6.5mm x 50mm Chrome Plated Pan Square (SQ2) Wall Katt Universal Screw Anchor

About Universal Screw Anchors

Hobson Engineering universal concrete screw anchors. Mechanically expand inside the hole as the captive screw is driven home, gripping both solid concrete and hollow brick or block. The universal design removes substrate-type guesswork at quoting time. Suits handyman jobs, light-duty fix-outs and properties with mixed wall constructions.

Frequently Asked Questions

How to Measure

Screw anchor sizing The M-size is the screw body diameter (M6 needs a 6mm masonry drill bit). The length is the OVERALL length from tip to under-head; flush-finishing countersunk and dome heads include the head height in the length figure. Drill depth should be 5-10mm deeper than the screw length to allow for debris. Confirm the cut-thread length exceeds the fixture thickness so the thread engages the substrate, not the air gap inside the fixture.

Still not sure? See our step-by-step identification guide for help measuring your fastener.

Resources

About the Brand

Hobson · Hobson Engineering · Australian

Hobson Engineering is a major Australian fastener and tooling supplier, established over 80 years and operating from Sydney with a national distribution footprint. Hobson manufactures and imports its own range of driver bits, hex keys, nutsetters and security driving accessories.

Range: Hobson's Driving range covers Phillips, Hex, Torx, Square and Slot insert bits, magnetic nutsetters, post-hex security Allen keys, snake-eye and pin-in-Torx security driver bits, and 1/4 inch hex shank quick-change bit holders.

Positioning: Trade-grade tooling backed by a long-established Australian engineering supply chain. Often paired with Hobson fastener stock where a single-source supplier is preferred.

Pricing & Delivery

Includes GST, a Tax Invoice and Free Standard Delivery anywhere in Australia.

Buy with Confidence

15+ years selling online · 25,000+ stock lines · 200 million pieces ex-stock in Brisbane QLD.

Disclaimer

Technical data Researched and compiled from numerous industry sources for the sole purpose of providing basic information. All material is advisory only and its use by anyone is entirely voluntary. Reliance on it for any purpose by anyone is at the sole risk of that person, and Bolt and Nut Australia is not responsible for any loss, claim or damages arising therefrom. In developing this information, Bolt and Nut Australia has made a determined effort to present it accurately.

Measurements Sizes are taken from supplier catalogues or hand-measured and should be used as a guide. Minor variation between batches is normal. Stock is sourced from various suppliers, so differences may exist between batches in markings, appearance or finish.

Product Photos & PDF Data Sheets Represent the product type, not exact size. PDFs are a reference guide only. Specifications may change without notice.

If you see any problems with any of our specifications or you require additional information please contact us.