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CLGR® High Tensile Shackles Bow Type Square Head Pin Blue Pin for Trawling

CLGR® High Tensile Shackles Bow Type Square Head Pin Blue Pin for Trawling, also called Blue Pin Square Head Bow Shackle, and some customers also call it as Trawl shackle bow type.


Certified to US Federal Specification RR-C-271 Grade A, this high tensile bow shackle is engineered for demanding marine and trawling applications.


Forged from 1045 steel with an alloy steel square head pin, it undergoes quenching and tempering for superior strength and durability, achieving a 6:1 safety factor for reliable performance under extreme loads. Available in self-colored, zinc-plated, or hot-dip galvanized finishes, with the blue pin option providing enhanced corrosion resistance and visibility in marine environments.


Its square head pin design prevents rope tangling and ensures secure connections for trawl gear, fishing nets, chains, and rigging systems.


Ideal for offshore operations, commercial fishing, and heavy-duty marine applications, this shackle is offered in sizes from 3/16" to 2-1/2". Custom specifications and identification marks can be provided to meet specialized project requirements.

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high-tensile-bow -shackle-square-head-pin -blue-painted-china

Overview of CLGR® High Tensile Shackles Bow Type Square Head Pin Blue Pin 

BrandCLGR®

Technical Notes

US Fed. Spec. RR-C-271, Grade A

Material

Body: 1045 Steel

Square Head Pin: Alloy Steel

Shackle ShapeBow Shackle
PinSquare Head Pin

Safety Factor

6:1

Processing

Forged / Quenched and Tempered.

Finish

Self- colored / Zinc plated, Hot dipped galvanized.

Size

3/16″, 1/4″, 5/16″, 3/8″, 7/16″, 1/2″, 5/8″,

3/4″, 7/8″, 1″, 1-1/8″, 1-1/4″, 1-3/8″,

1-1/2″, 1-3/4″, 2″, 2-1/2″

Tips

Special specification and marks can be made according to customers' requirements


Specifications of CLGR® High Tensile Shackles Bow Type Square Head Pin Yellow Pin 

drawing-clgr-high-tensile-shackle-bow-type-square-head-pin-trawling CLGR® High Tensile Shackles Bow Type Square Head Pin Yellow Pin for Trawling

Part No.

Size

WLL

Weight

Dimensions (in.)

Tolerance +/-

(in.)

(t)

(lbs)

A

B

C

E

G

H

L

P

C

A

CRBSSHPUS316

3/16″

1/3

0.06

0.38

0.25

0.88

0.6

0.98

1.47

0.16

0.19

0.06

0.06

CRBSSHPUS14

1/4″

1/2

0.1

0.47

0.31

1.13

0.78

1.28

1.84

0.19

0.25

0.06

0.06

CRBSSHPUS516

5/16″

3/4

0.19

0.53

0.38

1.22

0.84

1.47

2.09

0.22

0.31

0.06

0.06

CRBSSHPUS38

3/8″

1

0.31

0.66

0.44

1.44

1.03

1.78

2.49

0.25

0.38

0.13

0.06

CRBSSHPUS716

7/16″

1-1/2

0.38

0.75

0.5

1.69

1.16

2.03

2.91

0.31

0.44

0.13

0.06

CRBSSHPUS12

1/2″

2

0.72

0.81

0.63

1.88

1.31

2.31

3.28

0.38

0.5

0.13

0.06

CRBSSHPUS58

5/8″

3-1/4

1.37

1.06

0.75

2.38

1.69

2.94

4.19

0.44

0.69

0.13

0.06

CRBSSHPUS34

3/4″

4-3/4

2.35

1.25

0.88

2.81

2

3.5

4.97

0.5

0.81

0.25

0.06

CRBSSHPUS78

7/8″

6-1/2

3.62

1.44

1

3.31

2.28

4.03

5.83

0.5

0.97

0.25

0.06

CRBSSHPUS01

1″

8-1/2

5.03

1.69

1.13

3.75

2.69

4.69

6.56

0.56

1.06

0.25

0.06

CRBSSHPUS118

1-1/8″

9-1/2

7.41

1.81

1.25

4.25

2.91

5.16

7.47

0.63

1.25

0.25

0.06

CRBSSHPUS114

1/1/4″

12

9.5

2.03

1.38

4.69

3.25

5.75

8.25

0.69

1.38

0.25

0.06

CRBSSHPUS138

1-3/8″

13-1/2

13.53

2.25

1.5

5.25

3.63

6.38

9.16

0.75

1.5

0.25

0.13

CRBSSHPUS112

1-1/2″

17

17.2

2.38

1.63

5.75

3.88

6.88

10

0.81

1.62

0.25

0.13

CRBSSHPUS134

1-3/4″

25

27.78

2.88

2

7

5

8.86

12.34

1

2.25

0.25

0.13

CRBSSHPUS2

2″

35

45

3.25

2.25

7.75

5.75

9.97

13.68

1.22

2.4

0.25

0.13

CRBSSHPUS212

2-1/2″

55

85.75

4.13

2.75

10.5

7.25

12.87

17.84

1.38

3.13

0.25

0.25

Products

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We design, manufacture and distribute products and provide services for lifting and material handling applications, the construction metal industry, the trawl industry and the yacht accessories industry.
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