Threaded Bar 1m – A2 Stainless Steel – Pk 5

If you need a 1m stainless steel threaded bar that will still look decent after a few winters outside, A2 grade is the sensible starting point. It is a fully threaded length of bar, supplied in packs of five, with sizes running from M6 up to M20. The common sizes are all covered, so you can match the bar to the job rather than the other way round.

Most of what gets sold ends up in one of two jobs. The first is suspending cable trays, ducting, pipework and other services from ceilings, usually paired with drop-in anchors. The second is cutting the bar down and setting it into a hole with chemical resin to make a st fixing. Either way, the thread runs the full length, so you can cut anywhere along it and still have something to put a nut on.

Where A2 Stainless Steel Threaded Bar Gets Used

Stainless is not just a nicer-looking option. It is the correct choice wherever the environment is corrosive, or where the base material itself causes trouble. Think coastal buildings, swimming pool halls, food processing areas, car washes, external walkways and anything exposed to regular washdown or road salt. Zinc-plated bar in those conditions will start showing rust fairly quickly, and nobody enjoys going back to replace fixings that were meant to be permanent.

A2 stainless offers strong resistance to general corrosion and is a standard specification for external work. For most UK building and service installations, that is exactly what the drawings ask for. If you are working somewhere with heavy chloride exposure, such as right on the seafront, it is worth checking whether the specification calls for A4 instead.

Identifying the Bar on Site

The ends of each bar are marked green. That is not decoration. It lets you tell A2 stainless apart from other grades at a glance, which matters when a site has mild steel, zinc-plated and stainless bar all stacked in the same corner. Mixing grades is how you end up with galvanic corrosion and awkward conversations, so a quick visual check helps.

At 1m long, the bar is easy to carry, easy to store in a van and quick to cut with a hacksaw, angle grinder or bandsaw. A pack of five gives you enough for a small run of fixings without having to commit to a full bundle. Cut ends should be cleaned up with a file so the nut runs on smoothly, and a small dab of anti-seize on the thread helps prevent galling, which stainless is prone to when tightened quickly.

Pick your size based on the load and the anchor or resin system you are using. M8 and M10 handle most light services. M12 and M16 are common for heavier trays and structural brackets. M20 is there when you need it. Always check the anchor or resin manufacturer’s data for embedment depth and permitted loads, as these vary between systems.