The Grade 100 Clevis C Hook (CCK Type) is a compact, high-strength hook designed for attaching Grade 100 chain sling legs directly to structural members, beams, or load points in tight spaces.
C-Shape Profile: The open C-shaped body allows for quick engagement and disengagement from beams or flanges without needing to thread the chain through.
Direct Clevis Attachment: The integrated clevis pin provides a fast, secure connection directly to Grade 100 chain links without extra hardware.
Grade 100 Strength: Forged from premium alloy steel, offering approximately 25% greater WLL than an equivalent Grade 80 hook for the same chain size.
Available Sizes: Offered for chain sizes 7/8mm (WLL 2.5t) and 10mm (WLL 4t), suitable for light to medium duty lifting assemblies.
*Wide throat opening for large pipes and trunnions
Product Features
Extra-Wide Throat: Designed with a significantly larger throat opening than standard sling hooks. This allows the hook to fit over large diameter pipes, trunnions, bars, or thick plates that standard hooks cannot accommodate.
Foundry & Industrial Application: Originally designed for foundry applications where heat might damage latch springs, or where operators cannot manually open a latch due to distance or hazard.
Direct Clevis Connection: Features an integrated clevis pin for direct attachment to Grade 100 Chain. This creates a strong, compact assembly without the need for extra connecting links.
Grade 100 Strength: Offers 25% higher lifting capacity than Grade 80 equivalents, making it lighter and easier to handle for heavy-duty tasks.
Safety Note: This is a Non-Locking hook (No Safety Latch). It relies on gravity and load tension to stay engaged. Care must be taken to prevent slack lines that could cause accidental disengagement.
Hook Selection: C-Hook vs. Sling Hook
Model
Throat Opening
Best Application
C-Hook / Foundry (CCK) (This Product)
Extra Wide
Large Objects. Perfect for pipes, thick plates, or foundry molds where a standard hook won't fit. No latch.
Sling Hook (CSH) (Standard)
Standard
General Lifting. Used for standard lifting eyes and shackles. Includes a safety latch for security.
Technical Specifications
Item No.
Chain Size (mm)
WLL (ton)
Main Dimensions (mm)
Weight (kg)
Product Code
A
B
C
H
L
M
E
10-CCK-08
7+8
2.5
9.5
36.5
21.5
27.3
125.5
9.5
20.5
0.54
505011008
10-CCK-10
10
4
12.5
48.5
27
32.4
169
12
27
1.05
505011010
Grade 100 Sling Components
Grade 100 Sling Components are high-strength alloy steel lifting accessories designed for heavy-duty lifting applications. Compared with Grade 80, Grade 100 offers higher working load limits (WLL) at the same size, or the same WLL with a smaller, lighter component.
What Does "Grade 100" Mean?
High-Strength Alloy: Heat-treated, quenched, and tempered steel.
Increased Capacity: Typically 25% higher WLL than Grade 80.
Safety Factor: Minimum breaking force ≈ 4 × WLL.
Standards: EN 818-4 / EN 818-6, ASTM equivalents.
Common Sling Components
1. Master Links
Used to connect the sling to the crane hook.
Master Link (ML)
Master Link Assembly (2-leg, 3-leg, 4-leg)
Pear-shaped master links
2. Hooks
End fittings for attaching loads.
Clevis Self-Locking Hook (Common)
Eye Self-Locking Hook
Sling Hook with Latch
Foundry Hook
Shortening Hook (Eye/Clevis)
3. Connecting Links
Used to join chain or components.
Clevis Connector
Hammerlock / Coupling Link
Repair Link (Special use only)
4. Special Components
For complex rigging scenarios.
Swivels (Bearing/Non-bearing)
Chain Adjusters
Lifting Rings (Rotating)
Grab Hooks
Grade 80 vs Grade 100 (Quick Comparison)
Item
Grade 80
Grade 100
Relative Strength
Base
+25% Higher
Sling Weight
Heavier
Lighter
Typical Marking
G80 / 8
G100 / 10
Cost
Lower
Higher
Identification & Markings
Every Grade 100 component must be clearly marked with:
Grade: G100 or 10
Manufacturer's Mark
Size or WLL
Traceability Code (Batch / Heat Number)
⚠️ Safety & Compatibility Warning
❌ NEVER mix Grade 100 with Grade 80 components in the same sling assembly.
✅ Use only Grade 100 chain + Grade 100 fittings together.
Regularly inspect for wear (>10%), cracks, deformation, heat damage, or corrosion.
G-80 Alloy Fittings / Grade 80 Sling Components
Grade 80 Sling Components are the long-established industry standard for chain slings and heavy lifting. Fully compliant with international lifting regulations and designed for durability.
What Does “Grade 80” Mean?
High-strength Alloy Steel
Min breaking force ≈ 4 × WLL
Heat-treated (Quenched & Tempered)
Standard: EN 818-4 / EN 818-6
Marked “G80” or “8”
Common Grade 80 Components
1. Master Links
Used to connect the sling to a crane or hoist hook.
Master Link (ML)
Master Link Assembly (Multi-leg)
Pear-shaped master links
2. Hooks
End fittings for secure load attachment.
Clevis Self-Locking Hook
Eye Self-Locking Hook
Sling Hook with Safety Latch
Foundry Hook
Grab Hook (Shortening)
3. Connecting Links
Essential hardware to join chains or fittings.
Clevis Connecting Link
Hammerlock / Coupling Link
Repair Link (Special use only)
4. Chain & Adjusters
The core lifting medium and adjustment tools.
Grade 80 Alloy Chain (Marked G80)
Shortening Clutch
Swivel (Bearing/Non-bearing)
Lifting Rings
Typical Applications
Chain slings (1 to 4 legs)
Construction & Civil Works
Manufacturing & Workshops
Steel Fabrication
General Industrial Lifting
Identification Marks
Grade: G80 / 8
Manufacturer’s ID
Size or WLL (Working Load Limit)
Traceability Batch Code
Grade 80 vs. Grade 100
Feature
Grade 80
Grade 100
Strength Level
Standard Industry Standard
+25% Higher
Component Size
Larger
Smaller (for same WLL)
Weight
Heavier
Lighter
Cost
More Cost-Effective
Higher
⚠️ Safety & Compatibility Notes
DO NOT mix Grade 80 components with other grades (G70, G100) in the same sling leg.
Always match Grade 80 chain with Grade 80 fittings.
Observe sling angle factors and WLL reductions during lifts.
Inspect regularly for: Wear (>10%), Cracks/Distortion, Corrosion, or Heat Damage.
Why Choose Grade 80?
✅ Proven Reliability✅ Wide Availability✅ Cost-Effective✅ Global Acceptance
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