Master Links/Localoys-D
Ratings below are for use with chain slings fabricated in accordance with ASME B30.9.
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- Alloy Steel — Quenched and Tempered.
- Individually Proof Tested to values shown, with certification.
- Proof Tested with 60% inside width special fixtures sized to prevent localized point leading per ASME A-952.
- Meets or exceeds all requirements of ASME B30.26 including identification, ductility, design factor, proof load and temperature requirements. Importantly, these links meet other critical performance requirements including fatigue life, impact properties and material traceability, not addressed by ASME B30.26.
- Forgings have a Product Identification Code (PIC) for material traceability, along with the size, the name Crosby and USA in raised lettering.
- Selected sizes designated with “W” in the size column have enlarged inside dimensions to allow additional room for sling hardware and crane hook.
- Crosby 1-1/4” to 2” 342/345 master links are type approved to DNV Certification Notes 2.7-1- Offshore Containers. These Crosby master links are 100% proof tested, MPI and impact tested. The tests are conducted by Crosby and 3.1 test certification is available upon request.
- Incorporates patented QUIC-CHECK® deformation indicators.
A-342 Alloy Master Links
| Size | Mfg. # | CSI Ref. # | Weight Each (lbs.) |
Working Load Limit (lbs.) |
Proof Load (lbs.)** |
|
|---|---|---|---|---|---|---|
| (in.) | (mm) | |||||
| 1/2W | 13W | 1014266 | CS-07-0951 | 1.3 | 7,400 | 17,200 |
| 5/8 | 16 | 1014280 | CS-07-0952 | 1.5 | 9,000 | 18,000 |
| 3/4W | 19W | 1014285 | CS-07-0953 | 2.0 | 12,300 | 28,400 |
| 7/8W | 22W | 1014319 | CS-07-0954 | 3.3 | 15,200 | 35,200 |
| 1W | 26W | 1014331 | CS-07-0955 | 6.1 | 26,000 | 60,000 |
| 1-1/4W | 32W | 1014348 | CS-07-0956 | 12.0 | 39,100 | 90,400 |
| 1-1/2W | 38W | 1014365 | CS-07-0957 | 18.6 | 61,100 | 141,200 |
| 1-3/4 | 44 | 1014388 | CS-07-0958 | 25.2 | 84,900 | 169,800 |
| 2 | 51 | 1014404 | CS-07-0959 | 37.0 | 102,600 | 205,200 |
| 2-1/4 | 57 | 1014422 | CS-07-0960 | 54.1 | 143,100 | 289,200 |
| 2-1/2 | 63 | 1014468 | CS-05-2980 | 68.5 | 160,000 | 320,000 |
| 2-3/4 | 70 | 1014440 | CS-05-2981 | 94.0 | 216,900 | 433,800 |
| 3 | 76 | 1014486 | CS-05-2982 | 115 | 228,000 | 456,000 |
| 3-1/4 | 83 | 1014501 | CS-05-2983 | 145 | 262,200 | 524,400 |
| 3-1/2 | 89 | 1014529 | CS-05-2984 | 200 | 279,000 | 558,000 |
| 3-3/4 | 95 | 1015051 | CS-05-2985 | 198 | 336,000 | 672,000 |
| 4 | 102 | 1015060 | CS-05-2986 | 264 | 373,000 | 746,000 |
| †† 4-1/4 | †† 108 | 1015067 | CS-05-2987 | 302 | 354,000 | 708,000 |
| †† 4-1/2 | †† 114 | 1015079 | CS-05-2988 | 345 | 360,000 | 720,000 |
| †† 4-3/4 | †† 121 | 1015088 | CS-05-2989 | 436 | 389,000 | 778,000 |
| †† 5 | †† 127 | 1015094 | CS-05-2990 | 516 | 395,000 | 790,000 |
*Ultimate Load is 5 times the Working Load Limit. Based on single leg sling (in-line load), or resultant load on multiple legs with an included angle less than or equal to 120 degrees. Applications with wire rope and synthetic sling generally require a design factor of 5.
**Proof Test Load equals or exceeds the requirement of ASTM A952(8.1) and ASME B30.9.
††Welded Master Link.
A-342 Alloy Master Link Dimensions
| Size | Dimensions (in.) | ||||
|---|---|---|---|---|---|
| (in.) | (mm) | A | B | C | Deformation Indicator |
| 1/2W | 13W | 0.62 | 2.80 | 5.00 | 3.50 |
| 5/8 | 16 | 0.62 | 3.00 | 6.00 | 3.50 |
| 3/4W | 19W | 0.73 | 3.20 | 6.00 | 4.00 |
| 7/8W | 22W | 0.88 | 3.75 | 6.38 | 4.50 |
| 1W | 26W | 1.10 | 4.30 | 7.50 | 5.50 |
| 1-1/4W | 32W | 1.33 | 5.50 | 9.50 | 7.00 |
| 1-1/2W | 38W | 1.61 | 5.90 | 10.5 | 7.50 |
| 1-3/4 | 44 | 1.75 | 6.00 | 12.0 | 7.50 |
| 2 | 51 | 2.00 | 7.00 | 14.0 | 9.00 |
| 2-1/4 | 57 | 2.25 | 8.00 | 16.0 | 10.0 |
| 2-1/2 | 63 | 2.50 | 8.38 | 16.0 | 11.0 |
| 2-3/4 | 70 | 2.75 | 9.88 | 18.0 | 12.5 |
| 3 | 76 | 3.00 | 9.88 | 18.0 | 13.0 |
| 3-1/4 | 83 | 3.25 | 10.0 | 20.0 | 13.5 |
| 3-1/2 | 89 | 3.50 | 12.0 | 24.0 | 15.5 |
| 3-3/4 | 95 | 3.75 | 10.0 | 20.0 | 13.5 |
| 4 | 102 | 4.00 | 12.0 | 24.0 | 16.0 |
| †† 4-1/4 | †† 108 | 4.25 | 12.0 | 24.0 | – |
| †† 4-1/2 | †† 114 | 4.50 | 14.0 | 28.0 | – |
| †† 4-3/4 | †† 121 | 4.75 | 14.0 | 28.0 | – |
| †† 5 | †† 127 | 5.00 | 15.0 | 30.0 | – |
A-345 Master Link Assembly with Engineered Flat
for use with S-1325A coupler link.
| Size | Mfg. # | CSI Ref. # | Weight Each (lbs.) |
Working Load Limit Based on 5:1 Design Factor (lbs.) |
Proof Load (lbs.)** |
|
|---|---|---|---|---|---|---|
| (in.) | (mm) | |||||
| 3/4W | 19W | 1014739 | CS-07-0961 | 3.5 | 12,300 | 28,400 |
| 7/8W | 22W | 1014742 | CS-07-0962 | 4.8 | 15,200 | 35,200 |
| 1W | 26W | 1014766 | CS-07-0963 | 9.3 | 26,000 | 60,000 |
| 1-1/4W | 32W | 1014779 | CS-07-0964 | 15.8 | 39,100 | 90,400 |
| 1-1/2W | 38W | 1014807 | CS-07-0965 | 34.1 | 61,100 | 141,200 |
| 1-3/4 | 44 | 1014814 | CS-07-0966 | 46.7 | 84,900 | 169,800 |
| 2 | 51 | 1014832 | CS-07-0967 | 67.2 | 102,600 | 205,200 |
| 2-1/2 | 64 | 1014855 | CS-04-2991 | 206 | 160,000 | 320,000 |
| 2-3/4 | 70 | 1014864 | CS-04-2992 | 282 | 216,900 | 433,800 |
| 4 | 102 | 1014999 | CS-04-2993 | 667 | 373,000 | 746,000 |
*Ultimate Load is 5 times the Working Load Limit. The maximum individual sublink working load limit is 75% of the assembly working load limit except for 2-1/2”and 2-3/4”, which are 100% of assembly working load limit. Applications with wire rope and synthetic sling generally require a design factor of 5.
**Proof Test Load equals or exceeds the requirement of ASTM A952(8.1) and ASME B30.9.
A-342 Alloy Master Link Dimensions
| Size | Dimensions (in.) | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| (in.) | (mm) | A | B | C | D | E | F | G | Deformation Indicator |
| 3/4W | 19W | 0.73 | 3.20 | 6.00 | 0.56 | 3.35 | 1.77 | 0.30 | 4.00 |
| 7/8W | 22W | 0.88 | 3.75 | 6.38 | 0.56 | 3.35 | 1.77 | 0.30 | 4.50 |
| 1W | 26W | 1.10 | 4.30 | 7.50 | 0.75 | 3.94 | 2.36 | 0.33 | 5.50 |
| 1-1/4W | 32W | 1.33 | 5.50 | 9.50 | 1.00 | 6.30 | 3.54 | 0.51 | 7.00 |
| 1-1/2W | 38W | 1.61 | 5.90 | 10.5 | 1.25 | 7.09 | 3.94 | 0.65 | 7.50 |
| 1-3/4 | 44 | 1.75 | 6.00 | 12.0 | 1.38 | 8.00 | 5.00 | 0.73 | 7.50 |
| 2 | 51 | 2.00 | 7.00 | 14.0 | 1.50 | 9.00 | 5.75 | – | 9.00 |
| 2-1/2 | 64 | 2.50 | 8.38 | 16.0 | 2.50 | 16.0 | 8.38 | – | 11.0 |
| 2-3/4 | 70 | 2.75 | 9.88 | 18.0 | 2.75 | 18.0 | 9.88 | – | 12.5 |
| 4 | 102 | 4.00 | 12.0 | 24.0 | 3.50 | 24.0 | 12.0 | – | 15.5*** |
*** Sublink only.
Grade 100 Alloy Master Links
- Alloy Steel – Quenched and Tempered.
- Individually proof tested to values shown with certification.
- Proof tested with fixture sized to prevent localized point loading per ASTM A952.
- Proof test certification shipped with each link.
- All sizes are drop forged.
- “Look for the Platinum Color – Crosby Grade 100 Alloy Products.”
- Engineered Flat for use with S-1325A coupler link.
| Size | Mfg. # | CSI Ref. # | Designation Marking | Proof Load (lbs.) | Weight Each (lbs.) | Working Load Limit (lbs.)* | |
|---|---|---|---|---|---|---|---|
| (in.) | (mm) | ||||||
| 1/4 | 6-7 | 1011403 | CS-07-0970 | X 1 | 17,200 | 1.1 | 8,600 |
| 5/16 | 8 | 1011412 | CS-07-0971 | X 2 | 22,800 | 1.7 | 11,400 |
| 3/8 | 10 | 1011421 | CS-07-0972 | X 3 | 35,200 | 2.5 | 17,600 |
| 1/2 | 13 | 1011430 | CS-07-0973 | X 4 | 60,000 | 6.2 | 30,000 |
| 5/8 | 16 | 1011449 | CS-07-0974 | X 5 | 90,400 | 10.6 | 45,200 |
| 3/4 | 19 | 1011458 | CS-07-0975 | X 6 | 141,200 | 18.8 | 70,600 |
| 7/8 | 22 | 1011467 | CS-07-0976 | X 7 | 170,800 | 28.8 | 85,400 |
* Minimum Ultimate Load is 4 times the Working Load Limit.
| Size | Dimensions (in.) | |||
|---|---|---|---|---|
| (in.) | (mm) | A | B | C |
| 1/4 | 6-7 | 0.6 | 2.5 | 5 |
| 5/16 | 8 | 0.7 | 2.75 | 5.5 |
| 3/8 | 10 | 0.81 | 3 | 6 |
| 1/2 | 13 | 1.09 | 4 | 8 |
| 5/8 | 16 | 1.34 | 5 | 9 |
| 3/4 | 19 | 1.63 | 5.25 | 10.5 |
| 7/8 | 22 | 1.88 | 6 | 12 |
A-1345N Master Link Assembly
- Alloy Steel – Quenched and Tempered.
- Individually proof tested to values shown with certification.
- Proof tested with fixture sized to prevent localized point loading per ASTM A952.
- Proof test certification shipped with each link.
- All sizes are drop forged.
- “Look for the Platinum Color – Crosby Grade 100 Alloy Products.”
- Engineered Flat for use with S-1325A coupler link.
| Designation Marking | Mfg. # | CSI Ref. # | Grade 100 Chain Size | Proof Load (lbs.) | Working Load Limit (lbs.)* | |
|---|---|---|---|---|---|---|
| (in.) | (mm) | |||||
| X 2 | 1011501 | CS-07-0977 | n/a | 6 | 19,200 | 9,600 |
| X 3 | 1011510 | CS-07-0978 | 1/4-5/16 | 7-8 | 34,200 | 17,100 |
| X 4 | 1011529 | CS-07-0979 | 3/8 | 10 | 52,800 | 26,400 |
| X 5 | 1011538 | CS-07-0980 | 1/2 | 13 | 90,000 | 45,000 |
| X 6 | 1011547 | CS-07-0981 | 5/8 | 16 | 135,600 | 67,800 |
| X 7 | 1011556 | CS-07-0982 | 3/4 | 19 | 211,800 | 105,900 |
| X 8 | 1011565 | CS-07-0983 | 7/8 | 22 | 256,200 | 128,100 |
* Minimum Ultimate Load is 4 times the Working Load Limit.
| Designation Marking | Weight Each (lbs.) | Dimensions (in.) | ||||||
|---|---|---|---|---|---|---|---|---|
| A | B | C | D | E | F | G | ||
| X 2 | 2.9 | 0.7 | 2.75 | 5.5 | 0.5 | 1.57 | 3.35 | 0.24 |
| X 3 | 4.2 | 0.81 | 3 | 6 | 0.56 | 1.77 | 3.35 | 0.3 |
| X 4 | 9.6 | 1.09 | 4 | 8 | 0.75 | 2.36 | 3.94 | 0.33 |
| X 5 | 19.3 | 1.34 | 5 | 9 | 1 | 3.54 | 6.3 | 0.51 |
| X 6 | 31.4 | 1.65 | 5.25 | 10.5 | 1.25 | 3.94 | 7.09 | 0.65 |
| X 7 | 54.2 | 1.88 | 6 | 12 | 1.5 | 4.25 | 8 | 0.81 |
| X 8 | 112.2 | 2.25 | 8 | 16 | 1.88 | 6 | 12 | 0.88 |
Showing 1–18 of 46 results
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$9.67 3/8″ Crosby® G-341 Galvanized Weldless Sling Link
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$17.30 1/2″ Crosby® G-341 Galvanized Weldless Sling Link
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$22.69 5/8″ Crosby® G-341 Galvanized Weldless Sling Link
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$27.35 3/8″ Crosby® S-1325A Grade 100 Chain Coupler
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$34.50 3/4″ Crosby® G-341 Galvanized Weldless Sling Link
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$36.59 1 Ton Crosby® S-265 Weld-On Pivot Link
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$40.00 2.5 Ton Crosby® S-265 Weld-On Pivot Link
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$40.40 X2 5/16″ Crosby® A-1342N Grade 100 Alloy Master Link
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$41.25 3/8″ Crosby® A-1337 LOK-A-LOY® 10 Alloy Connecting Link
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$47.75 1/4″ Crosby® A-1337 LOK-A-LOY® 10 Alloy Connecting Link
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$48.45 7/8″ Crosby® G-341 Galvanized Weldless Sling Link
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$51.10 X3 3/8″ Crosby® A-1342N Grade 100 Alloy Master Link