This Grade 80 Swivel Sling Hook (SWK Type) provides secure load attachment with free rotation, making it a versatile bottom fitting for chain sling assemblies.
Forged Alloy Steel: Made from quenched and tempered Grade 80 alloy steel for high strength and durability in demanding rigging applications.
Swivel Action: Rotating design allows the hook to align naturally with the load, reducing sling twist during lifting.
Safety Latch: Equipped with a spring-loaded safety latch to keep the load securely engaged during lifting operations.
Certified Safety: Complies with EN 1677 standards with a 4:1 safety factor, individually proof load tested.
This hook is a positioning device and is not intended to rotate under load. For a swivel sling hook designed to rotate under load, please refer to our Grade 80 Swivel Sling Hook with ball bearing.
Product Overview
The Grade 80 Swivel Sling Hook is a forged alloy steel rigging component engineered for heavy-duty overhead lifting applications. Manufactured from high-tensile Grade 80 steel and finished with a durable yellow powder coating, it is designed to work seamlessly with Grade 80 chain slings or wire rope assemblies fitted with a swivel eye connection.
Key Features
Free-rotating 360-degree swivel eye for effortless load alignment and positioning before lifting begins.
Spring-loaded latch (visible in the polished steel tongue) that automatically secures once the load is applied, preventing accidental disengagement.
Drop-forged, quenched and tempered alloy steel construction for a superior strength-to-weight ratio.
Individually proof-load tested and magnetic-particle (magnaflux) crack inspected after heat treatment to ensure structural integrity.
Compliant with EN 1677 performance requirements, with a standard safety factor of 4:1.
Bright yellow painted finish for high visibility on the job site and corrosion resistance.
Applications and Uses
This swivel hook is widely used in construction, ports, shipyards, mining, and heavy manufacturing wherever chain slings or wire rope slings need a reliable, rotatable connection point to a crane hook or lifting fixture. The self-locking latch design makes it especially suited for overhead lifting where operator safety and load security are critical, such as steel coil handling, precast concrete lifting, and machinery rigging.
Engineering & Quality Assurance
Material: Quenched and Tempered Alloy Steel.
Proof Load: Tested at 2.5 times WLL with certification for each batch manufactured.
Fatigue Rated: Tested for over 20,000 load cycles to ensure long-term durability.
Inspection: Magnaflux crack detection is performed 100% on each batch.
Technical Specifications
Item No.
Chain Size
WLL
Main Dimensions (mm)
Weight
Product Code
mm
ton
A
B
E
H
C
L
kg
8-SWK-08
7+8
2
35.5
88.5
27
23.5
25
190
0.85
502058008
8-SWK-10
10
3.15
42
104.5
32
29.5
34
233
1.54
502058010
8-SWK-13
13
5.3
49
135
40
38
41
291.5
3.04
502058013
8-SWK-16
16
8
61
161
45
45.4
53
352
5.36
502058016
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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