Countersunk Head Wood Screws
Product Overview
This product is an SS316 (A4-grade) stainless steel Torx small countersunk head wood screw with a nib point, specifically designed for wood structure connections in outdoor and highly corrosive environments. With a diameter of 10G (approximately 4.8mm) and lengths ranging from 50mm to 65mm, it features a T20 Torx drive head, combined with a self-tapping nib point and cutting flutes. It is an ideal fastener for treated-wood decks, boardwalks, landscape projects, and similar applications.
Product Applications
Outdoor treated-wood projects: Fixing of boards for treated-wood decks, patios, boardwalks, and timber platforms, suitable for outdoor panels with thicknesses of 19–25mm.
Landscaping and garden facilities: Installation of wooden components such as cabins, pavilions, fences, pergolas, and outdoor tables and chairs.
Coastal and high-humidity environments: Wood structure connections in areas with severe salt-spray corrosion, including docks, coastal boardwalks, and island landscapes.
Marine and waterfront facilities: Fastening of wooden parts on small boats, floating platforms, and similar applications (meeting marine-grade corrosion resistance requirements).
Product Features
Marine-grade corrosion resistance: Made of SS316 (A4-grade) stainless steel, it resists salt spray, acids, and alkalis, ensuring long-term rust-free and breakage-free performance in coastal and humid environments.
Efficient splitting prevention: The self-tapping nib point with cutting flutes allows easy driving into wood without pre-drilling, significantly reducing the risk of splitting in hardwoods and making installation more effortless.
Secure and aesthetically pleasing: The T20 Torx drive ensures uniform torque transmission, reducing slippage and cam-out; the small countersunk head design allows the screw to be fully embedded into the wood surface after installation, leaving a smooth, snag-free finish.
High pull-out resistance and anti-loosening: The matched thread profile and the high-toughness stainless steel material provide tight engagement, ensuring resistance to loosening over prolonged use caused by vibration or thermal expansion and contraction.
| Material | 316 stainless steel |
| Surface treatment | Pickled and passivated |
| Head type | Small countersunk |
| Slot type | Torx recess |
| Thread type | Two-stage thread |
| Screw diameter | Approx. 4.8mm |
| Screw length | Optional (50mm to 65mm) |
| Screw type | Wood screw |
| Corrosion resistance | High (suitable for outdoor preservative-treated wood, seaside boardwalks, and high-humidity environments) |
| Applicable tools | Torx screwdriver or power tools |

+86 15856352820

malingfei@linghongscrew.com

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