Grade 80 Clevis Self Locking Hook With Grip Latch NCS Type
No.502021
The Grade 80 Clevis Self-Locking Hook with Grip Latch (NCS Type) is an advanced safety lifting component. It automatically closes under load and features an ergonomic grip design for enhanced operator safety during rigging operations.
Automatic Locking: The heavy-duty latch automatically closes and locks when tension is applied, securely preventing accidental load release.
Ergonomic Grip Latch: Designed with a specialized finger grip area, allowing operators to easily and safely open the hook even while wearing heavy work gloves.
Direct Clevis Attachment: Features a built-in clevis pin that enables quick, secure connection directly to Grade 80 lifting chains without extra coupling links.
Industrial Durability: Forged from premium Grade 80 alloy steel, securely supporting Working Load Limits (WLL) from 2 up to 8 tonnes with a reliable 4:1 safety factor.
*Automatically locks under load for maximum safety
Product Features
Ultimate Safety: The hook cannot open while under load. The positive locking latch engages with the hook body to form a continuous ring, preventing slip-offs.
Clevis Connection: Connects directly to Grade 80 chain links via a load pin. This streamlined design reduces weight and cost by removing the need for a Hammerlock.
Trigger Release: Designed with a recessed trigger that allows for easy, one-handed opening when the load is slack, but stays protected from accidental release during operation.
Certified Strength: Forged from high-strength Alloy Steel. Fully compliant with EN 1677-3 standards with a 4:1 Safety Factor.
Why Upgrade to Self-Locking Hooks?
Hook Type
Latch Type
Safety Level
Self-Locking Hook (This Product)
Positive Lock
Maximum Safety. Latch mechanically locks when loaded. Essential for construction sites and overhead lifting.
Sling Hook (Standard)
Spring Latch
Basic Retention. The spring latch only keeps the sling in place when slack. It does not lock under load.
Technical Specifications
Item No.
Chain Size (mm)
WLL (t)
Main Dimensions (mm)
Weight (kg)
Product Code
A
H
E
L
Φ
8-NCS-08
7+8
2
9.5
22
34
150
40
0.68
502021008
8-NCS-10
10
3.15
12.5
26
43
189
50
1.25
502021010
8-NCS-13
13
5.3
15
31
50
229
60
2.15
502021013
8-NCS-16
16
8
18.5
38
70
299
72
3.80
502021016
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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