Carbon Steel Self-Tapping Screws
Product Overview
This product is an American standard external hexagon flange head sharp point self‑tapping screw, specification 10‑24×25, precision forged from carbon steel substrate, with a CL3 zinc‑aluminum composite anti‑corrosion coating applied on the surface. The screw integrates an external hex drive head, integral flange washer, and sharp‑point self‑tapping thread form. With a #10 nominal diameter and 24 threads per inch coarse thread, total length 25 mm, it requires no matching nuts or washers, and can directly form internal threads by self‑tapping into wood, plastic, and thin sheet metal substrates. It is a general‑purpose fastening accessory suitable for import/export equipment, outdoor components, and sheet metal assembly, balancing installation efficiency with long‑term anti‑corrosion performance.
Product Applications
Industrial Equipment: Fixing enclosures for imported electrical control cabinets, sheet metal chassis, and instrument plastic housings.
Outdoor Building Materials: Photovoltaic bracket accessories, aluminium alloy doors and windows, HVAC ducts, timber joists, and decorative sheet metal panels.
Transportation and Agricultural Machinery: Assembly of automotive interior sheet metal, small agricultural machinery housings, and plastic parts.
Home Appliances and Furniture: Export‑oriented American‑style furniture, various appliance plastic casings, and wood panel splicing and fastening.
Product Features
Integral Flange Hex Structure: Compatible with socket wrenches, resistant to slipping under high torque; the built‑in flange increases the bearing surface, preventing crushing of thin panels, eliminating the need for washers, and providing better sealing.
10‑24 Coarse Thread with Sharp Point: The sharp tip ensures easy positioning; the coarse thread provides secure engagement and resists stripping, with high tapping efficiency.
Carbon Steel Heat‑Treated Substrate: Meets mechanical strength requirements, is cost‑effective, and suitable for bulk purchasing.
CL3 Zinc‑Aluminum Anti‑Corrosion Coating: Free from hydrogen embrittlement risk; the thin coating does not clog threads; salt‑spray rust resistance outperforms ordinary zinc plating, suitable for both indoor humid and outdoor conditions.
American Standard General Purpose: 10‑24 is an internationally recognized coarse thread specification, compatible with imported equipment and export product assembly needs.
| Material | Carbon steel |
| Surface Treatment | Mechanical galvanizing Grade 3 |
| Head Type | Hex head |
| Slot Type | External hexagon |
| Thread Type | Full thread |
| Screw Diameter | approx. 4.8mm |
| Screw Length | 25mm |
| Screw Type | Self-tapping screw |
| Corrosion Resistance | High (suitable for coastal, high-humidity environments) |
| Applicable Tools | Socket or electric wrench |

+86 15856352820

malingfei@linghongscrew.com

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