Button Head Self-Tapping Screws
Product Overview
This product is a cross-recessed button head flat point screw in size 4.2×13, made of carbon steel with a heat-treated version for increased hardness. It features a flat point tip design. This screw is suitable for general fastening applications where a low-profile head and flat point engagement are required.
Product Applications
Sheet metal chassis and equipment enclosures that are to be painted or powder-coated after assembly;
Assembly of sheet metal and plastic combinations inside dry, enclosed electrical devices and industrial power supplies;
Automated assembly products that are completed and shipped on the same day without long-term storage;
Fastening of thick-wall plastic housings in smart home and industrial applications.
Usage Notes: This product has no rust-proof coating. It must NOT be used in humid, outdoor, or exposed screw locations. During storage, it must be kept in vacuum-sealed packaging with desiccant.
Product Features
Button Head Design: Low-profile head provides a neat appearance and reduces surface protrusion; cross-recess allows for convenient installation and removal.
Flat Point Tip: The flat point end is designed for applications where bottoming or positioning against a flat surface is needed, offering reliable engagement in blind holes or thin materials.
Heat-Treated Carbon Steel Substrate: The heat treatment process enhances core hardness and strength, reducing the risk of breakage or thread stripping during installation.
No Corrosion Coating: This product is supplied without any rust-preventive treatment. It is intended for indoor, dry-environment use only.
| Material | Carbon steel |
| Surface treatment | None, heat treatment only |
| Head type | Button head |
| Slot type | Cross recess |
| Thread type | Full thread |
| Screw diameter | Approx. 4.2mm |
| Screw length | 13mm |
| Screw type | Self-tapping screw |
| Corrosion resistance | Low (suitable for indoor dry environments) |
| Applicable tools | Cross screwdriver or power tools |

+86 15856352820

malingfei@linghongscrew.com

No. 56, Baishizhan Road, Economic Development Zone, Langxi County, Xuancheng City, Anhui Province, China
