Description

Black 316 Stainless Decking Screws Timber to Timber – 5.5x50mm

Get a sleek, modern finish with these black 316 stainless decking screws timber to timber applications. Designed for hardwood decking, they deliver strength, durability, and a premium look.

Available in 5.5x50mm in 1000 pack.


Designed for Hardwood Decking

Built for Australian hardwoods and demanding timber applications.

  • Ideal for decking and cladding to timber subframes
  • Suitable for Merbau, Spotted Gum, Blackbutt, Jarrah and more
  • Reliable performance in high-density timber

Fast Driving & Strong Grip

Engineered for efficiency and holding power.

  • Aggressive shank provides extreme grip
  • Reduced drive-in torque helps prevent snapping
  • Asymmetrical thread enables up to 30% faster installation
  • Anti-friction coating for smoother driving

Premium Black Finish in 316 Stainless Steel

Combines style with high-performance durability.

  • Black coated 316 stainless steel
  • Excellent corrosion and weather resistance
  • Ideal for outdoor and coastal environments
  • Modern finish to suit darker decking boards

Clean, Professional Finish

Perfect for visible decking areas.

  • Step/washer head sinks neatly into timber
  • Smooth head for a barefoot-friendly surface
  • Minimises surface damage and splintering

Precision Drive Performance

The SIT® drive (TX compatible) ensures consistent installation.

  • Excellent torque transfer
  • Fast centring for efficient fixing
  • Reduced cam-out

Reduced Splitting in Hardwood

The pyramid-shaped drilling tip protects your timber.

  • Minimises splitting and cracking
  • Faster drilling into hardwood
  • Cleaner finish across boards

Built for Harsh Outdoor Conditions

Made from 316 stainless steel, these screws are built to last.

  • Superior corrosion resistance
  • Suitable for coastal and high-moisture areas
  • Increased fracture torque for strength

Installation Tips

For best results:

  • Pre-drill and pre-countersink recommended
  • Essential for extremely hard timbers
  • Use a drill driver (not an impact driver)
  • Stop once the screw head is flush

Ideal Applications

  • Timber decking on timber frames
  • Hardwood cladding
  • Outdoor timber structures
  • Projects requiring a black architectural finish

Pro Tip

For high-traffic decking areas, the silver stainless finish may offer better long-term wear compared to coated options.


Why Choose AnchorMark S2-TTT Screws?

  • Premium 316 stainless steel construction
  • Designed for timber to timber decking
  • Strong hold in hardwood applications
  • Sleek black finish for modern projects
  • Fast install with reduced torque

Strong, stylish, and built for Australian conditions.
These decking screws deliver performance and design in one fixing.