Hillman 3/4 in. Diameter x 3 in. Length Heat-Treated Steel Hex Head Cap Screw, 20-Pack
SKU: 5330290495

Hillman 3/4 in. Diameter x 3 in. Length Heat-Treated Steel Hex Head Cap Screw, 20-Pack

Sale price$98.35 Regular price$109.28
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Description

Hillman 3/4 in. Diameter x 3 in. Length Heat-Treated Steel Hex Head Cap Screw, 20-PackHillman 3 4 in. x 3 in. Grade 8 Hex Head Cap Screws (20 Pack) Heavy duty hex head cap screws crafted from heat treated steel for high strength fastening. Grade 8, coarse thread bolts ideal for machinery, automotive, and structural applications requiring reliable clamping force. Key Features: High Strength Grade 8: Heat treated steel delivers superior tensile strength for demanding applications Coarse Thread: Provides strong hold and easier starts in

Hillman 3/4 in. x 3 in. Grade 8 Hex Head Cap Screws (20-Pack)

Heavy-duty hex head cap screws crafted from heat-treated steel for high-strength fastening. Grade 8, coarse-thread bolts ideal for machinery, automotive, and structural applications requiring reliable clamping force.


Key Features:

  • High Strength Grade 8: Heat-treated steel delivers superior tensile strength for demanding applications
  • Coarse Thread: Provides strong hold and easier starts in tapped holes or with nuts
  • Hex Head with Washer Face: Designed for secure wrench or drill tightening and improved load distribution
  • 3/4 in. Diameter x 3 in. Length: Common size for machinery and structural assemblies
  • 20-Pack Convenience: Boxed packaging ensures you have enough fasteners for larger projects

Specifications Table:

Specification Details
Diameter 3/4 in
Length 3 in
Material Heat-treated steel
Grade Grade 8
Head Type Hex head with washer face
Thread Type Coarse
Threading Partially threaded
Finish/Style Heat Treated
Units per Package 20 pack
Packaging Boxed
Each Weight 9.699 lb (package)

Frequently Asked Questions (FAQ):

Q: What tools are needed to install these screws?
A: Tighten using a wrench or a drill with the appropriate hex socket.


Q: Are these fully threaded?
A: They are partially threaded, typical of hex head cap screws for high-strength clamping.


Q: What grade are these bolts?
A: Grade 8 heat-treated steel for high tensile strength.


Q: What thread type do they use?
A: Coarse thread.


Q: Are nuts and washers included?
A: No, this listing is for the screws only.


Industrial Strength with Refined Utility

This robust hex cap screw introduces a confident, engineered presence—its faceted head and golden steel finish bring a subtle industrial polish. I love the precise washer-faced head; it sits flush and clean, elevating even utilitarian assemblies. Style it with matte black hardware and raw oak details to balance grit with warmth. It’s the small, impeccable fastener that makes luxe, lasting construction feel effortless.


Choose these Grade 8 Hillman cap screws for dependable, high-strength fastening on your next project.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 5330290495

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Megan Cusack
Bozeman, US
★★★★★ 5
Love these floating shelves!
Color: Oak, Number Of Shelves: 2, Size: 36"W x 6.5"D
These shelves are perfect for my kitchen! They were easy to install. All the hardware was included. They are durable and sturdy and gave my kitchen wall an instant face lift!
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Reviewed in the United States on April 14, 2026
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A. Tucker
Lexington, US
★★★★★ 3
Holes in brackets are not spaced for studs!
Color: White, Number Of Shelves: 2, Size: 67"W x 6.5"D
So the quality of this not great, but good enough and they look nice enough on the wall. However, the bracket holes are not spaced at 16" intervals. WTF? I'm not sure who designed this thing. The molly plugs that came with it look OK, but to play it safe I used a cobalt steel drill bit and made my own holes in the bracket. Easy enough with some wd40. My other pick with this is that the screws to anchor the shelf to the bracket are black and and very obvious... they should have supplied some kind of cap.
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Reviewed in the United States on January 31, 2026
J
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Judy
Port Orchard, US
★★★★★ 5
Great purchase
Color: Ink Black, Size: 2 pack
The set is sturdy, easy to assemble and are visually pleasing. Great value for the money.
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Reviewed in the United States on May 12, 2026
B
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bradley e.
Grantham, US
★★★★★ 5
Sturdy and Nice
Color: Ink Black, Size: 2 pack
Very Sturdy and good looking
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Reviewed in the United States on March 28, 2026
K
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KAREN MARIE
Phoenix, US
★★★★★ 5
Great value!
Color: Ink Black, Size: 2 pack
Really sturdy and a great value for the money. Almost idiot proof when putting it together, too. The drawing is very specific, and everything is really well marked and numbered. This isn’t fine furniture, but it really is a great value for the money!
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Reviewed in the United States on January 19, 2026

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