Crosby 9/32″ (1/4″) A-1337 Lok-A-Loy Grade 100 Coupling Link – 4300 lbs WLL – #1015104

The Crosby 9/32" (1/4") A-1337 Lok-A-Loy Grade 100 Coupling Link – 4300 lbs WLL is part of the Crosby link range (catalogue no. 1015104). Sealinkers supplies it from Mumbai with documentation on request.

Crosby A-1337 Alloy Coupling Links – Grade 80/100 Chain Sling Connectors
Crosby A-1337 Coupling Links are high-strength, forged alloy connectors engineered for assembling and repairing Grade 80 and Grade 100 chain slings. Designed for heavy-duty overhead lifting, these links provide a secure, permanent connection between chain, master links, and hooks while maintaining the full rated capacity of modern alloy sling systems.
Key Features Forged alloy steel construction – quenched and tempered for maximum toughness and fatigue resistance.
Lok-A-Loy® Grade 100 design with alloy locking pin and sleeve for quick, tool-free assembly.
Rated for use with Grade 80 and Grade 100 alloy chain – maintains full Working Load Limit (WLL) of connected components.
Individually proof tested at 2½ × WLL with certification; fatigue rated in sizes 9/32 – 1 inch.
High-visibility black finish permanently embossed with “P 10” (Peerless / Grade 10 = 100).
Applications: connecting alloy chain to master links, hooks, and other components in overhead lifting sling assemblies. Important: The Crosby A-1337 Lok-A-Loy® 10 Alloy Coupling Link is approved for overhead lifting and suitable for use in Grade 80 and Grade 100 chain sling systems. Maintains the full Working Load Limit (WLL) of the sling system.
Meets or exceeds ASME B30.26, EN 1677-1, and ASTM A952/A973 requirements for Grade 100 fittings.
Forged, quenched & tempered alloy steel with a 4:1 Design Factor. Specifications Stock No.
Nominal Chain Size (in)
Working Load Limit (lbs)
Weight (lb)
Diameter of Hole to Accept Link (in) 1015104
9/32 (1/4)
4,300
0.29
0.53 1015113
5/16
5,700
0.42
0.59 1015122
3/8
8,800
0.77
0.73 1015136
1/2
15,000
1.60
0.89 1015145
5/8
22,600
3.10
1.20 1015154
3/4
35,300
6.39
1.56 1015163
7/8
42,700
7.85
1.55 1015172
1
59,700
11.05
1.88 1015181
1-1/4
90,400
21.00
2.22 Design Factor 4:1. Individually proof tested to 2.5× WLL. Meets ASME B30.26 and ASTM A952 requirements. Approved for overhead lifting with Grade 80 and Grade 100 chain systems.

Specifications

Prices, stock and lead times are quoted on request. Use the quote form or WhatsApp on this page, and ask for test certificates with your enquiry.