Trusted by generations of building and construction professionals
EXPAMET
ESTABLISHED QUALITY 

Expamet encompasses a wide range of products designed and manufactured in Britain and trusted by generations of construction professionals.

BUILDERS METALWORK
BUILDING INDUSTRY EXPERTISE SINCE 1889

A wide range of straps, fixings, angles and brackets, wall starters, ties and reinforcement

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PLASTERERS ACCESSORIES
BUILDING INDUSTRY EXPERTISE SINCE 1889

Arch formers and accessories, plus beads in coated or galvanized metal, stainless steel and uPVC

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Icon Caret Product Attributes

Brand Expamet BAT
Generic Ref BP
Product Range Builders Metalwork
Product Sub-range Timber Connectors
Product Type Nail Plate
European Standard/ETA BS EN14545:2008
Notified Body Exova BM Trada (NB 1224)
Material Galvanized Mild Steel DX51D+Z275 to EN10346:2015
Coating/Finish/Colour 275g/m² Zinc Coating
Material Gauge 0.9mm
Declared Loadbearing Capacity 345N/Nail (SLS - parallel to grain) 145N/Nail (SLS - perpendicular to grain)
Fire Rating Euroclass A1
Fixing Hole Dimensions 3.5mm
Fixing Type 3.75 x 30mm Square Twisted Sherardized/Galvanised Nails
Installation requirement 1 All nail holes must be filled.
Installation requirement 2 Nail plates should be used on both sides of the joint to prevent eccentric loading.
Installation requirement 3 Ensure plate is located cenrally over joint
Packaging weight 0
Features/Benefits 1 275g/m2 Gavanized Coating
Options 1 None
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Part of the Birtley Group

Birtley began life as Birtley Building Products in 1965, based at the current site in County Durham. Originally a steel fabricator for the area’s mining and power generation industries, the company made its first steel lintels in 1967. Since then, Birtley has grown from reliable local supplier to a UK-wide force in construction design technology and product development.

In 1889, the British Metal Expansion Company was established in Hartlepool. It had sole European rights for the manufacture of expanded metal mesh, mainly for use as reinforcement and lath in the rapidly expanding sector of concrete construction. The business that grew from these early days later changed its name to Expamet.


Acquired by Birtley Group in 2015, Bowater Doors is a nationally-known name synonymous with top quality and imaginative composite residential door design and manufacture.

The product portfolio offers exclusive ranges for trade installers and a retail range providing doors direct to consumer and social housing organisations.

Birtley Galvanizing boasts one of the most impressive galvanizing plants in Europe. The plant achieves the finest quality hot-dip galvanized zinc protective coatings to BS EN ISO 1461. Using state-of-the-art technology the plant processes steel products using a computer controlled, automated handling system, enabling Birtley Galvanizing to provide full project solutions to many industries.