RRF Purlin Bracket Left 290x2mm Hot-Dip Galvanized Steel 50pcs Fast ​833382

Description

The left-hand RRF purlin bracket is a specialized structural connector designed for joining and stabilizing intersecting timber elements in roof structures. It is primarily used to securely anchor secondary purlins directly to load-bearing primary beams or roof trusses. Its well-engineered design and 2 mm material thickness create a mechanically robust connection point that resists twisting, lateral movement, and uplift forces caused by wind or snow loads. This bracket is particularly well-suited for structures where the load-bearing framework will be covered by a sub-roof or other cladding, as well as for buildings where the presence of visible metal connectors does not detract from the overall aesthetic.

Design and Function

The RRF purlin bracket features offset flanges configured for left-hand installation. Its geometry allows the bracket to sit flush against both the underlying primary beam and the intersecting purlin simultaneously. The angled profile distributes applied forces evenly across the contact surfaces, minimizing the risk of point loading and splitting within the timber. The solid steel plate retains its shape even under varying climatic stresses, contributing to a dimensionally stable roof structure over the long term.

Material and Corrosion Protection

The connector is manufactured from high-quality steel plate with a thickness of 2.0 mm, which has undergone a hot-dip galvanizing process. This process creates an effective, comprehensive zinc coating that protects the base metal against moisture, oxygen, and external abrasion. This provides reliable rust protection, making it ideally suited for ventilated roof spaces, unheated attic floors, agricultural/utility buildings, and carports—environments where moisture and temperature fluctuations may occur.

Typical Applications

This purlin connector is a versatile fastening element in modern timber construction and is frequently used in the following applications:

• Anchoring secondary purlins to glulam beams or primary roof beams.
• Joining intersecting timber members in roof truss and floor/ceiling structures.
• Stabilizing studs and support beams in garages, machinery sheds, storage buildings, and holiday homes.
• Construction projects where the structural frame is covered by roof underlayment, insulation, or panel materials.
• Renovation and extension projects where existing timber structures require additional stiffening.

Installation Instructions and Fastening

The RRF purlin connector can be installed efficiently, thanks to a large number of evenly spaced nail holes with a diameter of 5.0 mm. To ensure full load-bearing capacity and compliance with structural design standards, approved fasteners must be used:

• 4.0 mm anchor nails of an appropriate length, selected based on the dimensions of the timber.
• 4.8 mm anchor screws for fast, precise installation using a power drill/driver.

The connector is positioned in the angle between the primary load-bearing beam and the purlin, then secured by driving nails or screws through the pre-drilled holes. It must be installed flush against the timber surfaces, with no gaps. The number of nails or screws used should be determined based on the structure’s calculated load requirements and applicable building codes. If necessary, the left-hand version can be paired with the corresponding right-hand version on the opposite side of the beam, creating a symmetrical, double-sided connection with increased load-bearing capacity.

Advantages of the RRF Purlin Connector

• Creates a connection between intersecting timber members that is resistant to both tension and shear forces.
• Hot-dip galvanized finish provides long-term protection against corrosion.
• The 5.0 mm hole pattern in the flanges allows for flexible fastening using either nails or screws.
• A robust steel thickness of 2.0 mm ensures high torsional rigidity and dimensional stability.
• Enables time-saving, standardized installation for both small-scale and large-scale construction projects.

Technical Specifications

• Model Designation: RRF Rafter Bracket
• Version: Left
• Height: 290 mm
• Sheet Thickness: 2.0 mm
• Material: Hot-dip galvanized sheet steel
• Nail Hole Diameter: 5.0 mm
• Recommended Fasteners: 4.0 mm anchor nails or 4.8 mm anchor screws
• Quantity per Pack: 50 pcs