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OK screw-lock carabiner black Petzl (M33A SLN) - Aluminum Carabiner - PETZL - 1
  • OK screw-lock carabiner black Petzl (M33A SLN) - Aluminum Carabiner - PETZL - 1
  • OK screw-lock carabiner black Petzl (M33A SLN) - Aluminum Carabiner - PETZL - 2

OK screw-lock carabiner black Petzl (M33A SLN)

€10.44 VAT Inc. €10.44 Without VAT

Black lightweight oval carabiner.

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"OK Screw-Lock black" product description

Light, oval and symmetrical safety carabiner of the Petzl brand made of aluminum.

The OK Screw-Lock carabiner with screw lock is designed to optimally position pulleys, ascenders or any other material with a wide section. It is an essential element for carrying out various maneuvers such as lifting loads, zip lines, guided rappels or hoists in which the fixed and centered positioning of the tension is very important.

The fluid interior design allows the rotation of the carabiner and limits the risk of locking in a stable point, perfect for the use of pulleys and ascenders. It has a Keylock system to facilitate handling and avoid snags and has been designed with a red indicator that warns of open closure. The screw closure system is simple and effective and can be operated with one hand, being the only one recommended in environments such as canyoning or caving where impurities (earth, mud...) can block automatic closure systems. In addition, the H-section type provides the best strength/lightness ratio.

The OK Screw-Lock carabiner has a resistance of 25 kN in major axis, a gate opening of 22 mm and has a weight of 70 grams. Approved under CE EN 362: 2004 B, EN 12275: 2013 B and UIAA-121 regulations.


  • Oval symmetrical shape so that the devices (pulleys, ascenders, etc.) are correctly positioned.
  • Made of aluminium.
  • Screw closure with Keylock system (body/trigger union system without closing notch) to prevent it from getting caught.
  • H-profile
  • Longitudinal resistance: 25 kN.
  • Transverse resistance: 8 kN.
  • Open resistance: 7 kN.
  • Opening: 22 mm.
  • Weight approximately 70 g.
  • Certifications: CE EN 362, EN 12275, UIAA-121.

References M33A SLN
Weight 70g
Lock system SCREW-LOCK
Colors black
Resistance major axis 25kN
Resistance minor axis 8kN
Open trigger resistor 7kN
Opening 22mm
Warranty 3 Years
Pack 1

Data sheet

EN362 Connectors

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