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SKU: HBFG8ZY-58X2

5/8-18 x 2" Conquest Grade 8 Non-Serrated Fine Thread Flange Bolt - Zinc Yellow

5/8-18 x 2" Conquest Grade 8 Non-Serrated Fine Thread Flange Bolt - Zinc Yellow!

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SKU: HBFG8ZY-58X2

5/8-18 x 2" Conquest Grade 8 Non-Serrated Fine Thread Flange Bolt - Zinc Yellow

$3.54
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Specifications

Diameter: 5/8"
Length: 2"
Finish: Zinc Yellow
Head Type: Hex Head
Manufacturer name: Conquest Fasteners
Material: Alloy Steel
Quantity: 1
Thread Length: Fully Threaded
Thread type: Fine
Threads per inch: 18
Type: Grade 8
Additional Info: • SAE J429
• X9- ASTM Equivalent: A354 Grade BD
Description

5/8-18 x 2" Conquest Grade 8 Non-Serrated Fine Thread Flange Bolt with Yellow Zinc Finish

When pairing a nut with a hex bolt, the material and finish must match. If these do not match, the nut will not fit the bolt.

Conquest Grade 8 Indented Flange Bolts in 5/8" diameter are engineered to deliver superior strength, vibration resistance, and corrosion protection. Featuring an 18 TPI fine thread, integrated flange, and a yellow zinc finish, these bolts meet SAE J429 and ASTM A354 Grade BD standards, making them a go-to fastener for automotive, industrial, and heavy equipment applications.

5/8" Grade 8 Indented Flange Bolts – Fine Thread, Yellow Zinc, Washer-Free Design

Manufactured from high-strength alloy steel and heat-treated for durability, these bolts offer exceptional tensile and shear strength. The indented hex head ensures reliable tool engagement, while the flange design eliminates the need for a washer by evenly distributing clamping force. The yellow zinc plating adds an extra layer of corrosion protection for lasting performance in shop and field conditions.

Key Features

  • 5/8" Diameter Grade 8 Alloy Steel: Built to withstand extreme loads and frequent disassembly.
  • Indented Hex Head: Provides excellent wrench grip for fast and secure installation.
  • Integrated Flange: Distributes clamping force and removes the need for separate washers.
  • 18 TPI Fine Thread: Enhances vibration resistance and load retention in torque-sensitive assemblies.
  • Yellow Zinc Finish: Adds corrosion resistance and visibility for quick identification.
  • Meets SAE J429 / ASTM A354 Grade BD: Ensures compliance with automotive and industrial standards.
  • Applications: Ideal for suspension systems, heavy equipment, manufacturing, and off-road builds.

Common Applications

  • Heavy machinery assembly and maintenance
  • Automotive engine, frame, and suspension components
  • Industrial manufacturing equipment and fixtures
  • Agricultural and off-highway vehicle repairs
  • Structural assembly where high tensile strength is required

Installation Tips

  • Always torque to manufacturer specifications using a calibrated wrench
  • Pair with fine-thread nuts for optimal strength and engagement
  • Skip the washer, the integrated flange head handles pressure distribution

California Residents: WARNING

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× WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects and other reproductive harm. For more information visit: www.P65Warnings.ca.gov.

Customer Reviews

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L
Lisa

I thought they were quality made and worked as stated