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OK Lightweight Oval Aluminium Carabiner
SKU: Petzl | PZ-M33ATL
- Certified to CE EN 12275 Type B and CE EN 362
- 3-way TRIACT-LOCK automatic locking gate
- Keylock nose profile prevents snagging
- Symmetrical oval shape distributes load evenly
- Regular price
- £14.88 Ex VAT
- £17.86 Inc VAT
- RRP: £16.00 Ex VAT
- Sale price
- £14.88 £14.88 Ex VAT
- Regular price
-
- £17.86 £17.86 Inc VAT
Free Delivery Over £75 *
Worldwide Shipping from the UK
Trusted UK Arborist Retailer
30-Day Easy Returns
Product information & specifications
PETZL OK Lightweight Oval Aluminium Carabiner
The PETZL OK Lightweight Oval Aluminium Carabiner is designed for arborists, climbers and rope access professionals who require a reliable, versatile and lightweight locking connector. Its classic symmetrical oval shape makes it perfect for distributing load evenly, ideal for use with pulleys, friction devices, ascenders or anchoring systems in professional climbing and rescue applications, certified to CE EN 12275 Type B and CE EN 362.
Available in Silver and Black, it's in stock at Gustharts as an authorised Petzl dealer, with free UK delivery on this order.
This is a 3-way automatic locking carabiner (TRIACT-LOCK) — the gate locks itself closed and requires a deliberate three-stage action (raise, turn, then press) to open, reducing the risk of accidental opening under load. A Keylock nose profile also prevents the carabiner from snagging on rope, slings or harness gear during clipping and unclipping.
Key Features & Benefits
- Lightweight aluminium construction — provides strength without adding unnecessary weight
- Classic oval shape — ensures even load distribution for multi-directional loading, ideal for pulleys and wide-bodied devices
- 3-way automatic locking gate (TRIACT-LOCK) — locks itself closed, requiring a deliberate action to open
- Keylock nose — prevents snagging during clipping and unclipping
- Professional use — suitable for arborist, rescue and climbing applications
- Durable and corrosion-resistant — aluminium alloy withstands outdoor and industrial environments
Technical Details
Why Choose the Petzl OK?
Petzl is the reference brand in rope access and arborist climbing equipment, and the OK's symmetrical oval profile and H cross-section are specifically engineered for use with wide-bodied devices like pulleys, rope clamps and mobile fall arresters — where a standard D-shaped carabiner would sit awkwardly or load unevenly. The Keylock nose is a genuine practical upgrade over notched-gate carabiners, since it won't snag on rope sheaths or harness webbing during fast clipping.
Certified Protection Explained
CE EN 12275 Type B is the European standard for mountaineering connectors (basic carabiners), confirming the OK meets strength and durability requirements for general climbing and work-positioning use. CE EN 362 covers connectors used in personal fall protection systems, relevant when the OK is used as part of a fall-arrest or rescue setup.
Pairs Well With
- Petzl Climbing Ropes — pair with PETZL OK carabiners for secure anchoring
- Petzl Pulleys & Rigging — for rope systems and load distribution
- Arborist Harnesses — integrate carabiners into your PPE setup
- Climbing Helmets — essential for safety while using carabiners at height
Also Known As
Also searched for as: Petzl OK carabiner, Petzl TRIACT-LOCK, Petzl oval locking carabiner, Petzl pulley carabiner.
FAQs
Is this a locking carabiner?
Yes, it's a TRIACT-LOCK carabiner with a 3-way automatic locking gate — it locks itself and requires a deliberate raise-turn-press action to open.
Why is it oval-shaped rather than D-shaped?
The symmetrical oval shape distributes load evenly and is specifically suited to wide-bodied devices like pulleys, rope clamps and mobile fall arresters.
What's the difference between the major and minor axis strength?
Major axis strength (25kN) applies when the carabiner is loaded along its long axis as intended. Minor axis strength (8kN) applies to sideways loading, which should be avoided in normal use.
What does the Keylock nose do?
It's a snag-free nose profile that prevents the carabiner catching on rope, slings or harness webbing during clipping and unclipping.
What colours are available?
Silver and Black — both share identical specifications and certification.
Karabiners
| Standard | CE EN 362, 12275 type B, EAC, GB/T 23469 / B |
|---|---|
| Weight | 75 |
| MBS Open | 7kN |
| Gate Action | 3-Way Autolock |
| Gate Opening | 19mm |
| MBS Minor | 8kN |
| MBS Major | 24kN |
| Material | Aluminium |
PETZL OK Lightweight Oval Aluminium Carabiner
The PETZL OK Lightweight Oval Aluminium Carabiner is designed for arborists, climbers and rope access professionals who require a reliable, versatile and lightweight locking connector. Its classic symmetrical oval shape makes it perfect for distributing load evenly, ideal for use with pulleys, friction devices, ascenders or anchoring systems in professional climbing and rescue applications, certified to CE EN 12275 Type B and CE EN 362.
Available in Silver and Black, it's in stock at Gustharts as an authorised Petzl dealer, with free UK delivery on this order.
This is a 3-way automatic locking carabiner (TRIACT-LOCK) — the gate locks itself closed and requires a deliberate three-stage action (raise, turn, then press) to open, reducing the risk of accidental opening under load. A Keylock nose profile also prevents the carabiner from snagging on rope, slings or harness gear during clipping and unclipping.
Key Features & Benefits
- Lightweight aluminium construction — provides strength without adding unnecessary weight
- Classic oval shape — ensures even load distribution for multi-directional loading, ideal for pulleys and wide-bodied devices
- 3-way automatic locking gate (TRIACT-LOCK) — locks itself closed, requiring a deliberate action to open
- Keylock nose — prevents snagging during clipping and unclipping
- Professional use — suitable for arborist, rescue and climbing applications
- Durable and corrosion-resistant — aluminium alloy withstands outdoor and industrial environments
Technical Details
Why Choose the Petzl OK?
Petzl is the reference brand in rope access and arborist climbing equipment, and the OK's symmetrical oval profile and H cross-section are specifically engineered for use with wide-bodied devices like pulleys, rope clamps and mobile fall arresters — where a standard D-shaped carabiner would sit awkwardly or load unevenly. The Keylock nose is a genuine practical upgrade over notched-gate carabiners, since it won't snag on rope sheaths or harness webbing during fast clipping.
Certified Protection Explained
CE EN 12275 Type B is the European standard for mountaineering connectors (basic carabiners), confirming the OK meets strength and durability requirements for general climbing and work-positioning use. CE EN 362 covers connectors used in personal fall protection systems, relevant when the OK is used as part of a fall-arrest or rescue setup.
Pairs Well With
- Petzl Climbing Ropes — pair with PETZL OK carabiners for secure anchoring
- Petzl Pulleys & Rigging — for rope systems and load distribution
- Arborist Harnesses — integrate carabiners into your PPE setup
- Climbing Helmets — essential for safety while using carabiners at height
Also Known As
Also searched for as: Petzl OK carabiner, Petzl TRIACT-LOCK, Petzl oval locking carabiner, Petzl pulley carabiner.
FAQs
Is this a locking carabiner?
Yes, it's a TRIACT-LOCK carabiner with a 3-way automatic locking gate — it locks itself and requires a deliberate raise-turn-press action to open.
Why is it oval-shaped rather than D-shaped?
The symmetrical oval shape distributes load evenly and is specifically suited to wide-bodied devices like pulleys, rope clamps and mobile fall arresters.
What's the difference between the major and minor axis strength?
Major axis strength (25kN) applies when the carabiner is loaded along its long axis as intended. Minor axis strength (8kN) applies to sideways loading, which should be avoided in normal use.
What does the Keylock nose do?
It's a snag-free nose profile that prevents the carabiner catching on rope, slings or harness webbing during clipping and unclipping.
What colours are available?
Silver and Black — both share identical specifications and certification.
Karabiners
| Standard | CE EN 362, 12275 type B, EAC, GB/T 23469 / B |
|---|---|
| Weight | 75 |
| MBS Open | 7kN |
| Gate Action | 3-Way Autolock |
| Gate Opening | 19mm |
| MBS Minor | 8kN |
| MBS Major | 24kN |
| Material | Aluminium |
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Delivery & Returns
UK Delivery
Fast, reliable delivery from our UK warehouse.
- FREE UK Standard Delivery
applies to eligible UK orders over £75 ex VAT.
Estimated delivery: 2–4 working days
- UK Standard Delivery from £3.60 + VAT
Estimated delivery: 2–4 working days
- Next Working Day Delivery – £6.00 + VAT
Order before 3:00pm (Monday–Friday) for next working day delivery
All UK orders are dispatched Monday–Friday and sent via a tracked courier service.
International Delivery
We ship worldwide from the UK.
- Europe from £10.00
Estimated delivery: 2–7 working days - Rest of the World from £12.00
Estimated delivery: 2–11 working days
Shipping costs and delivery times are calculated at checkout based on destination and order contents.
Customs, Duties & Taxes
International orders may be subject to local import duties, taxes, or customs charges.
When UPS is selected at checkout, applicable duties and taxes are included in the total price. For other shipping services, duties and taxes may be charged separately on delivery and are the responsibility of the recipient.
Customs processing times may affect delivery estimates.
Returns
30-Day Return Policy
- Items can be returned within 30 days of delivery
- Products must be unused and in original condition
- Return postage costs apply unless the item is faulty or incorrect
For full details, please visit our Shipping & Returns page.
UK Delivery
Fast, reliable delivery from our UK warehouse.
- FREE UK Standard Delivery
applies to eligible UK orders over £75 ex VAT.
Estimated delivery: 2–4 working days
- UK Standard Delivery from £3.60 + VAT
Estimated delivery: 2–4 working days
- Next Working Day Delivery – £6.00 + VAT
Order before 3:00pm (Monday–Friday) for next working day delivery
All UK orders are dispatched Monday–Friday and sent via a tracked courier service.
International Delivery
We ship worldwide from the UK.
- Europe from £10.00
Estimated delivery: 2–7 working days - Rest of the World from £12.00
Estimated delivery: 2–11 working days
Shipping costs and delivery times are calculated at checkout based on destination and order contents.
Customs, Duties & Taxes
International orders may be subject to local import duties, taxes, or customs charges.
When UPS is selected at checkout, applicable duties and taxes are included in the total price. For other shipping services, duties and taxes may be charged separately on delivery and are the responsibility of the recipient.
Customs processing times may affect delivery estimates.
Returns
30-Day Return Policy
- Items can be returned within 30 days of delivery
- Products must be unused and in original condition
- Return postage costs apply unless the item is faulty or incorrect
For full details, please visit our Shipping & Returns page.
