Grade 80 Self Locking Hook for Webbing Sling HFS type
No.502055
The Grade 80 Clevis Self-Locking Hook (NCS Type) is a high-strength, premium rigging hook engineered to provide maximum load security and operational safety in demanding lifting and material-handling applications.
Automatic Self-Locking Mechanism: Features an advanced, spring-loaded grip latch that automatically engages and locks under load, critically preventing accidental release and ensuring superior job site safety.
Direct Clevis Connection: Built with a precise clevis pin attachment system that allows for fast, secure, and direct integration into Grade 80 chain sling assemblies without the need for additional connecting links.
Heavy-Duty Construction: Forged from expertly quenched and tempered Grade 80 alloy steel, offering exceptional durability and wear resistance in harsh industrial and construction environments.
Certified Safety: Rigorously proof-load tested with a robust 4:1 safety factor, featuring a clearly marked Working Load Limit (WLL) to guarantee compliance and operational reliability.
Flat Eye Design: Specifically engineered with a wide, flat eye to allow webbing slings to sit perfectly flat, extending sling life.
Self-Locking Safety: The hook closes and locks automatically under load. It cannot open while lifting, ensuring maximum safety.
Direct Connection: Eliminates the need for connecting links (Hammerlocks). Webbing can be sewn directly onto the hook.
Trigger Release: The recessed trigger design prevents the hook from being accidentally opened by catching on external objects.
Robust Construction: Manufactured from Forged Alloy Steel (Quenched & Tempered) with a 4:1 Safety Factor.
Why use a Flat Eye Webbing Hook?
Hook Type
Eye Shape
Effect on Webbing Sling
Standard Chain Hook
Small Round Eye
Problem Webbing bunches up, creating stress points and reducing sling strength (Point Loading).
Webbing Hook (This Product)
Wide Flat Eye
Solution Webbing sits flat, distributing load evenly across the entire width and extending sling life.
Technical Specifications
Item No.
Chain Size (mm)
WLL (t)
Main Dimensions (mm)
Weight (kg)
Product Code
A
H
W
T
D
L
8-HFS-10
10
3.15
26.5
28.5
47
16
58
199
1.8
502055010
8-HFS-13
13
5.3
30
40
51.5
19
70
256
3.52
502055013
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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