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A-344
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A-347
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Alloy Steel - Quenched and Tempered.
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Design Factor of 4 to 1 for chain and 5 to 1
for wire rope.
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Individually proof tested to 2 times the
Working Load Limit (4:1), unless otherwise noted, with certification.
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Proof tested with fixture sized to prevent
localized point loading per ASTM A952.
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Larger inside width and length for use with
thimble.
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Each link has a Product Identification Code
(PIC) for material traceability, along with the size and the name Crosby &
U.S.A.
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Engineered Flat for use with S-1325A coupler
link.
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A-344
Welded Master Link
with Engineered Flat
Size
(in.) |
A-344
Stock
No.
|
Working
Load Limit
(lbs.) * |
Weight
Each
(lbs.) |
Dimensions
(in.) |
Engineered
Flat Size
for S-325A
(in.) - (mm) |
| 4:1 |
5:1 |
A |
B |
C |
G |
| 7/16 |
1256857 |
3500 |
2800 |
.5 |
.47 |
2.36 |
3.94 |
.24 |
1/4"-5/16",
7-8mm
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| 1/2 |
1256927 |
6000 |
4800 |
.7 |
.55 |
2.36 |
3.94 |
.30 |
1/4"-5/16",
7-8mm
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| 11/16 |
1256997 |
8800 |
7100 |
1.6 |
.67 |
3.54 |
6.30 |
.33 |
3/8",
10mm
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| 3/4 |
1257067 |
14300 |
11500 |
2.6 |
.79 |
3.54 |
6.30 |
.41 |
1/2",
13mm
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| 7/8 |
1257207 |
18100 |
14500 |
3.6 |
.87 |
3.94 |
7.09 |
.53 |
No
Flat
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| 1 |
1257277 |
25300 |
20300 |
7.1 |
.98 |
3.94 |
7.09 |
.65 |
5/8",
16mm
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| 1-1/8 |
1257377 |
26000 |
20800 |
8.5 |
1.10 |
5.51 |
10.63 |
-- |
No
Flat |
| 1-1/4 |
1257417 |
35300 |
28300 |
13.7 |
1.26 |
5.51 |
10.63 |
-- |
No
Flat
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* Ultimate Load is 4 times
the Working Load Limit. Based on 90 degree included angle or
smaller. For included angles greater than 90 degrees, the Working Load
Limit must be de-rated.
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A-347
Welded Master Link Assembly
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Size
(in.)
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A-347
Stock
No.
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Working Load Limit
(lbs.) *
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Weight
Each
(lbs.)
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Dimensions
(in.)
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Engineered
Flat Size
for S-325A
(in.) - (mm)
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4:1
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5:1
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A
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B
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C
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D
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E
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F
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G
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1/2
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1257690
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5300
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4300
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1.30
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.55
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2.36
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3.94
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.47
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3.35
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1.57
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.24
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No Flat
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11/16
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1257760
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7100
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5700
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3.65
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.67
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3.54
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6.30
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.55
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3.94
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2.36
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.30
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No Flat
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3/4
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1257830
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11000
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8800
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4.00
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.79
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3.54
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6.30
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.55
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3.94
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2.36
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.30
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1/4" - 5/16", 7-8mm
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7/8
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1257970
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17600
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14100
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6.90
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.87
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3.94
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7.09
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.67
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5.91
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2.76
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.33
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3/8", 10mm
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1-1/8
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1258140
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26500
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21200
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16.31
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1.10
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5.51
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10.63
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.87
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6.30
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3.54
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.53
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1/2", 13mm
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1-1/4
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1258180
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38400
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30720
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22.50
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1.26
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5.51
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10.63
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.98
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7.09
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3.94
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.65
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5/8", 16mm
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* Ultimate Load is 4 times the Working
Load Limit. Based on 90 degree included angle or smaller. For
included angles greater than 90 degrees, the Working Load Limit must be
de-rated.
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