Countersunk Head Wood Screws
Product Overview
This product is a professional wood screw made of A2 (SS304) stainless steel, with lengths covering 38–75mm. Featuring a partial thread shank, a countersunk head with cutting ribs, and a #2 square recess drive, it is specifically designed for joining two layers of timber. Made of solid stainless steel without any electroplated coating, it offers excellent rust resistance while balancing installation efficiency, fastening strength, and surface finish. It is a versatile fastening accessory for both interior decoration and outdoor woodworking.
Product Applications
Assembly of two‑layer timber components, such as indoor solid wood furniture, cabinets, tables, chairs, and shelving.
Fixing outdoor preservative‑treated timber boardwalks, fences, planter boxes, and courtyard wooden landscapes.
Construction of interior timber joists, wall panelling, wood flooring substrates, and suspended ceiling frameworks.
Processing and assembly of engineered panels, including plywood, OSB, and MDF.
Tip: This screw's partial thread design is primarily intended for splicing two layers of timber. For coastal environments with high salt‑spray corrosion, SS316 stainless steel screws are recommended.
Product Features
SS304 Stainless Steel Material: Moisture‑ and rust‑resistant for both indoor and outdoor use. It offers good toughness, is not prone to breakage, and will not rust or stain timber over long‑term service.
Countersunk Head with Ribs Design: Automatically cuts the countersink during driving, eliminating the need for pre‑countersinking. The screw head embeds fully into the board surface, reducing edge chipping and delivering a smooth, aesthetically pleasing finish.
#2 Square Recess Drive: Provides tight bit engagement, preventing slippage or bit disengagement even under high‑power drill operation. It facilitates labour‑saving batch installation and features good wear resistance in the recess.
Specialised Partial Thread Configuration: Features a smooth upper shank and coarse wood threads on the lower portion. When joining two layers of timber, it ensures a tight, gap‑free fit and reduces the risk of splitting in thinner boards.
Two Diameter Options with Multiple Lengths: Available in 38–75mm lengths to suit various timber thicknesses.
| Material | 304 stainless steel |
| Surface treatment | Pickled and passivated |
| Head type | Countersunk |
| Slot type | Square recess |
| Thread type | Half thread |
| Screw diameter | Approx. 4.2mm |
| Screw length | Optional (38mm to 75mm) |
| Screw type | Wood screw |
| Corrosion resistance | High (suitable for outdoor preservative-treated wood, seaside boardwalks, and humid environments) |
| Applicable tools | Square bit or power tools |

+86 15856352820

malingfei@linghongscrew.com

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