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When fastening space is limited, a low-profile bolt head can make assembly cleaner and more practical. Our Hex Socket Flathead Carbon Steel Bolts are designed for applications requiring a flat or countersunk head, internal hex drive, and carbon steel construction. They are suitable for machinery, equipment assembly, fixtures, OEM production, and industrial maintenance worldwide.
As Alisa, Export Director at Hanyang Machinery with 10 years of industrial equipment export experience, I work with global distributors, OEM buyers, engineering contractors, and MRO procurement teams. We support standard and drawing-based bolt production, helping buyers confirm dimensions, thread specifications, material grade, strength requirements, and surface treatment before production.
| Item | Specification |
|---|---|
| Product Type | Flathead Hex Socket Bolt |
| Material | Carbon Steel |
| Head Type | Flat / Countersunk Head |
| Drive Type | Hex Socket |
| Thread | According to SKU / drawing |
| Diameter | According to SKU / drawing |
| Length | According to SKU / drawing |
| Strength Grade | According to confirmed specification |
| Surface Treatment | According to specification |
| Thread Standard | According to project requirement |
| Application | Machinery & Equipment Assembly |
| Production | Standard / Custom |
| Packaging | Bulk / Customized |
Technical Note: Exact head angle, diameter, length, thread standard, strength grade, surface treatment, and dimensional tolerances should be confirmed against the applicable drawing or purchase specification.
The flathead configuration is suitable for applications where the bolt head needs to sit flush or close to flush with the assembled surface after installation into a compatible countersunk hole.
The hex socket provides a compact drive interface and is useful where side access for conventional wrench-based fasteners is restricted.
Carbon steel provides a practical balance of strength, machinability, and cost for many industrial fastening applications. The appropriate grade should be selected according to the required mechanical performance and service environment.
The recessed head design can reduce protrusion above the working surface, making it useful for machinery panels, fixtures, brackets, and equipment components where clearance is important.
Industrial Machinery
Used for machinery components where a flush fastening point and internal hex drive are required.
OEM Equipment Assembly
Suitable for equipment manufacturers specifying repeatable bolt dimensions for production assemblies.
Fixtures and Jigs
The flathead design can help maintain a relatively smooth fixture surface and reduce interference with adjacent components.
Metal Fabrication
Applicable to compatible fabricated assemblies requiring countersunk fastening.
Equipment Maintenance
Suitable for MRO buyers and distributors sourcing replacement bolts according to existing dimensions and thread specifications.
General Industrial Assembly
Can be used in compatible applications where carbon steel strength and a compact fastening configuration meet the design requirements.
For industrial wholesalers, distributors, and fastener stockists, we support repeat procurement according to confirmed dimensions, material grades, surface treatment, packaging, and purchasing schedules.
For OEM production, machinery projects, equipment installation, and maintenance programs, bulk quantities can be supplied according to confirmed technical specifications and delivery requirements.
For non-standard applications, we can review customer drawings, samples, thread requirements, dimensions, strength grades, and surface treatments for customized production.
Hanyang Machinery provides engineering-oriented manufacturing for bolts, nuts, valves, flanges, pipe fittings, and custom-machined components.
Depending on the confirmed design, our support includes:
Drawing and dimensional review
Turning and machining
Thread processing
Surface finishing
Material selection
Sample and prototype support
Small-batch production
Volume production
Customized packaging
For an accurate quotation, please provide the bolt diameter, length, thread standard, head dimensions, strength grade, surface treatment, quantity, and drawing if available.
1. Engineering-Oriented Manufacturing
Our manufacturing capabilities support standard fasteners as well as drawing-based industrial components for OEM and replacement applications.
2. One-Stop Industrial Supply
Our product range includes bolts, nuts, flanges, valves, pipe fittings, steel pipes, sealing products, and custom-machined parts, helping global B2B buyers consolidate procurement.
3. Drawing-Based Customization
We can review customer drawings and samples and coordinate material, dimensions, threading, machining, and surface-treatment requirements.
4. Quality & Delivery Control
Pre-shipment inspection and responsive technical communication support consistent international orders and repeat procurement.
For broader industrial fastening and piping requirements, explore our **Stainless Steel
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