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Application

Suitable for masonry wall or the inner leaf of a cavity wall.

Description

Designed to restrain the top of masonry walls or the inner leaf of a cavity wall. They allow vertical movement to accommodate shrinkage or thermal movement of the wall or structural frame, whilst restraining wind loads. The standard Wincro WT75HR suits a 215 mm high block.


Head restraints include:

  • Wincro WT75BHR: The WT75BHR has two angles which clamp the top of the wall and each have 10 mm holes for a single fixing to the underside of a structural member and provides a safe working load of 1.0 kN. Universal size suits 100 and 140 mm blockwork.
  • Wincro WT75HR: Designed to suit standard 215 mm high blocks with a 25 mm maximum joint at the top, and can be adjusted to suit 190–275 mm cut block depths. The WT75HR has a single 9 mm wide slot to allow fixing to the underside of a structural member and provides a safe working load of 1.5 kN.
  • Wincro WT75HRC: Designed to suit standard 215 mm high blocks with a 25 mm maximum joint at the top. The WT75HRC has a notch to allow fixing to the underside of a structural concrete member and provides a safe working load of 1.5 kN. The WT75HRC can fix directly to a 38/17 (WT75HRC38) or 28/15 cast-in channel (WT75HRC28).


Features and benefits:

  • Multiple fixing methods.
  • Provides lateral movement and allows for differential movement.
  • Manufactured from corrosion resistant stainless steel.
  • Suits all blockwork widths.

General information

Color

Silver

Material

Stainless steel

Guidance for specification option:

Grade 1.4301 (304), standard.

Grade 1.4401 (316), optional.

Shape

Other

Uniclass

Pr_20_85_84_36 Head restraint slip tiesPrimary

CAWS

F30/251 Wall head restraint slip ties

Specification data - Head restraint slip ties

Material

Stainless steel, grade 1.4301 (304).

Fixing

38/17 (WC38) cast-in channel into the underside of a structural member.

Accessories

None.

WBEBM8.

Guidance for specification option:

M8 expansion bolt for fixing to concrete.

WBXSM8.

Guidance for specification option:

M8 Xylan coated setscrew (to UB) complete with neoprene isolation washer for fixing to structural steelwork.

WBBBM8.

Guidance for specification option:

Blindbolt (RHS) for fixing to structural steelwork.

WIP75.

Guidance for specification option:

Neoprene isolating patch for fixing to steelwork.

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Manufacturer guidance

Fixing accessories.

Working load limit (WLL)

1.5 kN.

Manufacturer guidance

Safe working load.

Sizes

215 mm high blocks.

Guidance for specification option:

With 25 mm maximum joint at the top.

Manufacturer guidance

Blockwork size.

Spacing

600-900 mm centres.

Manufacturer guidance

Positioning/ spacings.

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