Approvals

Applicable Standards are NZS 3603 and NZS 3604:2011 - Section 4 Durability.

Design Loading:

These can be derived from the characteristic strength of bolts in timber, using the relevant design code

NZS 3603.

Durability:

The selection of BOWMAC Stainless Steel brackets should be made in conjunction with the MiTek Durability Product Selection and Durability Flow Charts in Section 4 of the current MiTek Structural Fixings On-Site Guide. These selection charts are an alternative solution to Table 4.1 NZS 3604:2011.

The recommendation and use of BOWMAC Stainless Steel brackets prescribed in these selection charts is based on supporting advice from Les Boulton & Associates - Materials and Corrosion Consultants in their report# 99267.

When used, handled and installed in accordance with the above conditions, BOWMAC Stainless Steel brackets will meet NZBC Clause B2 for 50 years durability performance requirements.

Depending on specific weather exposure and salt spray environments, there may be evidence of 'tea staining' on the surface of Stainless Steel brackets.

Tea staining is a visual issue only and DOES NOT affect the structural integrity of the bracket. To minimise this occurrence, it is suggested that a regular washing/ maintenance cycle be implemented using warm water with a mild detergent and a cold fresh water rinse.

It is not advisable for any BOWMAC Stainless Steel products to be painted over as this may affect the natural anti-corrosive characteristics of stainless steel.

CAD File