FORGED SHACKLES

Screw Pin Anchor Shackles
Screw Pin Chain Shackles
Bolt-type Anchor Shackles
Bolt-type Chain Shackles
Round Pin Anchor Shackles
Round Pin Chain Shackles
· Meet Federal Specification RR-C-271D

SPECIFICATIONS:
Nominal
Size
(in.)
Working
Load
Limit *
(t)
Dimensions
(in.)
Tolerance
+ / -
Inside
Width
Dia
Pin
Inside
Length
Anchor Type
Dia
Bow
Width
of Bow
Outside
of Eye
Inside
Lenght
Chain Type
Inside
Length
Inside
Width
1/4 1/2 .47 .31 1.13 .25 .78 .61 1.28 .06 .06
5/16 3/4 .53 .38 1.22 .31 .84 .75 1.47 .06 .06
3/8 1 .66 .44 1.44 .38 1.03 .91 1.78 .13 .06
7/16 1-1/2 .75 .50 1.69 .44 1.16 1.06 2.03 .13 .06
1/2 2 .81 .63 1.88 .50 1.31 1.19 2.31 .13 .06
5/8 3-1/4 1.06 .75 2.38 .63 1.69 1.50 2.94 .13 .06
3/4 4-3/4 1.25 .88 2.81 .75 2.00 1.81 3.50 .25 .06
7/8 6-1/2 1.44 1.00 3.31 .88 2.28 2.09 4.03 .25 .06
1 8-1/2 1.69 1.13 3.75 1.00 2.69 2.38 4.69 .25 .06
1-1/8 9-1/2 1.81 1.25 4.25 1.16 2.91 2.69 5.16 .25 .06
1-1/4 12 2.03 1.38 4.69 1.29 3.25 3.00 5.75 .25 .06
1-3/8 13-1/2 2.25 1.50 5.25 1.42 3.63 3.31 6.38 .25 .13
1-1/2 17 2.38 1.63 5.75 1.54 3.88 3.63 6.88 .25 .13
1-3/4 25 2.88 2.00 7.00 1.84 5.00 4.19 8.86 .25 .13
2 35 3.25 2.25 7.75 2.08 5.75 4.81 9.97 .25 .13

*   NOTE:  Maximum Proof Load is 2.0 times the Working Load Limit.  Minimum Ultimate Strength is 6 times the Working Load Limit. 

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