Flange Bolt – Strong and Secure Fastening Solution

Flange bolts are a type of fastener with an integrated washer-like flange under the head. They provide a larger bearing surface, which helps distribute pressure more evenly, making them ideal for applications requiring a secure and durable connection.

Key Features of Flange Bolts

  • Built-in flange – Acts as a washer, reducing the need for separate washers.
  • High-strength fastening – Designed to withstand heavy loads and vibrations.
  • Variety of materials – Available in stainless steel, galvanized steel, and titanium.

Common Uses of Flange Bolts

ApplicationPurpose
Automotive industryUsed in engine assemblies, chassis, and suspensions
ConstructionSecuring steel structures, bridges, and infrastructure
Machinery & EquipmentProvides a secure fastening for rotating and vibrating components
AerospaceHigh-strength applications where reliability is critical

Standard Flange Bolt Dimensions

Thread SizeFlange Diameter (mm)Head Height (mm)
M612-14 mm6 mm
M816-18 mm8 mm
M1020-22 mm10 mm
M1224-26 mm12 mm
M1630-34 mm16 mm

Types of Flange Bolts

TypeDescription
Standard Flange BoltUsed for general fastening applications
Serrated Flange BoltFeatures serrations under the head for better grip and anti-loosening properties
Metric Flange BoltDesigned according to metric specifications for precise fitting
High-Strength Flange BoltUsed in heavy-duty applications like construction and automotive industries

How to Choose the Right Flange Bolt

  1. Material Selection – Stainless steel for corrosion resistance, high-strength steel for heavy loads.
  2. Thread Type – Ensure compatibility with the corresponding nut or threaded hole.
  3. Flange Type – Serrated flange bolts prevent loosening due to vibrations.
  4. Load Capacity – Choose the correct grade for the intended application.

Flange bolts are an excellent choice for secure, vibration-resistant fastening in various industries. Their built-in flange ensures a stronger, more stable connection, making them a reliable alternative to standard bolts and washers.

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