Hex Head Cap Screws Grade 8 Zinc Yellow Plated B1821BH 7/8-9 x 3 1/2
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Hex Head Cap Screws Grade 8 Zinc Yellow Plated B1821BH 7/8-9 x 3 1/2

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[25 PKG] Hex Head Cap Screws Grade 8 Zinc Yellow Plated B1821BH 7/8-9 x 3 1/2

Mutual ScrewSKU: B1821BH088C350N
Price:
$194.85per 25( $7.79 each)
Pieces 25
Measurement type Inch
Thread size 7/8-9
Diameter 7/8
Length 3-1/2
Material Steel
Grade Grade 8
Finish Yellow Plated
Head style Hex
Threads per inch 9
Thread style Partially Threaded
Weight 19.0 lb

WARNING: This product can expose you to chemicals including lead and lead compounds, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to https://www.P65Warnings.ca.gov.

Description

Hex Head Cap Screws Grade 8 Zinc Yellow Plated B1821BH 7/8-9 x 3 1/2 are high-strength fasteners designed for demanding assemblies where reliability matters. With Grade 8 steel and a zinc yellow plating, these screws deliver superior tensile strength and corrosion resistance for long-lasting performance in industrial environments.

Designed for durable, heavy-duty applications, these hex head cap screws provide a secure, clamp-ready connection suitable for machinery, automotive, and construction projects. The zinc yellow finish enhances corrosion resistance while offering easy visual identification in complex assemblies.

Key Specifications

  • Head Type: Hex Head
  • Size: 7/8-9 x 3 1/2
  • Material Grade: Grade 8 steel
  • Finish: Zinc Yellow Plated
  • Model / Part: B1821BH
  • Thread: 9 threads per inch (7/8" diameter)

Benefits

  • High strength: Grade 8 steel provides excellent tensile properties for demanding assemblies.
  • Corrosion resistance: Zinc yellow plating protects against corrosion in moderate environments.
  • Reliable performance: Precision manufacturing ensures consistent fit and clamping force.
  • Easy identification: Distinctive yellow finish helps with quick maintenance checks.

Applications

  • Machinery assembly and equipment maintenance
  • Automotive and heavy-duty vehicle construction
  • Industrial equipment and structural fastenings

Installation Tips

Use the appropriate tools to minimize head rounding and ensure proper torque. Verify correct thread engagement and follow standard bolting practices for Grade 8 fasteners to achieve optimal clamping force and longevity.

Can We Help?

If you’re not sure that this product is right for you, give us a call!
800-222-0324

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