H1020 Mackay Chain Galvanised 13mm x 620mm (13 Links) AS4177-35 | Marine Trailer Part

🔧 Product Description

Mackay Galvanised Trailer Safety Chain 13mm × 620mm – Part Number: H1020

A 13mm galvanised trailer safety chain measuring approximately 620mm with 13 links. It is intended for the trailer manufacturer's approved permanent attachment method.

⚙️ Key Features

• 13mm nominal chain diameter
• Approximate length: 620mm
• Link count: 13 links
• Galvanised finish
• Purpose-built trailer safety-chain component
• Permanent attachment hardware selected separately

📏 Specifications

• Chain diameter: 13mm
• Length: 620mm
• Links: 13 links
• Use only to the permanently marked chain designation
• AS 4177.4 requirements apply to rated light-trailer chains up to the applicable ATM

🔄 Cross Reference & Related Parts

• Mackay: H1020
• Dunbier related reference: 1020
• Connection shackles and vehicle attachment points must equal or exceed the chain capacity

🚤 Trailer Compatibility & Application

• Suitable only where the trailer ATM and required number of chains match the chain markings
• The trailer and towbar attachment points must be structurally adequate

🔌 Function

Provides a secondary connection intended to retain and control the trailer if the main coupling disconnects.

⚠️ Common Signs of Failure

• Links are bent, stretched, cracked or deeply worn
• Heavy corrosion has reduced chain diameter
• Bolt-on attachment is loose or drawbar hole is damaged
• Chain has been dragged on the road
• Rating markings are missing or unreadable

🛠️ Installation & Safety

• Install to current trailer regulations
• Do not weld, heat or grind a rated chain link unless expressly approved
• Use an engineered bolt-on point for bolt-mounted versions
• Use correctly rated connection hardware
• Inspect before every trip

📦 Condition

• Brand new Mackay trailer component
• Supplied as one 13mm × 620mm safety chain
• Supplied in original or equivalent packaging