Pryda Knuckle Nailplates are galvanised steel connectors with in-built, bent-up “knuckle” nails. These plates are ideal for many structural and nonstructural timber jointing and timber protection uses. Applied simply by hammering in the “knuckle nails”, these plates are used by tradesmen, home owners, frame and box manufactures, electricity supply authorities and builders. Special pressing equipment is not necessary.
Among the many uses of Knuckle Nailplates (see Applications following), the most common are:
- jointing of wall frames together on-site
- on-site splicing of timber beams
- reinforcement of corners of boxes and bins
- reinforcement of bolted joints (eg: in Cable Truss)
- truss manufacture in areas with low labour costs.
Generally, Knuckle Nailplates:
- provide a strong, economical and easy-to-use means of jointing timber together
- protect timber from damage as they:
- resist splitting due to drying of the timber, nailing near ends or other causes eg: Bin Straps
- resist the effects of impact loads such as from fork lift tyne strikes
- dissipate electricity current surges in cross arms over a larger area (eg: Shunt plates)
- distribute concentrated loads over a wider area. For example, they increase the strength of bolted joints.
- hold joints together, preventing or restricting the separation of nailed joints such as in boxes and crates, eg: Bin Straps.
As well as the standard flat plate will all nail columns punched, Knuckle Nailplates can be manufactured:
(a) with columns of nails omitted for greater steel strength or for inclusion of a bolt hole
(b) bent at right angles with the nails outside (external angle) or inside (internal angle)
(c) in coils or bar stock which allow customers to cut off the lengths they require