| Product Code | ALSA0570024 |
| Description | Large Flat-Head Torx Screw |
| Specifications | 6x18.5 |
| Material | 10B21 |
| Surface Treatment | Black Zinc-Nickel Alloy + Waxed |
| Application Industries | Automotive |
The Large Flat-Head Torx Screw 6x18.5 is an automotive fastening component designed for applications that require reliable fastening, a low-profile head design, and a secure Torx drive connection. Manufactured from 10B21 steel and finished with a black zinc-nickel alloy coating with wax, this Torx screw is suitable for automotive assembly and other fastening applications where material strength, surface protection, and consistent installation are important.
With its large flat-head design, this screw provides a broad head-bearing surface for contact with the assembled component. The Torx drive helps transfer installation torque through the matching driver, supporting controlled fastening during assembly and maintenance.
For automotive manufacturers, component suppliers, and industrial fastener distributors, the ALSA0570024 provides a defined specification for sourcing a suitable fastening solution. Custom requirements for dimensions, coating, packaging, and other product details can be discussed according to your application needs.
| Product Code | ALSA0570024 |
| Description | Large Flat-Head Torx Screw |
| Specifications | 6x18.5 |
| Material | 10B21 |
| Surface Treatment | Black Zinc-Nickel Alloy + Waxed |
| Application Industries | Automotive |
The large flat-head structure provides a wider bearing surface than a conventional smaller-head design. Depending on the mating component and installation requirements, this configuration can help distribute clamping loads over a larger contact area.
It is suitable for assemblies where head coverage, component contact, and installation space are important design considerations. The final suitability depends on the screw's head dimensions, the mounting surface, and the requirements of the specific application.
The Torx drive features a star-shaped recess that engages with a compatible Torx driver. Its geometry supports effective torque transfer when the driver and recess are properly matched.
For automotive assembly lines and industrial production, a suitable Torx connection can help maintain consistent installation practices and reduce the risk of driver slippage compared with an improperly matched drive system.
The exact Torx size should be verified before selecting installation tools.
This product uses 10B21 steel, a boron-containing steel grade commonly used in the production of cold-formed fasteners. Its suitability for a specific fastening application depends on the manufacturing process, heat treatment, finished mechanical properties, and applicable technical requirements.
For automotive buyers, material traceability and mechanical property verification are important when selecting fasteners for production assemblies. Relevant documentation and testing requirements should be confirmed with the supplier according to the intended application.
The surface treatment combines a black zinc-nickel alloy coating with a waxed finish. Zinc-nickel coatings are used to improve corrosion resistance, while the black finish provides a consistent appearance for suitable industrial applications.
The waxed finish may also influence friction during installation. Because coating thickness, wax formulation, and application conditions can affect performance, buyers should specify their corrosion resistance targets and any required friction or torque-tension testing.
For automotive applications, the coating system should be validated against the relevant OEM specifications and operating environment.
The Large Flat-Head Torx Screw is intended for the automotive industry. Potential application areas depend on the final design, dimensions, mechanical properties, and customer approval requirements.
Typical areas for evaluating this type of fastener include:
Automotive component assembly: Fastening compatible brackets, mounting components, and supporting structures where the head geometry meets the design requirements.
Interior and exterior components: Securing selected vehicle components when the required load capacity, environmental resistance, and dimensional fit have been verified.
Automotive parts manufacturing: Supporting repeatable fastening operations in production environments using compatible Torx tools.
Automotive spare parts supply: Providing a specified fastener for replacement or aftermarket component assemblies when the original requirements are confirmed.
The screw should not be assumed suitable for safety-critical, high-load, or structural applications without the necessary engineering evaluation and qualification.
Automotive fasteners must meet defined dimensional, mechanical, and surface-finish requirements. When sourcing a Large Flat-Head Torx Screw, buyers should consider the following quality checkpoints.
Critical dimensions may include thread diameter, overall length, head diameter, head height, drive geometry, and thread specifications. Inspection criteria should follow the approved drawing and agreed tolerances.
The 10B21 steel grade should be verified against the purchasing specification. Where required, material certificates, hardness testing, tensile or other mechanical testing, and heat-treatment records can support quality assurance.
The black zinc-nickel alloy coating should be assessed against the agreed coating specification. Relevant checks may include coating thickness, appearance, adhesion, corrosion resistance, and any customer-defined testing requirements.
The Torx recess and waxed surface finish should be evaluated under the intended assembly conditions. Torque-tension performance, friction consistency, and tool compatibility may be important for automated automotive fastening processes.
For volume purchasing, consistent dimensions, surface treatment, and batch identification help support incoming inspection and production quality control. Buyers can define inspection plans, sampling requirements, and documentation expectations before order confirmation.
A Large Flat-Head Torx Screw is a fastener featuring a broad flat-style head and a star-shaped Torx drive recess. Its suitability depends on the head geometry, thread design, material properties, and requirements of the assembly.
The ALSA0570024 is specified as 10B21 steel. The final mechanical properties depend on the manufacturing and heat-treatment processes and should be confirmed against the product specification.
The specified surface treatment is black zinc-nickel alloy coating with wax. The required coating thickness, corrosion resistance, and friction characteristics should be confirmed for the intended application.
The product is designated for the automotive industry. Final suitability depends on the installation location, mechanical loading, environmental exposure, dimensional compatibility, and applicable automotive requirements.
The product specification is listed as 6 × 18.5. The precise interpretation of these dimensions should be confirmed using the approved technical drawing, including the relevant diameter and length measurement conventions.
Bulk purchasing requirements can be discussed with the supplier. Provide the required quantity, technical specifications, quality documentation needs, and packaging preferences to support an accurate quotation.
Looking for a Large Flat-Head Torx Screw for your automotive fastening application? Share your technical drawing, required quantity, and performance requirements to confirm product compatibility and purchasing details.
For product inquiries, bulk orders, or customized fastener requirements, contact our team to discuss your application and sourcing needs.
| Product Code | ALSA0570024 |
| Description | Large Flat-Head Torx Screw |
| Specifications | 6x18.5 |
| Material | 10B21 |
| Surface Treatment | Black Zinc-Nickel Alloy + Waxed |
| Application Industries | Automotive |
We are a specialized manufacturer of non-standard/ standard cold heading screws, bolts, studs, rivets, CNC lathe parts, and other metal fasteners.
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