Buy or Hire — Flexible Equipment Solutions Buy or Hire Available Buy or Hire Available Expert Advice — Call Call 01709 437141 UKCA Marked & CE Certified Equipment UKCA & CE Certified
Worldwide Export — International Delivery Available Worldwide Export Available UKCA & CE Certified Expert Advice — Call Call 01709 437141 Part of the Wolffkran Group — Since 1854 Wolffkran Group — 1854
HIRE & BUY
Free Fast Delivery Available
01709 437141
Optional Credit Account
1 / 5

Green Pin® Sling Shackle Bow Type with Safety Nut and Bolt Pin – GPSL

SKU GPSL
Inc VAT
£64.15
Ex VAT
£53.46
Estimated delivery: 1–3 days·Delivery from £11.99
✓ Secure checkout ✓ BACS & Proforma ✓ Credit account

Key features

  • ✓ Green Pin® Sling Shackle Bow Type with Safety Nut and Bolt Pin
  • ✓ Grade 8 alloy steel body and pin, quenched and tempered
  • ✓ Hot Dipped Galvanised finish
  • ✓ Inspection by a competent person at intervals not exceeding 12 months
Why WOLFF Onsite
170+ yrs

Part of Wolffkran heritage since 1854 — we trust the kit we sell

Price match

Seen it cheaper? Send us the quote and we'll try to match it

30 days

Returns on unused items in original packaging — full refund, no fuss

UK support

Lifting-gear specialists in Sheffield & London — phone & email

DownloadsShackles - UIPDF

A shackle is the connector that joins one part of a lifting assembly to another — sling to load, sling to hook, leg to master link. Two decisions define which one you need, and both matter more than price.

Bow or dee. A bow shackle has a wide rounded body that accepts several sling legs and tolerates load from varying directions. A dee is narrow and intended for a single leg loaded in line with the body. Put a multi-leg sling in a dee shackle and you side load it, which is outside its rating.

Screw pin or safety pin. A screw collar pin threads in by hand and comes out the same way, ideal for connections made and broken repeatedly. What it will not tolerate is anything that can rotate the pin — vibration, a shifting load, or a sling moving against it can unscrew it over time. For anything left rigged, use the safety nut and bolt version.

Manufacturer specification. Grade 8 alloy steel body and pin, quenched and tempered. Hot dipped galvanised finish up to 55t. 75t and above shackle body silver painted, pin green painted. Minimum breaking load is 5 times the W.L.L. Temperature range -20ºC up to +200ºC. 5% forging tolerance on inside width and length.

Key Features

  • Hot Dipped Galvanised finish: Identifies the range on site — never repaint a lifting or safety product
  • Minimum breaking load 5 times the W.L.L.: The safety factor built into the rating
  • Grade 8 alloy steel body and pin, quenched and tempered: As specified by the manufacturer
  • Hot dipped galvanised finish up to 55t: As specified by the manufacturer
  • 75t and above shackle body silver painted, pin green painted: As specified by the manufacturer
  • Minimum breaking load is 5 times the W.L.L. Temperature range -20ºC up: As specified by the manufacturer

Technical Specifications

Product Code W.L.L. (t) A (mm) B (mm) C (mm) D (mm) E (mm) F (mm) G (mm) H (mm) I (mm) J (mm) K (mm) L (mm) Weight (kg)
GPSL7 7 22 22 46 19 32 96 64 153 115 110 19 41 1.97
GPSL12.5 12.5 28 28 61 25 44 120 82 197 151 146 24 54 4.27
GPSL18 18 35 35 69 30 54 148 102 239 171 180 29 64 6.85
GPSL30 30 40 42 90 35 69 165 126 279 207 200 34 79 12.5
GPSL40 40 55 51 109 45 84 199 140 331 252 235 38 97 20.3
GPSL55 55 60 57 115 55 90 240 160 389 294 270 45 100 30.4
GPSL75 75 70 70 126 54 110 290 185 473 317 331 40 120 45
GPSL125 125 85 80 156 85 137 366 220 583 413 390 40 150 92
GPSL150 150 94 95 181 89 147 391 253 648 445 449 50 170 140
GPSL200 200 110 105 201 100 158 481 280 759 480 500 50 205 205
GPSL250 250 126 120 229 110 179 542 300 860 535 552 60 240 264
GPSL300 300 135 134 246 134 195 601 350 946 590 620 70 265 360
GPSL400 400 160 160 295 145 231 576 370 995 687 710 80 320 583
GPSL500 500 170 180 330 160 263 681 450 1161 762 850 90 340 862
GPSL600 600 190 200 360 170 289 741 490 1264 827 930 100 370 1,134
GPSL700 700 200 215 392 190 315 751 540 1284 879 901 100 400 1,142
GPSL800 800 218 230 420 200 342 851 554 1426 942 947 110 420 1,418
GPSL900 900 242 255 466 220 368 851 580 1488 1023 1023 120 440 1,810
GPSL1000 1000 260 270 490 240 399 851 614 1532 1103 1107 120 460 2,385
GPSL1250 1250 285 300 510 260 452 931 650 1666 1227 1182 150 530 3,110
GPSL1550 1550 285 320 550 280 483 950 680 1710 1300 1253 150 560 3,655

Full dimensional data and Working Load Limits for every size are given in the manufacturer information sheet.

Grade 8 | LOLER Ready

Grade 8 alloy steel body and pin, quenched and tempered. Hot dipped galvanised finish up to 55t. 75t and above shackle body silver painted, pin green painted. Minimum breaking load is 5 times the W.L.L. Temperature range -20ºC up to +200ºC. 5% forging tolerance on inside width and length. Under LOLER 1998, lifting accessories and Category III PPE require thorough examination by a competent person at intervals not exceeding 12 months, and immediate withdrawal after arresting a fall or any overload.

Suitable Applications

Joining slings to loads, connecting sling legs to master links, attaching to lifting points, and any connection in a lifting assembly. Bow shackles suit multi-leg slings and loads where the pull direction varies; dee shackles suit single legs loaded in line. Where the connection will be left rigged, subjected to vibration, or where anything could rotate the pin, specify the safety nut and bolt version.

More About This Product

Shackles are the most-handled component in any lifting operation, and that is precisely why they wear out first. A sling gets rigged and derigged; a shackle gets rigged, derigged, dropped, driven over, thrown into a box and picked up by whoever needs one. Most lifting gear fails from a single overload; shackles fail from accumulated inattention.

The grade markings matter more than most people realise. A Grade 6 high tensile shackle to BS EN 13889 and a Grade 8 alloy shackle look similar and share the same body shape, but the alloy version carries considerably more at the same size. Once a shackle is in a box with fifty others, the only way to tell them apart is the marking — which is why an unmarked shackle has to be scrapped no matter how good it looks.

Understanding the Load Path

A shackle has two distinct load-bearing elements and they do different jobs. The bow takes the sling; the pin takes the load. Reverse that — put the sling on the pin and the load on the bow — and two things happen. The sling bears on a smaller radius than it was designed for, and any movement in the sling starts to rotate the pin.

On a screw collar pin that rotation is the failure mechanism. A sling shifting under a settling load, or vibration transmitted from plant nearby, will slowly unscrew the pin over minutes or hours. It rarely happens quickly enough for anyone to see it happening.

The second consideration is angle. A shackle loaded in line with the pin carries its full rating. Loaded at an angle across the bow it carries substantially less, and published derating tables cover a limited range of angles — beyond that range no figure is published because none applies. On a multi-leg sling every leg is at an angle by definition, which is why the bow shackle exists and why putting a multi-leg sling into a dee shackle is a genuine mistake rather than a preference.

How to Use

  1. Screw the pin fully home: The pin must be completely engaged with the collar seated. A partially threaded pin carries a fraction of its rating.
  2. Load in line with the pin, not across it: Sling legs bear on the bow; the load bears on the pin. Never reverse that.
  3. Never use a screw pin where the pin could rotate: Vibration, a shifting load or a sling moving against the pin can unscrew it. Use the safety pin version.
  4. Watch the included angle on multi-leg slings: Wide angles increase leg loads substantially.
  5. Do not replace the pin with a bolt: The pin is a rated component matched to the body.
  6. Do not modify: Never weld, heat, machine, drill or repaint.

Warning: A screw collar pin can unscrew under vibration or if a sling moves against it. Never use a screw pin shackle for a connection left rigged, subject to vibration, or where anything could rotate the pin. Never substitute a bolt for the shackle pin.

Safety Information

  • Never exceed the marked Working Load Limit.
  • The pin must be screwed fully home with the collar seated.
  • Do not use a screw pin where vibration or movement could rotate the pin.
  • Load in line with the pin. Do not side load unless the shackle is rated for it.
  • Never substitute a bolt or non-original pin.
  • Derate for included angle on multi-leg slings.
  • Withdraw any shackle showing wear beyond the manufacturer’s stated limit, distortion, bow spreading, thread damage or cracks.
  • Never weld, heat treat, machine or repaint.

Inspection and Maintenance

Three checks. Measure the bow at its narrowest point and compare against original dimensions, since a shackle that has been overloaded spreads and the change can be subtle. Check the pin for straightness by rolling it on a flat surface, and inspect its thread and the tapped hole for damage, stripping and corrosion — a pin that will not seat fully cannot develop the rating. Look for wear at the crown and at the pin bearing points, which is where a shackle wears fastest, and withdraw at the manufacturer’s stated wear limit.

Downloads

Frequently Asked Questions

Q: Bow or dee shackle?

A bow shackle has a wide rounded body that accepts multiple sling legs and tolerates load from varying directions. A dee is narrow and takes a single leg loaded in line. Multi-leg slings need a bow; putting them in a dee side loads it, which is outside its rating.

Q: Screw pin or safety pin?

Screw pin for temporary connections made and broken repeatedly, since it fits and removes by hand. Safety nut and bolt for anything left rigged, subject to vibration, or where a sling could move against the pin and unscrew it.

Q: The split pin is missing on my safety shackle. Can I use it?

No. The split pin secures the nut, and without it the nut can back off. Fit the correct replacement from the manufacturer before use.

Q: What is the difference between Grade 6 and Grade 8 shackles?

Grade 6 high tensile to BS EN 13889 is the common general-purpose shackle. Grade 8 alloy carries considerably more at the same physical size, so a smaller and lighter shackle does the same work. They look similar once in a box, which is why the grade marking matters and why an unmarked shackle must be scrapped.

Q: What does the minimum breaking load of six times the W.L.L. mean?

That the shackle is designed to break at six times its marked working rating. That margin covers shock loading, wear, and the tolerances of manufacture — it is not spare capacity to be used. The Working Load Limit is the number you work to.

Q: Can I use a shackle that has been dropped?

Inspect it first, and if in doubt scrap it. A drop onto concrete can crack a shackle without leaving a visible mark, and cracks in alloy steel propagate under load. Shackles are cheap; the consequences are not.

Q: Why can I not use a bolt instead of the pin?

Because the pin is a rated component, heat treated and dimensioned to match the body. An ordinary bolt is not, and it is the commonest and most dangerous field substitution in rigging.

Q: How do I stop the pin unscrewing?

Use the safety nut and bolt version for anything left rigged, subject to vibration, or where a sling can move against the pin. A screw collar pin is for connections made and broken by hand within a shift, not left in place.

Q: Should shackles be galvanised?

Hot dipped galvanising is the norm for outdoor and marine work and adds years of life. Self colour is fine indoors. Never repaint a shackle: paint conceals cracks and destroys the grade marking.

Delivery Information

From our depot to your site, every order is fully tracked and delivered on our own WOLFF Onsite vehicles or via trusted courier partners. Delivery costs are calculated based on your postcode and order size.

Pallet Delivery
Dispatched within 1–2 working days, delivered next working day between 8am–5pm, Monday to Friday. Delivery cost is based on the number of pallet spaces and your delivery zone.

Parcel Delivery
Smaller items like radio accessories and safety equipment ship via tracked courier at a flat rate. Deliveries between 8:30am–5pm, Monday to Friday.

RENTAL Delivery / Collection
All rentals are delivered and collected by the WOLFF Onsite team. We'll confirm a delivery time that works for you and arrange collection within 3 working days of your hire end date. Deliveries and collections between 8am–5pm, Monday to Friday, Saturday collections can be arranged if suitable.

Dispatch Times
Orders placed by 1pm are dispatched same day where possible. Some products carry a manufacturing lead time, this is always stated in the product description.

Need Help?
Call us: 01709 437 141
Email: hello@wolffonsite.co.uk Available 8:30am - 5pm Mon-Fri

We are happy to help with any delivery or product questions.

Part of WOLFFKRAN, trusted since 1854