The standard terminal fitting for a chain sling leg. A clevis connects directly to the chain end link with a pin, which removes the coupling link a conventional eye hook needs — one fewer component to buy, inspect and get wrong, and a shorter assembly.
The safety catch stops the load coming off the hook when the sling goes slack, which happens more often than people expect: as a load lands, as it settles, as a multi-leg sling takes up unevenly. It retains the load; it does not carry it.
**The Grade 8 version is rated -40 °C**, twenty degrees colder than the Grade 10 equivalent. For cold store, winter outdoor and refrigerated work that difference decides which grade you can use, and it runs against the usual assumption that the higher grade is always the better choice.
Key Features
- Clevis fitting: Pins straight to the chain end link. No coupling link, shorter assembly, one fewer component.
- Safety catch fitted: Retains the load when the sling goes slack.
- -40 °C rating on Grade 8: Against -20 °C for Grade 10, which is the deciding factor for cold work.
- BS EN 1677-2: The standard for sling hooks.
- Nine sizes: Chain 6 mm to 32 mm.
- Replacement catch kits available: CKCS for the Grade 80 range, CKSHX for Cobra Plus Grade 10. A broken catch is a repair, not a scrap.
- Full traceability marking and certificate supplied.
Technical Specifications
| Product Code |
Chain Dia (mm) |
A (mm) |
B (mm) |
E (mm) |
F (mm) |
H (mm) |
K (mm) |
L (mm) |
M (mm) |
N (mm) |
Ø (mm) |
Ø1 (mm) |
L1 (mm) |
| CG8CSH6 |
6 |
8 |
31.6 |
23.5 |
76.5 |
19.8 |
75.3 |
110 |
14 |
10 |
20 |
7.6 |
22 |
| CG8CSH8 |
7/8 |
9.5 |
36.6 |
22 |
84 |
25 |
86 |
128 |
18 |
12 |
25 |
9 |
26.5 |
| CG8CSH10 |
10 |
12.5 |
49 |
30 |
103 |
31 |
104 |
158 |
23 |
16 |
30 |
12.7 |
37 |
| CG8CSH13 |
13 |
16.5 |
56.5 |
37.5 |
132 |
42.5 |
128 |
198.3 |
27.5 |
15 |
35 |
16 |
38.5 |
| CG8CSH16 |
16 |
21.5 |
70.5 |
46.5 |
160 |
54 |
148 |
234 |
35 |
24 |
47.5 |
19.7 |
52.5 |
| CG8CSH20 |
20 |
24 |
77 |
55 |
186 |
58 |
176 |
274 |
42 |
32 |
59 |
24 |
60.5 |
| CG8CSH22 |
22 |
25 |
91 |
66 |
228 |
62 |
213 |
320 |
50 |
36 |
64 |
26 |
70 |
| CG8CSH26 |
26 |
30 |
117 |
85 |
257 |
75 |
251.6 |
389 |
60 |
34 |
78 |
33 |
87.5 |
| CG8CSH32 |
32 |
35 |
150 |
103 |
318 |
88 |
317 |
480 |
66 |
42 |
100 |
40.7 |
108.5 |
Grade 8: -40 °C to +200 °C, BS EN 1677-2, red painted finish. Grade 10: -20 °C to +200 °C, +25% capacity, blue painted finish.
BS EN 1677-2 | Grade 8 | -40 °C to +200 °C | LOLER Ready
Grade 8 alloy steel conforming to BS EN 1677-2 for sling hooks. Rated for continuous service from -40 °C to +200 °C, twenty degrees colder than the Grade 10 equivalent. Marked with material grade, manufacturer's identification, size, product ID mark and traceability code, and supplied with a certificate. Under LOLER 1998, thorough examination by a competent person at intervals not exceeding 12 months.
Suitable Applications
The terminal fitting on single and multi-leg chain sling assemblies for general lifting: fabrication, machinery handling, construction, plant maintenance and materials handling. The Grade 8 version specifically suits cold store, refrigerated and winter outdoor work where the -40 °C rating is needed. Grade 10 suits work where weight matters and the temperature range is not a constraint.
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 the Sling Hook
- Match the chain size and grade: The clevis is sized for one chain diameter and the assembly must be one grade throughout.
- Check the clevis pin is fully engaged and secured before every lift.
- Seat the load in the throat: Load bears in the throat, never on the tip. Tip loading is the classic cause of hook failure.
- Check the safety catch springs fully closed against the hook nose.
- Watch the temperature rating: -40 °C on Grade 8, -20 °C on Grade 10.
- Do not modify: Never weld, heat, machine, drill or repaint.
Warning: Never tip load a sling hook. Never use one with a missing or damaged safety catch — replacement catch kits are available and a repair takes minutes. Never exceed the Working Load Limit for the chain size.
Safety Information
- Use only with chain and components of the same size and grade.
- Load must bear in the throat, never on the tip.
- Confirm the safety catch closes fully before every lift.
- The safety catch retains the load, it does not carry it.
- Confirm the clevis pin is fully engaged and secured.
- Withdraw any hook showing throat opening, wear beyond the manufacturer’s stated limit, distortion or cracks.
- Never weld, heat treat, machine or repaint.
- Operating range -40 °C to +200 °C for Grade 8, -20 °C for Grade 10.
- Thorough examination by a competent person required at intervals not exceeding 12 months under LOLER 1998.
Inspection and Maintenance
Measure the throat opening against the original dimension at every thorough examination, since throat opening is the classic evidence of overload and develops progressively rather than suddenly. Check the tip and throat bearing surfaces for gouging and wear and withdraw at the manufacturer’s stated wear limit. Confirm the safety catch springs closed under its own tension and sits against the nose with no gap; a catch that closes sluggishly usually has grit or corrosion in the pivot. Inspect the clevis pin for straightness, wear and full engagement, and the pin bores for elongation.
Downloads
Frequently Asked Questions
Q: Clevis or eye hook?
A clevis pins directly to the chain end link, so no coupling link is needed: cheaper, shorter and one fewer component to inspect. An eye hook connects via a coupling link or component connector, which makes it easier to replace without disturbing the rest of the assembly. Both are common; the clevis is the simpler build.
Q: Grade 8 or Grade 10?
Grade 10 gives 25% more capacity for the same size. Grade 8 is rated -40 °C against Grade 10's -20 °C and costs less. For cold work, Grade 8 is the only option. Whichever you choose, keep the assembly consistent.
Q: The safety catch has broken. Do I scrap the hook?
No, provided the hook itself is serviceable. Replacement catch kits are available: CKCS for the Grade 80 range, CKSHX for Cobra Plus Grade 10. Check the throat opening and general condition first, since a new catch does not make a worn hook fit for use.
