William Hackett: Leading Chain and Lifting Solutions Provider

William Hackett is a world-renowned manufacturer of chain and lifting solutions, trusted by professionals in a wide range of industries. Holloway is proud to offer a wide selection of William Hackett products, including chain slings, lifting blocks, and hoisting equipment.

The HA range of master links and quad assemblies is the most complete range of links available today, in diameters from 16mm up to 120mm and working load limits up to 250 tonnes. The links are manufactured from triple alloy steel in accordance with EN1677, they are individually proof load tested to 2.5 times working load limit in accordance with EN1677 and they are all supplied with charpy impact values of in excess of 42 Joules at -40°C. The links are suitable for use in a temperature range of -40°C up to 200°C without reduction in working load limit. The HA range of links are widely used in lifting sets for offshore containers and they are type approved to DNV 2.7-1 under approval number TAS000013Z.

  • chain_1MPF = Manufacturing Proof Force = 2.5 x 9.81 x Working Load Limit (kN) (min.)
  • chain_1BF = Break Force = WLL x Factor of Safety
  • chain_1WLL = Working Load Limit (tonne) @ 45° to vertical
  • chain_1Factor of Safety = 5 : 1
  • chain_1Embossing – As per Description column and Batch Number
  • chain_1Manufactured in accordance with EN1677-4
  • chain_1Design air temperature -40° min. Average impact energy (charpy) 42 Joules up to 50mm diameter
  • chain_1DNV type approval No. TAS000013Z
  • chain_1Operational temperature range is -40° C to + 200°C
  • chain_1*Certified on a batch basis to the requirements of DNV 2.7-1
Certified to: DNV2.7-1, DNV2.7-3, EN12079-2, EN1677-4
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HA Master Links - Type Approval No. TAS000013Z


HA Quad Assemblies – Type Approval No. TAS000013Z