hole Bin Assortment (1/4" - 5/8")
Carbon Steel
Zinc Plated
USS
3,000
1
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Grade 5 (USS) Hex Head Cap Screw 80 Hole Bin Assortment (1/4" - 5/8")
Carbon Steel
Zinc Plated
USS
2,795
1
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Grade 5 (USS) Hex Head Cap Screw 80 Hole Bin Large Assortment (1/4" - 3/4")
Carbon Steel
Zinc Plated
USS
3,775
1
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Grade 5 (USS) Hex Head Cap Screw 80 Hole Bin Small Assortment (1/4" - 3/4")
Carbon Steel
Zinc Plated
USS
1,910
1
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Storage Type: 120-Hole Bin

Name Material Finish Measurement Type Number of Pieces Package Qty Item #
Price
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Grade 5 (USS) Hex Head Cap Screw 120 Hole Bin Assortment (1/4" - 3/4")
Carbon Steel
Zinc Plated
USS
3,460
1
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Storage Type: Refill Kit

Name Material Finish Measurement Type Number of Pieces Package Qty Item #
Price
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Refill Kit for Grade 5 (USS) & (SAE) Hex Head Cap Screw Assortment (1/4" - 5/8")
Carbon Steel
Zinc Plated
USS
3,000
1
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Refill Kit for Grade 5 (USS) Hex Head Cap Screw 80 Hole Bin Assortment (1/4" - 5/8")
Carbon Steel
Zinc Plated
USS
2,795
1
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Refill Kit for Grade 5 (USS) Hex Head Cap Screw Bin 120 Hole Bin Assortment (1/4" - 3/4")
Carbon Steel
Zinc Plated
USS
3,460
1
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Grade 5 (SAE) Hex Head Cap Screw Assortments
Grade 5 (SAE) Hex Head Cap Screw Assortments
Grade 5 hex head cap screw assortments made from carbon steel with zinc plating and fine SAE threads. Marked with three radial lines, washer face under head and chamfered tip for faster assembly. Meets American standards and IFI specs; suitable for general maintenance and assembly.
Storage Type: 24-Compartment Drawer

Name Material Finish Measurement Type Number of Pieces Package Qty Item #
Price
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Grade 5 Hex Head Cap Screw Assortment (1/4" - 3/8")
Carbon Steel
Zinc Plated
SAE
720
1
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Storage Type: 40-Hole Bin

Name Material Finish Measurement Type Number of Pieces Package Qty Item #
Price
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Grade 5 (SAE) Hex Head Cap Screw Assortment (1/4" - 1/2")
Carbon Steel
Zinc Plated
SAE
1,835
1
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Storage Type: 80-Hole Bin

Name Material Finish Measurement Type Number of Pieces Package Qty Item #
Price
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Grade 5 Hex Head Cap Screw Assortment (1/4" - 3/4")
Carbon Steel
Zinc Plated
SAE
1,910
1
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Grade 5 Hex Head Cap Screw Assortment (1/4" - 5/8")
Carbon Steel
Zinc Plated
SAE
2,795
1
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Large Grade 5 Hex Head Cap Screw Assortment (1/4" - 3/4")
Carbon Steel
Zinc Plated
SAE
3,375
1
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Storage Type: Refill Kit

Name Material Finish Measurement Type Number of Pieces Package Qty Item #
Price
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Refill Kit for Grade 5 (SAE) Hex Head Cap Screw Assortment (1/4" - 1/2")
Carbon Steel
Zinc Plated
SAE
1,835
1
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Refill Kit for Grade 5 (SAE) Hex Head Cap Screw Large Assortment (1/4" - 3/4")
Carbon Steel
Zinc Plated
SAE
3,375
1
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Refill Kit for Grade 5 (SAE) Hex Head Cap Screw Small Assortment (1/4" - 3/4")
Carbon Steel
Zinc Plated
SAE
1,910
1
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130 of 732 Results

Kimball Midwest offers a comprehensive selection of Grade 5 Hex Head Cap Screws, ideal for applications requiring high strength and reliability. Our hex cap screw bolts are marked with three radial lines to identify their Grade 5 rating, ensuring they meet American standards and Industrial Fastener Institute requirements. These hex head bolts are designed with a washer face under the head, providing a smooth bearing surface for optimal performance during assembly. The chamfered tip allows for easy and efficient installation. 

Our hex head cap screws are available in zinc-plated finishes for enhanced durability and corrosion resistance. These fasteners are perfect for a variety of industrial applications, offering strength and reliability for both light and heavy-duty projects. Alongside hex cap screws, we offer complementary components such as hex nuts, ultra-lock nuts, flat washers and split lock washers to meet all your fastening needs. 

For fully threaded applications, we also provide fully threaded hex head tap bolts, designed with similar specifications to our cap screws. Available in various sizes, these hex screws and bolts offer a versatile solution for fastening and assembly. All of our Grade 5 hex head cap screws and hex bolt screws are made in the USA. 

Contact a local sales representative today to get the hex head bolts you need

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