CLGR® Grade 80 Master Link Assembly U.S. Standard, also known as Master Links with Sublinks G80, Oblong Master Link Sub-Assembly, Grade 80 Quad Master Link Assembly, and Welded Master Link Assembly.
Forged from quenched and tempered alloy steel and finished with a powder-coated layer for corrosion protection, these Grade 80 Quad Master Links feature reinforced construction with precision-flattened contact surfaces. This engineered design enables seamless integration with omega links or thimbles, delivering reliable heavy-duty connectivity specifically for 3-leg and 4-leg chain sling assemblies.
Available sizes in 1/2", 11/16", 5/8", 3/4", 7/8", 1, 1-1/8", 1-1/4", 1-1/2", 1-3/4", 2 (customized sharps and sizes also), it maintains a safety factor of 4:1 to ensure reliable performance under heavy loads.
Brand | CLGR® |
Standard | U.S. Type (ASME B30.26) |
Material | Superior Alloy Steel |
Safety Factor | For chain sling: Minimum Ultimate Load is 4 times the Working Load Limit For steel rope sling: Minimum Ultimate Load is 5 times the Working Load Limit |
processing | 8CRWMLAUS1/2 to 8CRWMLAUS7/8 ⇒ Main link: WELDED; Sub links: WELDED. 8CRWMLAUS1-1/8 to 8CRWMLAUS1-3/4 ⇒ Main link: WELDED; Sub links: WELDED. 8CRWMLAUS2/1 ⇒ Main link: FORGED; Sub links: WELDED. Quenched and Tempered |
Finish | Powder Coated |
Size | 1/2", 11/16", 5/8", 3/4", 7/8", 1, 1-1/8", 1-1/4", 1-1/2", 1-3/4", 2 |
Tips | Color Code: Customized according to customers' requirements |
Note | There will be pressing flat only on request. Use Only Grade 80 Attachments For Overhead Lifting |
Country of Origin | China |

For chain sling: Minimum Ultimate Load is 4 times the Working Load Limit.
For steel rope sling: Minimum Ultimate Load is 5 times the Working Load Limit.
BLUE AREA SIZE: Main link: WELDED Sub links: WELDED
YELLOW AREA SIZE: Main link: FORGED Sub links: WELDED
Part No. | Size (in) | Weight (KG) | Chain | WLL (T) | WLL ROPE (T) | DIMENSION(MM) | ||||||
A | B | D | a | b | d | s | ||||||
8CRWMLAUS1/2 | 1/2 | 0.82 | 7/32 | 2.36 | 2.4 | 100±5 | 60±5 | 14±1 | 85±5 | 40±3 | 12±1 | 6±0.5 |
8CRWMLAUS11/16 | 11/16 | 1.6 | 1/4 | 3.15 | 3.2 | 160±6 | 90±5 | 18±1 | 100±5 | 60±5 | 14±1 | 7.6±0.5 |
8CRWMLAUS5/8 | 5/8 | 1.6 | 1/4 | 3.15 | 3.2 | 160±6 | 90±5 | 18±1 | 100±5 | 60±5 | 14±1 | 7.6±0.5 |
8CRWMLAUS3/4 | 3/4 | 1.95 | 5/16 | 4.25 | 4.2 | 160±6 | 90±5 | 20±1 | 100±5 | 60±5 | 14±1 | 7.6±0.5 |
8CRWMLAUS7/8 | 7/8 | 3.16 | 3/8 | 6.7 | 8 | 180±6 | 100±5 | 22±1 | 150±6 | 70±5 | 18±1 | 8.4±0.5 |
8CRWMLAUS1 | 1 | 5.28 | 3/8 | 10 | 10 | 270±6 | 140±5 | 25±1 | 155±5 | 80±4 | 20±0.5 | 11±0.5 |
8CRWMLAUS1-1/8 | 1-1/8 | 6.75 | 1/2 | 11.2 | 12 | 207±7 | 140±6 | 28±1/-2 | 160±6 | 90±5 | 22±1 | 13.5±0.5 |
8CRWMLAUS1-1/4 | 1-1/4 | 9.31 | 5/8 | 17 | 17 | 207±7 | 140±6 | 32±1/-2 | 180±6 | 100±5 | 25±1 | 16.5±0.5 |
8CRWMLAUS1-1/2 | 1-1/2 | 18.4 | 3/4 | 23.6 | 25 | 300±7 | 160±6 | 40±1/-2 | 270±7 | 140±6 | 31±1/-2 | 19±0.5 |
8CRWMLAUS1-3/4 | 1-3/4 | 26.6 | 7/8 | 31.5 | 31.5 | 340±4 | 180±6 | 45±1/-2 | 285±7 | 155±6 | 36±1/-2 | 22±0.5 |
8CRWMLAUS2 | 2 | 42.91 | 1 | 45 | 45 | 350±10 | 190±6 | 51±1/-2 | 340±10 | 180±6 | 45±1/-2 | 25±0.5 |