Hammerlock  + Slip hook for Trailer Chain 4177-35 and 4177-25

Can be used together with BOTH Chain 4177-25 (10mm) and 4177-35 (13mm). 

This setup suits a Trailer with an ATM up to 3500kg (perfectly with 2500kg and 3500kg). 

Hammerlock size: 

7/8mm WLL 2000kg, Breaking Force 8000kg

10mm WLL 3150kg, Breaking Force 12600kg 

Slip Hook size:

7/8mm WLL 2000kg, Breaking Force 8000kg

Each kit contains:

2pcs 7/8mm Hammerlocks (Hammer pin included) 
2pcs 10mm Hammerlocks (Hammer pin included) 
2pcs Slip Hooks with Safety Latch 

This kit works on a 13mm / 12mm / 10mm / 9mm / 8mm chain

Overall Breaking force is 8000kg as:

A chain is as strong as the Weakest Link

Max 5300KG Aggregate Trailer Mass (ATM)

See the picture for how they are connected.

7/8mm hammerlock for chain & hook, 10mm hammerlock for tow bar

How to and Why – Tagged "Hammerlock"– George4x4 4WD Recovery Gear

FEATURES:

• All Meet Grade 80 standard with Figure Tested over 20000 times
• AS 3776 Compliant
• Made of G80 Steel
• Test Certificates Available Upon Request
• Marked With Chain Size / Grade / and Manufacture Code (tracking code)   
• Item # indicated in the dimension figures

Reference information for trailer chain (from official website of Government QLD/NSW/WA/SA/etc...)