Grade 80 Eye Self Locking Hook with Grip Latch NES type
No.502020
The Grade 80 Eye Self-Locking Hook with Grip Latch (NES Type) is designed for safe and reliable overhead lifting. Its automatic locking mechanism ensures secure load capture during rigorous industrial operations.
Universal Eye Connection: Easily connects to Grade 80 chains, wire ropes, and synthetic slings using mechanical coupling links.
Automatic Locking: Latch automatically closes under tension and stays locked under load, preventing accidental release.
Grip Latch Stability: The specialized grip latch locks directly into the hook point for superior lateral stability.
Certified Safety: Forged from Grade 80 alloy steel (EN 1677), featuring a 4:1 safety factor and a durable powder-coated finish.
Grade 80 Alloy SteelAutomatic LockingUniversal EyeEN Standard
*Automatically locks under load for maximum safety
Product Features
Automatic Locking: The hook automatically closes and locks as soon as the load is lifted. It cannot open under load, ensuring maximum safety even during vibration.
Universal Eye Connection: The round eye design allows for flexible connection to wire rope slings (via thimbles), synthetic slings, or chain slings via a Connecting Link.
Recessed Trigger: Designed with a recessed release trigger that is easy to operate (even with gloves) but protected against accidental activation.
Grip Latch Design: The latch engages positively with the hook tip, creating a smooth, snag-free profile that protects the latch mechanism from impact damage.
Material: Forged from high-strength Grade 80 Alloy Steel, Quenched and Tempered.
Self-Locking Hook: Eye vs. Clevis
Type
Connection
Best For
Eye Self-Locking (NES / This Product)
Round Eye Universal
Wire Rope & Mixed Use. Best if you are using wire rope slings (fits thimbles) or need to connect via a Hammerlock.
Clevis Self-Locking (NCS Type)
Clevis Pin Chain Only
Chain Slings. Pins directly to the chain link. Faster assembly, fewer parts, lighter weight.
Why Upgrade to Self-Locking?
Feature
Standard Hook
Self-Locking Hook (NES)
Safety Latch
Spring Latch Can break or bend
Positive Lock Fail-safe Mechanism
Reliability
Risk of Opening If load goes slack
Locks Under Load Cannot open while lifting
Technical Specifications
Item No.
Chain Size (mm)
WLL (t)
Main Dimensions (mm)
Weight (kg)
Product Code
Φ1
H
E
L
Φ
8-NES-08
7+8
2
25
22
34
164
40
0.68
502020008
8-NES-10
10
3.15
32
26
42
201.5
50
1.30
502020010
8-NES-13
13
5.3
40
31
50
243.4
60
2.06
502020013
8-NES-16
16
8
50
38
70
299
72
3.73
502020016
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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