What is the difference between “one size”, “screw lock” and “triact lock”??

Not sure about one size, screw lock- it has a s screw lock on the gate of the carabiner, and tract lock is a triple locking action on a carabiner.

I would like to purchase 5 caribeners that have the green button dual lock system. which option do i choose? one size, screw lock or triact?

The one you are looking for is the ball lock, which we currently do not have. We have the screw lock in stock.

will this work with a Sterling ATS?

I am familiar with the Sterling ATS, but have not tried to use the Petzl with it. I suspect it will work/fit the connection hole in the Sterling.

This picture is not the petzl am'd pin lock, which product would i receive the am'd pin lock or the boll lock shown?

You would receive an AM'D Pin-Lock. We're working with Amazon to have that image corrected. Thanks!

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43509CFA

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Sold byAmazon SenegalDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔗 Elevate your climb with the carabiner that’s as smart as your next move.

SECURE EVERY MOVE - Triple-action locking systems (Triact-Lock & Ball-Lock) ensure foolproof safety on every ascent.
TWIST FREE STABILITY - Compatible with CAPTIV bracket to prevent twisting and maintain perfect alignment under load.
EFFORTLESS CONNECTIONS - Generous pear-shaped opening simplifies gear attachment and complex maneuvers like Munter hitch.
FEATHERWEIGHT STRENGTH - At just 75g, carry less, climb more with premium aluminium durability.
ABRASION RESISTANT DESIGN - H-profile structure maximizes strength-to-weight ratio while protecting against wear and tear.

The PETZL M36A BL WILLIAM is a lightweight, aluminium D-shaped carabiner designed for professional climbers and workplace positioning. Featuring a large pear-shaped opening for versatile connections, it offers advanced safety with triple-action locking systems and a keylock design to prevent snagging. Its compatibility with the CAPTIV positioning bracket ensures optimal load alignment and twist prevention, making it a trusted choice for secure, efficient, and comfortable climbing or abseiling.

Specifications

ASIN	B01ANZF4N4
Best Sellers Rank	150,875 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) 570 in Locking Carabiners
Brand Name	PETZL
Colour	Grey
Country Of Origin	France
Customer Reviews	4.8 4.8 out of 5 stars (399)
Global Trade Identification Number	03342540102453
Included Components	Carabiner
Item Shape	D-Shape
Item Weight	75 Grams
Lock Type	Ball Lock, Triact Lock
Manufacturer	Petzl
Material Type	Aluminium
Recommended Uses For Product	Abseiling
Unit Count	1.0 Count

Reviews

M**S

Veramente una bella squadra che da molta disponibilità e informazioni riguardo al campo dell’arrampicata e non solo!!!

8.07.2024

T**S

Nice quality.

11.08.2025

V**A

I prefer oversized biners for belay. Easy to use and no binding. I love Petzl biners and am a big fan of the twist and triac versions.

8.03.2025

A**D

Mousqueton très pratique, parfait pour l'escalade, Petzl est une marque fiable, acheté pour aller avec une sangle d'escalade Petzl et fonctionne très bien avec. Bien solide et bien fiable, je recommande

29.07.2022

H**S

Perfecte kwaliteit, kwam zorgvuldig verpakt aan. Ik ben hem nergens anders tegengekomen voor deze prijs.

16.02.2026

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