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Welded Master Link and Master Link Assembly

  • Alloy Steel – Quenched and Tempered
  • Suitable for use with Grade 80 chain
  • Design Factor of 4 to 1 for chain and 5 to 1 for wire rope
  • Larger inside width and length for use with thimble
  • Engineered flat for use with Chain Coupler Link
  • Individually Proof Tested to 2 times the Working Load Limit (4:1), unless otherwise noted, with certification
  • Proof tested with fixture sized to prevent localized point loading per ASTM A952

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
1/2 1256927 6000 4800 .7 .55 2.36 3.94 .30 1/4″-5/16″, 7-8mm
11/16 1256997 8800 7100 1.6 .67 3.54 6.30 .33 3/8″, 10mm
3/4 1257067 14300 11500 2.6 .79 3.54 6.30 .41 1/2″, 13mm
7/8 1257207 18100 14500 3.6 .87 3.94 7.09 .53 No Flat
1 1257277 25300 20300 7.1 .98 3.94 7.09 .65 5/8″, 16mm
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

*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.

WELDED MASTER LINK ASSEMBLY

Size
(in.)
A-347
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 D E F G
1/2 1257690 5300 4300 1.30 .55 2.36 3.94 .47 3.35 1.57 .24 No Flat
11/16 1257760 7100 5700 3.65 .67 3.54 6.30 .55 3.94 2.36 .30 No Flat
3/4 1257830 11000 8800 4.00 .79 3.54 6.30 .55 3.94 2.36 .30 1/4″ – 5/16″, 7-8mm
7/8 1257970 17600 14100 6.90 .87 3.94 7.09 .67 5.91 2.76 .33 3/8″, 10mm
1-1/8 1258140 26500 21200 16.31 1.10 5.51 10.63 .87 6.30 3.54 .53 1/2″, 13mm
1-1/4 1258180 38400 30720 22.50 1.26 5.51 10.63 .98 7.09 3.94 .65 5/8″, 16mm

*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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