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Back To School Bulk 1/2"-20 Grade 8 Hex Cap Screws (fine Thread, Alloy Steel, Plain) - Why Pay More? [eyq7nJ6k]

$31.99 $102.99 -69%

Back To School Bulk 1/2"-20 Grade 8 Hex Cap Screws (fine Thread, Alloy Steel, Plain) - Why Pay More? [eyq7nJ6k]High-Strength Fasteners for Industrial, Structural, and Equipment UseFor applications requiring extreme durability and precision, trust 1/2"-20 Grade 8 Hex Cap Screws. Manufactured

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Back To School Bulk 1/2"-20 Grade 8 Hex Cap Screws (fine Thread, Alloy Steel, Plain) - Why Pay More? [eyq7nJ6k]

Back To School Bulk 1/2"-20 Grade 8 Hex Cap Screws (fine Thread, Alloy Steel, Plain) - Why Pay More? [eyq7nJ6k]

High-Strength Fasteners for Industrial, Structural, and Equipment Use

For applications requiring extreme durability and precision, trust 1/2"-20 Grade 8 Hex Cap Screws. Manufactured from high-strength alloy steel with a plain (uncoated) finish, these fasteners deliver superior performance in high-load conditions. Featuring fine-thread (UNF) technology, they offer greater clamping force and vibration resistance, making them ideal for heavy equipment, structural applications, and industrial machinery.

Note – PT = Partial Thread

Key Features

  • Diameter: 1/2 inch
  • Thread Size: 1/2"-20 – UNF (Fine) Thread
  • Length Options: Multiple lengths available for various applications
  • Thread Length: Fully or partially threaded, depending on total screw length
  • Wrench Size (Across Flats): Approximately 3/4 inches (standard hex head)
  • Material: Grade 8 high-strength alloy steel
  • Finish: Plain (uncoated) – suitable for applications that don’t require additional corrosion protection
  • Type: Hex Cap Screw
  • System of Measurement: Inch (Imperial / US)
  • Specifications: Meets ASTM B18.2.1 standards
  • Matching Nuts & Washers: 1/2"-20 Nuts & Washers Available Here

Bulk Ordering Advantages

Buying in bulk reduces your per-piece cost and ensures a steady supply of industrial-grade fasteners. These hex cap screws are ideal for steel fabrication, heavy equipment repairs, industrial construction, and large-scale mechanical applications.

Material Properties

  • Superior Load Capacity: Grade 8 alloy steel handles extreme torque and stress.
  • Plain Finish: Uncoated steel for cost-efficient, direct-use applications.
  • Fine Thread Strength: UNF threading provides greater clamping force and vibration resistance.

Ideal Applications

  • Heavy Machinery & Industrial Equipment
  • Steel Construction & Structural Reinforcement
  • Bridge & Infrastructure Projects
  • Mining, Oil & Gas Industry
  • Maintenance, Repair & Overhaul (MRO)

Why Choose Monster Bolts?

Since 2012, Monster Bolts has been the go-to supplier for high-strength industrial fasteners, offering:

  • Top-Quality Materials: All screws meet ASTM B18.2.1 specifications.
  • Competitive Bulk Pricing: Save more on high-volume orders.
  • Fast Shipping & Large Inventory: Minimize project delays with ready-to-ship stock.
  • Expert Support: Our team can assist with product selection and bulk purchasing.

Installation Tips

  • Use an appropriately sized wrench or impact socket to prevent head damage.
  • Lubricate and clean threads before installation for accurate torque application.
  • Pair with Grade 8 nuts and washers for maximum load distribution and joint integrity.

Note: Nuts and washers are sold separately.

Order in Bulk & Save

Secure your supply of 1/2"-20 Grade 8 Hex Cap Screws today. Perfect for heavy construction, industrial assembly, and mechanical applications. Order now and enjoy bulk discounts, fast shipping, and expert customer service.

✔️ Best for industrial, structural, and heavy machinery projects

✔️ Fine-thread UNF design for superior clamping strength

✔️ ASTM B18.2.1 compliant for guaranteed strength & durability

What Our Customers Say

January 22, 2026

Absolutely no complaints!

This product has become an essential part of my daily routine.

- Ryan T..

January 22, 2026

Absolutely no complaints!

This product is a brilliant piece of technology. Very smart.

- Julius J..

January 22, 2026

Absolutely no complaints!

It's a very solid and well-designed device. I am a definite fan.

- Kyro Y..

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