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Proboat Load Rated Galvanised D Shackle

Drop forged from high tensile grade 6 carbon steel

Hot dipped galvanised for corrosion resistance

Individually embossed with:

CE - the Working Load Limit - the body diameter in imperial measurement (D1)

The pin diameter is one size larger than the body for added strength

Select by body and pin diameter in metric equivalent

£3.00

More Information
Features

Load Rated Hot Dip Galvanised D Shackles

Load-rated bow shackles are much stronger and more durable than regular galvanised shackles for four good reasons:

  • Drop Forging Manufacturing Process:
    • Drop forging increases the break load and toughness of the steel by matching the grain line to the contours of the component.
    • Drop forging steel is stronger, more robust, and more dependable than machining, casting or fabricating (welding)
  • High Tensile Grade 6 Carbon Steel - stronger than standard mild steel
  • Narrower Jaw Width - the shorter span increases the flexural strength, reducing the potential deflection (bending)
  • Increased Pin Diameter - Larger cross-sectional area improves flexural strength (the ability to withstand a transverse bending force)

Load Rated D Shackles are finished with a hot dip galvanising treatment for extra corrosion resistance. 

Load Rated Shackles are appropriate for anchoring, mooring and other load-critical applications.

Each shackle is manufactured to US Fed Spec. RR-C-271 and embossed with:

  • CE = mark of approval
  • WLL =  The Working Load Limit
  • Size = The Body Ø (D1)

A certificate is available on request.

Load Rated Hot Dip Galvanised D Shackle Diagram

Load Rated Galvanised D Shackle Specifications
Part No. Ø D1 Body Ø D2 Pin Inside Length Jaw Width WLL
Tons
Safety Factor MBL
ED-905108 1/4" / 6mm 5/16" / 8mm 23.0mm 12.0mm 0.50 ton x6 3 ton
ED-905110 5/16" / 8mm 3/8" / 10mm 27.0mm 13.5mm 0.75 ton x6 4.5 ton
ED-905111 3/8" / 10mm 7/16" / 11mm 31.0mm 17.0mm 1.00 ton x6 6 ton
ED-905112 7/16" / 11mm 1/2" / 12mm 37.0mm 18.5mm 1.50 ton x6 9 ton
ED-905116 1/2" / 12mm 5/8" / 16mm 42.0mm 21.0mm 2.00 ton x6 12 ton
ED-905120 5/8" / 16mm 3/4" / 20mm 51.0mm 27.0mm 3.25 ton x6 19.5 ton
ED-905122 3/4" / 20mm 7/8" / 22mm 59.0mm 31.0mm 4.75 ton x6 28.5 ton
ED-905125 7/8" / 22mm 1" / 25mm 72.0mm 36.0mm 6.50 ton x6 39 ton
ED-905127 1" / 25mm 1 1/8" / 27mm 81.0mm 43.0mm 8.50 ton x6 51 ton
ED-905130 1 1/8" / 27mm 1 1/4" / 30mm 91.0mm 46.0mm 9.50 ton x6 57 ton
ED-905 136 1 1/4" / 30mm 1 3/8" / 36mm 95.0mm 51.0mm 12.00 ton x6 72 ton
ED-905138 1 3/8" / 36mm 1 1/12" / 38mm 112.0mm 57.0mm 13.50 ton x6 81 ton
ED-905141 1 1/2" / 38mm 1 5/8" / 41mm 124.0mm 60.0mm 17.00 ton x6 102 ton
ED-905150 1 3/4" / 45mm 2" / 50mm 146.0mm 73.0mm 25.00 ton x6 150 ton

WLL = Working Load Limit

MBL = Estimated Manufacturer Break Load

The Load Rating Safety Factor applied = 6:1

Therefore the estimated break load = WLL x 6

  • Shackle Type - D Shackle