Steel Pozi Countersunk Black Jax Screws

Black japanned (Jax) pozi countersunk woodscrews provide the same reliable twinthread woodscrew performance as a standard zinc-plated screw, but in a black japanned finish that suits dark timber joinery, black ironmongery hardware fitting, and any application where a silver screw head would stand out against a dark material or finish. At the DIY Hardware Store, our black Jax countersunk woodscrews are the finish choice for period-appropriate hardwood fittings, black cast iron hardware, and timber work where a traditional black fixing is the correct specification.

The black japanned (also written japaned or blackjack) finish is a heat-treated lacquer coating that provides a flat, matte black appearance with moderate corrosion resistance for internal use. It's the traditional finish for hardware fixings in period properties and for securing black antique ironmongery - a zinc-plated screw head standing out against a black lever handle or antique hinge face is a detail that marks a less considered installation. The black Jax finish ensures the fixing blends with the hardware it's securing.

  • Black japanned finish blends with black and dark ironmongery
  • Traditional finish for period property and heritage installations
  • Pozi countersunk twinthread for general timber fixing
  • Suitable for hardwood and softwood applications
  • Correct choice for black cast iron and antique hardware fitting
  • Available as singles in standard woodscrew sizes