Repair Systems — 03 — Facade & External Envelope
Sleeve torque-control mechanical wall tie
Supplier reference for sleeve torque-control mechanical remedial cavity wall ties for solid masonry facades on Class 2 strata buildings. Bolt-tightened sleeve expansion — torque is the key installation control. Solid masonry only. Compares Rawlplug, Würth, and Hilti HSA-R2 by grade, load data, and distribution.
Sleeve torque-control mechanical wall ties
Sleeve torque-control anchors use a bolt-tightened sleeve expansion mechanism — the bolt is torqued to a specified value to expand the sleeve against the bore hole walls. Consistent torque during installation is the key installation control parameter. Suitable for solid dense masonry only — never for hollow, perforated, or soft masonry. Structural engineer confirmation required for cavity wall tie replacement.
Supplier reference
3 of 3 suppliersRawlplug Stainless Sleeve Anchor (R-SL-A4)
Grade 316 stainless sleeve expansion anchor for structural masonry and cavity tie installation
Rawlplug R-SL-A4 is a Grade 316 stainless steel sleeve expansion anchor installed by drilling, inserting and tightening the bolt to expand the sleeve against the bore hole walls.
Würth Stainless Sleeve Anchor
Grade 316 stainless sleeve anchor for solid masonry anchoring with torque-controlled installation
Würth offers a range of Grade 316 stainless steel sleeve expansion anchors for structural masonry anchoring, suitable for remedial cavity wall tie installation in solid masonry substrates.
Hilti HSA-R2 Stainless Sleeve Anchor
Grade 316 stainless sleeve anchor with ETA approval and PROFIS design software support
Hilti HSA-R2 is a Grade 316 stainless sleeve anchor with ETA approval and PROFIS Anchor software design support for engineer specification in structural masonry anchoring.
| Supplier | Product | Grade | Installation | Load Data | Distribution | Key Feature | Primary Use |
|---|---|---|---|---|---|---|---|
| Rawlplug Australia | R-SL-A4 Sleeve Anchor | 316 (A4) | Torque-controlled | Supplier published | National (broad) | Broad availability | Standard solid masonry anchoring |
| Würth Australia | Würth Stainless Sleeve | 316 SS | Torque-controlled | Würth published | National branches | Trade branch network | Contractor-procured solid masonry |
| Hilti Australia | HSA-R2 Sleeve Anchor | 316 (A4) | Torque-controlled | ETA + PROFIS | National direct | ETA + design software | Engineer-specified structural anchoring |
Do not confuse sleeve torque-control ties with:
- Wedge expansion ties — cone-wedge mechanism (not sleeve) — different geometry and edge distance requirements — listed on the wedge expansion tie page
- Undercut expansion ties — high-load Hilti or Fischer undercut anchors with a keyed mechanical lock in an undercut profile — highest mechanical anchor capacity — listed on the undercut expansion tie page
- Resin anchor ties — vinylester or epoxy chemical anchors — suitable for softer masonry where sleeve expansion would fail — listed on the cavity ties — resin anchor page
- Helical grout-in ties — cementitious grouted helical ties — lower cost for standard residential masonry — listed on the cavity ties — helical page
- Stainless steel through-bolts — bolting through the full masonry leaf is a different structural intervention and is not a cavity tie replacement system
Disclaimer
This page provides general technical information only. Sleeve torque-control ties are only suitable for solid, dense masonry. Tie type, diameter, embedment, and spacing must be confirmed by a structural engineer. Calibrated torque wrench is required — hand-tightening does not achieve design load.