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Master Links and Assemblies
A-342 Master Link

A-345 Master Link Assembly

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"A"
Size
(in.)

    1/2
    5/8
    3/4

    7/8
      1
  1-1/4

  1-1/2
  1-3/4
     2

†† 2-1/4
†† 2-1/2
†† 2-3/4

†† 3
†† 3-1/4
†† 3-1/2

†† 3-3/4
†† 4
†† 4-1/4

†† 4-1/2
†† 4-3/4
†† 5
A-342
Stock
No.
(S.C.)

1014262
1014280
1014306

1014315
1014324
1014342

1014360
1014388
1014404

1014422
1014468
1014440

1014486
1014501
1014529

1015051
1015060
1015067

1015079
1015088
1015094
Working
Load
Limit
(lbs.)*

7,000
9,000
12,300

15,000
24,360
36,200

54,300
84,900
102,600

143,100
160,000
216,900

228,000
262,200
279,000

336,000
373,000
354,000

360,000
389,000
395,000
Weight
Each
(lbs.)

0.82
1.52
2.07

3.40
4.85
9.57

16.22
25.22
37.04

54.10
67.75
87.70

115
145
200

198
228
302

345
436
516
Proof
Load
(lbs.)**

14,000
18,000
28,400

30,000
48,700
72,400

113,200
169,800
205,200

289,200
320,000
433,800

456,000
524,400
558,000

672,000
746,000
708,000

720,000
778,000
790,000
B

2.50
3.00
2.75

3.75
3.50
4.38

5.25
6.0
7.0

8.0
8.0
9.5

9.0
10
12

10
10
12

14
14
15
C

5.00
6.00
5.50

6.38
7.00
8.75

10.50
12.00
14.00

16
16
16

18
20
24

20
20
24

28
28
30
D

3.50
4.25
4.25

5.50
5.50
6.88

8.25
9.50
11.0

12.5
13.0
15.0

15.0
16.5
19.0

17.5
18.0
20.5

23.0
23.5
25.0
E

6.00
7.25
7.00

8.14
9.00
11.25

13.5
15.5
18.0

20.5
21.0
21.5

24.0
26.5
31.0

27.5
28.0
32.5

37.0
37.5
40.0
Deformation
Indicator

3.0
3.5
3.5

4.5
4.5
5.5

6.5
7.5
9.0

-
-
-

-
-
-

-
-
-

-
-
-
* Minimum Ultimate Load is 5 times 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°.
** Proof test load equals or exceeds the requirement of ASTM A952(8.1) and ASME B30.9-1.4 for the chain size and number of legs.
††  Welded  Master Link.
"A"
Size
(in.)

3/4
1
1-1/4

1-1/2
1-3/4
2
A-345
Stock
No.
(S.C.)

1014734
1014752
1014770

1014798
1014814
1014832
Working Load Limit * †
(lbs.)

8,400
19,475
28,800

43,440
67,900
82,075
Weight
Each
(lbs.)

2.60
6.10
13.2

24.2
35.6
57.3
B

2.75
3.50
4.38

5.25
6.00
7.00
C

5.50
7.00
8.75

10.5
12.0
14.0
D

0.56
0.69
0.88

1.13
1.25
1.50
E

3.35
3.94
3.94

5.91
6.30
7.09
F

1.57
2.36
2.36

2.76
3.54
3.94
G

0.30
0.33
0.53

0.65
0.73
-
Deformation
Indicator

3.5
4.5
5.5

6.5
7.5
9.0
Flat Size

1/4"-5/16", 8mm
3/8", 10mm
1/2", 13mm

5/8", 16mm
3/4", 20mm
No Flat
† Ultimate Load is 5 times the Working Load Limit.
* Based on 60 degree included angle or smaller. For included angles greater than 60 degrees, the Working Load Limit must be de-rated.
Dimensions
(in.)
Dimensions (in.)