Blockwork accessories

Blockwork accessories

Cramps and ties – head, tail and shank options

Made-to-order wall ties and cramps assembled from coded head, shank and tail options, with lengths selected to suit the cavity.

Head ends: L-angle slotted/hole, channel (RCH/SCH, CCH, DCH), bolt/screw fixing
Tail ends: Fishtailed, split tang, turned down, dowel, corrugated, holes
Shanks: Plain, drip, dimpled, twisted
Section: 20–30 × 2.0 mm
Codes: e.g. B/P/30, B/D/99, C/C/30

Catalogue p. 62

Blockwork accessories

Block tie corrugated with bolt screw fixing (frame cramp)

Frame cramp and channel tie with a 7 mm hole or 8 × 30 mm slot for fixing to concrete, steelwork or masonry.

Material: Galvanised, mild steel or stainless steel A4
Sizes: 20–50 × 30–75 × 150–200 mm
Thickness: 1.5–3.0 mm
Safe working load: approx. 1 kN (fixed at lowest point of slot)

Catalogue p. 65

Blockwork accessories

Three-hole block tie

L-shaped block tie with three holes in the tail for bonding into mortar joints.

Material: Galvanised · stainless steel A4 / A6
Sizes: 20–30 × 30–50 × 150–300 mm
Thickness: 1.5–3.0 mm

Catalogue p. 66

Blockwork accessories

Block tie plain

Plain L-shaped block tie for connecting blockwork to the structure.

Material: Galvanised · stainless steel A4 / A6
Sizes: 20–40 × 20–80 × 80–255 mm
Thickness: 1.2–3.0 mm

Catalogue p. 67

Blockwork accessories

Block tie fishtailed

Flat block tie with fishtailed end for bonding into brick and block mortar joints.

Material: Galvanised, mild steel or stainless steel A4 / A6
Sizes: 25–50 × 100–300 mm
Thickness: 1.2–4.0 mm

Catalogue p. 69

Blockwork accessories

Dovetail tie (TWA)

Tie with fishtail tail, shank and a dovetail head that engages DCH or CCH channels cast into the structure.

Elements: Fish tail (B/-/-) · DCH head -/-/30 · CCH head -/-/10
Use: Masonry to concrete frame via channel

Catalogue p. 70

Blockwork accessories

Adjustable wall tie (AWT)

Tie connecting a masonry leaf across a cavity to another leaf or frame, resisting tension and compression while allowing limited movement.

Embedment: min. 90 mm inner leaf · 65 mm outer leaf
Use: External cavity walls, basic wind speed up to 30 m/s

Catalogue p. 71

Blockwork accessories

Butterfly tie

Twisted wire cavity wall tie to BS 1243, in stainless or galvanised steel.

Material: Stainless steel A4
Sizes: 30 × 190–200 mm
Wire: 1.5–3.0 mm
Standard: BS 1243

Catalogue p. 75

Blockwork accessories

Triangle tie

Double-triangle wire cavity wall tie to BS 1243, in stainless or galvanised steel.

Material: Galvanised · stainless steel A4
Sizes: 50–120 × 150–390 mm
Wire: 3.0–5.0 mm

Catalogue p. 75

Blockwork accessories

Cavity tie corrugated

Corrugated flat strip tie for bonding masonry leaves across a cavity.

Material: Galvanised · stainless steel A4 / A6
Sizes: 25–40 × 200–250 mm
Thickness: 1.5–3.0 mm

Catalogue p. 77

Blockwork accessories

Cavity tie with 3 holes

Flat cavity tie with three holes at the end for bonding into mortar.

Material: Galvanised
Sizes: 20–30 × 200–300 mm
Thickness: 1.5–3.0 mm

Catalogue p. 77

Blockwork accessories

Cavity tie fishtailed

Flat cavity tie with fishtailed end for bonding into brickwork joints.

Material: Galvanised · stainless steel A4
Sizes: 25–50 × 100–300 mm
Thickness: 1.2–4.0 mm

Catalogue p. 78

Blockwork accessories

Debonding cavity block tie

Block tie with a rubber debonding sleeve on one end to allow movement at the connection.

Material: Galvanised steel Z180 (ASTM A653M) · stainless steel 304/316
Sizes: 25–30 × 30–40 × 75–300 mm
Thickness: 1.5–3.0 mm

Catalogue p. 79

Blockwork accessories

Debonding control joints flat tie

Flat tie with debonding sleeve used across control joints in masonry.

Material: Galvanised steel Z180 · stainless steel A2/A4
Sizes: 25–30 × 150–300 mm
Thickness: 1.5 / 3.0 mm

Catalogue p. 80

Blockwork accessories

Hammer-on section and tie

Slotted section hammered onto steel column flanges, taking wall ties or head restraints in one of five fixing slots.

Tie capacity: 900 N per tie
Service load: 2 kN/m at 225 mm vertical centres, alternate sides
Head restraint spacing: 450 mm horizontal centres

Catalogue p. 80

Blockwork accessories

R2-type wire tie

Wire wall tie manufactured to BS EN 845-1.

Material: Galvanised · stainless steel A4
Wire: Ø 4 / 5 mm
Sizes: 50–65 × 150–300 mm
Standard: BS EN 845-1

Catalogue p. 81

Blockwork accessories

Z-type wire tie

Z-shaped wire tie for tying masonry to masonry in composite walls without air space or insulation.

Material: Galvanised
Wire: Ø 4 / 5 mm
Sizes: 50–65 × 100–200 mm

Catalogue p. 81

Blockwork accessories

Adjustable head restraint (AHR)

Restrains the top of a masonry wall against wind load while allowing vertical movement of the wall or frame.

Material: Galvanised · stainless steel A2/A4 · hot-dip galvanised
Sizes: 30 × 40–140 × 150–200 mm
Thickness: 1.2–1.5 mm
Load: 1.5 kN (1.0 kN for 25–50 mm gap)

Catalogue p. 82

Blockwork accessories

Partition top angle (PTA)

Angle fixed on both sides of a blockwork wall top to resist horizontal loads without a solid connection to the ceiling.

Length: 100–300 mm
Thickness: 3–6 mm
Fixing: 2 × M6 screw with plastic anchor
Typical: L 60 × 60 × 4 mm, 300 mm wide at 1500 mm c/c

Catalogue p. 84

Blockwork accessories

Partition top rod anchor (PTRA)

Rod anchor with sleeve giving lateral shear restraint at the top of masonry walls while permitting slab deflection.

Material: Hot-dip galvanised (ASTM A153) or stainless steel 304
Rod: Ø 9.5 mm × 150 mm
Plate: 50 × 75 × 2.5 mm
Sleeve: UPVC / clear butyrate tube

Catalogue p. 86

Blockwork accessories

Sure-tie for steel

One-piece self-drilling tie that pierces insulation and wallboard to fix brick veneer to steel studs, with wire tie options.

Screw: 12-24 self driller
Wallboard: 1/2" and 5/8"
Finish: Climaseal, 0% red rust at 1000 h ASTM B-117
Options: Triangle, seismic and single wire ties · seismic anchor system · stud anchor

Catalogue p. 88