- 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.