Collection: Hammerlock For Trailer Chain

Hammerlock serves as a legal part for trailer chain extension or safety chain for caravan campers and all other trailers.

Sizes available are 6mm with a breaking force of 4480kg, 7/8mm with a breaking force of 8000kg, and 10mm with a breaking force of 12600kg.

Size suggestions:

  • For ATM 2900kg and below, use 6mm.
  • For ATM 4400kg and below, use 7/8mm or 10mm.

As chain connector:

  • Use 6mm hammerlock for 7/8mm chain or 10mm safety chain.
  • Use 7/8mm hammerlock for 10mm chain or 13mm safety chain.
  • Use 10mm hammerlock for 13mm safety chain.

AsΒ hook connector:

  • Use 6mm hammerlock for 6mm hook.
  • Use 7/8mm hammerlock for 7/8mm hook.
  • Use 10mm hammerlock for 10mm hook.

If you are unsure about what size of hammerlock to choose or are having trouble assembling them, visit here to learn more.

4 products
  • Grade 80 HammerLock 7/8mm 2T, Chain Connector Connecting Link Lifting
    A hammerlock, a link that connects chains to other fittings when the chain link is too small. Made of high-quality alloy steel, drop forged and heat-treated for strength and flexibility. Easy to assemble and disassemble, often used to connect winch hooks to steel cable/synthetic winch rope. Consist of two separate body pieces, a tapered shaft, and a sleeve Size: 7/8mm WLL: 2ton BS: 8.0ton Grade: 80 (T8) Test certificate supplied upon request Pin comes with Oxygen Black or Galv. randomly
    Regular price
    $12.90
    Sale price
    From $10.90
  • Grade 80 HammerLock 10mm 3.15T, Chain Connector Connecting Link Lifting
    A hammerlock, a link that connects chains to other fittings when the chain link is too small. Made of high-quality alloy steel, drop forged and heat-treated for strength and flexibility. Easy to assemble and disassemble, often used to connect winch hooks to steel cable/synthetic winch rope. Consist of two separate body pieces, a tapered shaft, and a sleeve Size: 10mm WLL: 3.15ton BS: 12.6ton Grade: 80 (T8) Test certificate supplied upon request Pin comes with Oxygen Black or Galv. randomly
    Regular price
    $15.90
    Sale price
    From $15.90
  • Grade 80 HammerLock 6mm 1.12T, Chain Connector Connecting Link
    A hammerlock, a link that connects chains to other fittings when the chain link is too small. Made of high-quality alloy steel, drop forged and heat-treated for strength and flexibility. Easy to assemble and disassemble, often used to connect winch hooks to steel cable/synthetic winch rope. Consist of two separate body pieces, a tapered shaft, and a sleeve Size: 6mm WLL: 1.12ton BS: 4.48ton Grade: 80 (T8) Test certificate supplied upon request Pin comes with Oxygen Black or Galv. randomly
    Regular price
    $11.90
    Sale price
    From $9.90
  • Grade 100 HammerLock 8mm 2.5Ton Chain Connector Connecting Link Lifting
    Grade 100 HammerLock Chain Connector Connecting Link Size: 8mm, WLL 2.5ton (2500kg) Breaking Force: 10ton (10000kg) DESCRIPTION and FEATURES: Size: 8mm WLL: 2.5ton BS: 10.0ton (4 times of WLL)  Grade: 100 (T10) Made from Quality Alloy steel Drop forged and heat treated Test certificate supplied upon request Pin comes with Galv.  Item # 10HL08  Trailer chain extender (chain extend) for BOTH 4177-35 or 4177-25
    Regular price
    $15.90
    Sale price
    From $13.90