Stainless Steel Self-Tapping Screws
Product Overview
This product is an American standard #8GA square drive flat head self‑tapping screw, made of SS304 (A2) austenitic stainless steel, with standard supply lengths covering the full range from 12 mm to 50 mm, manufactured in accordance with US standard ASME B18.6.3 for self‑tapping screws. The product features a Robertson square drive recess + 80° tapered flat countersunk head structure, combined with a fully threaded sharp self‑tapping point. It can be directly fastened to wood, plastics, thin aluminium, and other substrates without pre‑tapping. The stainless steel substrate is passivated without any plating coating, offering a bright metallic finish that is smooth and corrosion‑resistant. It is a general‑purpose fastening accessory suitable for domestic and international furniture, timber structures, and decorative panel assembly, especially for export to European and American markets.
Product Applications
Panel / Solid Wood Furniture: Assembly of wardrobes, kitchen cabinets, and export‑oriented cabinet units, compatible with European and American assembly tools, balancing strength and appearance.
Outdoor Timber Structures: Preservative‑treated timber boardwalks, garden fences, balcony wood components, with long‑term outdoor use without rusting.
Home Decoration Projects: Fixing decorative panels, aluminium‑plastic panels, PVC boards, and panels in damp areas such as kitchens and bathrooms, preventing rust stains from contaminating the finish.
Light Component Assembly: Fastening thin aluminium sheets, plastic enclosures, small hardware parts, suitable for building materials and light equipment assembly.
Product Features
304 Stainless Steel Corrosion Resistance: A2 austenitic stainless steel has a built‑in passivated anti‑rust layer, resistant to rusting in humid indoor and outdoor rain‑exposed environments. There is no risk of zinc coating peeling off and contaminating the board. Good toughness prevents breakage during driving.
Square Drive Reduces Cam‑Out: The square recess provides tight engagement with the driver bit, capable of withstanding high torque, suitable for both manual and automated assembly. Compared to Phillips recess, it is more wear‑resistant, less prone to loosening under long‑term vibration, and offers higher installation efficiency.
American Standard Flat Head for Flush Installation: The 80° tapered flat countersunk head sits completely flush with the board surface after tightening, leaving no protrusions, ensuring a neat and clean decorative finish.
#8GA Coarse Thread for Strong Grip: With a standard wire diameter of 4.17 mm and sharp, wide‑pitch threads, it provides secure engagement and resists pull‑out. Available in 12–50 mm multiple lengths, suitable for both thin decorative panels and thick timber.
Sharp Point Self‑Tapping Simplifies Installation: The pointed cutting thread can directly tap into the board; for soft wood, no pre‑drilling is needed, streamlining the construction process.
| Material | 304 stainless steel |
| Surface Treatment | Wash white |
| Head Type | Countersunk |
| Slot Type | Square groove |
| Thread Type | Full thread |
| Screw Diameter | approx. 4.2mm |
| Screw Length | Optional (12mm to 50mm) |
| Screw Type | Self-tapping screw |
| Corrosion Resistance | High (suitable for humid, outdoor, mild acid-alkali environments) |
| Applicable Tools | Square bit or power tool |

+86 15856352820

malingfei@linghongscrew.com

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