2025-09-05
As a manufacturer with extensive experience in fastener production, we specialize in providing fully customizable round head bolts tailored to meet specific project requirements. Customization is not just an option; it’s a critical service for industries that demand precision, durability, and compatibility.
Whether you need round head bolts for automotive, construction, machinery, or marine applications, we offer end-to-end customization covering dimensions, material, finish, and performance attributes.
Below are the primary parameters we customize based on client needs:
1. Dimensions and Specifications
Diameter: M2 to M48 (metric) or #0 to 2" (imperial)
Length: 5mm to 500mm
Thread Type: Fine, coarse, full or partial threading
Head Height and Diameter: Adjusted per assembly clearance requirements
2. Material Selection
Different environments require different materials. We offer:
Stainless Steel (A2/A4)
Carbon Steel (Grade 4.8 to 12.9)
Alloy Steel
Brass
Titanium
Aluminum
3. Surface Treatment
Enhance corrosion resistance and appearance with:
Zinc Plating
Hot-Dip Galvanizing
Black Oxide
Chrome Finish
Dacromet Coating
Phosphating
4. Performance and Certification
Strength Grades: 4.8, 8.8, 10.9, 12.9
Certifications: ISO 9001, DIN, ANSI, ASTM compliant
Testing: Salt spray, torque tension, hardness, and fatigue testing
To help you understand what’s possible, here’s a breakdown of typical customizations for round head bolts:
Feature | Standard Options | Custom Options |
---|---|---|
Head Type | Round head (standard) | Domed, low-profile, or slotted round head bolts |
Drive Type | Phillips or Slotted | Hex socket, Torx, square, or custom drive |
Thread Type | ISO metric or UNC | Whitworth, BSW, left-hand thread, or self-tapping |
Material | Steel or stainless steel | Super alloys, non-magnetic materials, high-temp variants |
Coating/Finish | Zinc-plated or plain | Custom colors, lubricated coatings, anti-corrosion treatments |
Packaging | Standard cartons | Labeled, barcoded, or industry-specific kitting |
Off-the-shelf fasteners often fall short in specialized applications. Custom round head bolts ensure:
Perfect Fit: Designed to exact specifications for your assembly.
Enhanced Performance: Tailored material and treatment improve corrosion resistance, strength, and lifespan.
Cost Efficiency: Reduce waste and assembly time with purpose-built fasteners.
Compliance: Meet industry-specific standards (e.g., automotive, aerospace, food machinery).
These bolts are used in a wide range of industries:
Automotive: Engine assemblies, chassis systems
Construction: Structural connections, façade installations
Electronics: Device housing, internal mounting
Marine: Boat building, dock equipment
Heavy Machinery: Agricultural, mining, and industrial equipment
We provide prototyping and small-batch production for testing, along with full-scale manufacturing. Share your drawings, specifications, or application needs, and we’ll deliver round head bolts that match your exact requirements.
If you are very interested in Hebei Dongshao Fastener Manufacturing's products or have any questions, please feel free to contact us.