HWH Chain - High Test 40/43

HWH High Test Chain: Grade 40/43 Strength for Demanding Applications

When a job demands reliable holding power without excessive weight, Grade 40/43 High Test chain is the go-to standard — and HWH delivers it in a focused selection built for professionals and serious enthusiasts alike. Whether you're rigging ground tackle on a boat, securing a heavy load on a trailer, or setting up a utility hoist application, HWH's High Test 40/43 Chain offers the tensile strength and durability the task demands.

What Makes Grade 40/43 High Test Chain Special?

Grade 40 and Grade 43 chain — often used interchangeably and marked "G4" on individual links — is manufactured from high-tensile strength carbon steel that is also heat treated after forming. This process gives it a working load limit roughly twice that of standard proof coil or BBB chain of the same diameter, while keeping the overall weight lower. That superior strength-to-weight ratio is why Grade 43 has become the preferred choice for anchor rodes, hauling chains, and general-purpose securing tasks where every pound matters.

The heat-treating and high-carbon steel construction also translate directly into improved wear resistance. In abrasive conditions — gravel sea beds, rocky terrain, or rough contact surfaces — Grade 40/43 chain holds up far longer than lower-grade alternatives. Each link is individually tested during the manufacturing process, so the rated working load limits are reliably consistent throughout the chain's length.

HWH's Approach to High Test Chain

HWH brings its hardware expertise to this category with a straightforward, no-compromise selection of Grade 40/43 High Test chain designed to meet the needs of marine, towing, and utility customers. The chain is sized to match the most common real-world applications, with link geometry compatible with standard shackles, hooks, and connecting hardware. HWH's chain products are a natural complement to the brand's broader hardware portfolio — when you need a reliable fastening or anchoring solution, HWH keeps the specification simple and the quality consistent.

It's worth noting that Grade 40/43 chain is not calibrated for windlass anchor systems or pocket wheels — for those applications, an ISO-short-link windlass-specific chain is required. For manual anchor rodes, load-securing, towing assists, and general utility rigging, however, High Test 40/43 chain is an excellent and cost-effective workhorse.

Key Features of HWH Grade 40/43 High Test Chain

• High-tensile carbon steel construction — significantly stronger than proof coil or general-utility chain of the same size
• Heat-treated links — improved hardness and wear resistance for demanding environments
• Superior strength-to-weight ratio — carry heavier loads without adding unnecessary bulk
• G4-marked links — easy grade identification so you always know exactly what you have in your hands
• Compatible with standard hardware — works with common hooks, shackles, and load-binding fittings

Browse the full HWH brand catalog to explore complementary hardware and fastener products, or shop the complete High Test 40/43 Chain category to compare options and find the right size for your application.