TWIST LOCK for BAG - 36 x 47 mm

LacariaRicami Bag Twist Lock – 36x47mm with Foldable Prongs

Zamak metal | 36x47mm | Mounting with prongs and screws

📋 Key Features

• Dimensions36 x 47 mm
• MaterialZamak metal
• MountingFoldable prongs + screws
• CompatibilityFabric, faux leather, leather up to 3mm
• FinishAvailable in multiple colors
• Ideal forCrochet bags, totes, handmade backpacks
• PackageComplete set with screws included

🧵 The accessory

The 36x47mm twist lock is an essential metal accessory for finishing crochet bags, totes, and handmade backpacks with a professional, functional closure. Made of durable zamak metal, it ensures long-lasting use, even with intense daily wear. The 36x47mm size is ideal for medium and large bags where a visible yet unobtrusive closure is needed.

The mounting system combines foldable prongs for the rotating turn-lock and screws for the base, allowing secure application on crochet fabrics, faux leather, and natural leather up to 3mm thick. Available in various color finishes to match the style of your creation.

🧬 Material and construction: why it works

Zamak metal (an alloy of zinc, aluminum, magnesium, and copper) was chosen for this closure because it offers the best balance between mechanical strength and low weight. Unlike pure brass, zamak does not oxidize easily and retains its polished finish over time. Its specific weight ensures that the lock stays in place without weighing down the bag—a crucial aspect for crochet creations where the fabric is softer.

The rotating twist mechanism is built with precise tolerances that allow for smooth rotation without excessive play. This means the closure opens and closes with a natural motion, without force, but remains firmly in place when locked. The foldable prongs are made of ductile metal that bends without breaking, ensuring a permanent attachment to the fabric.

📦 Dimensions and compatibility

The 36x47mm dimensions indicate the width and height of the rotating part, respectively. This format is compatible with bags that have a flap (closure tab) at least 40mm wide and 50mm high. For mounting, you will need to leave a hole in your work of approximately 30x20mm to pass the base with the screws through.

The closure works perfectly on crochet fabrics made with yarn or cord, on 1.5-2mm faux leather, and on natural leather up to 3mm thick. It is not suitable for fabrics that are too thin (single-ply cotton) because the prongs would not have enough grip, nor for rigid materials like saddlery leather thicker than 4mm.

🧶 How to install: detailed instructions

Installing the twist lock requires two distinct phases. Phase 1: Mounting the base with screws. Ensure you leave a slot in the flap work, with internal dimensions of approximately 30x20mm. Place the outer plate on the visible part of the flap and the inner plate on the back, aligning them through the slot. Secure the two plates with the provided screws using a small Phillips-head screwdriver, tightening until the plates are firm but without deforming the fabric.

Phase 2: Mounting the turn-lock with prongs. Calculate the exact height to position the turn-lock on the bag body so that it fits perfectly into the base when the flap is closed. Make a small cut or hole in the fabric (use an awl for crochet work). Insert the turn-lock prongs into the hole from the outside to the inside. From the inside of the bag, insert the reinforcement plate onto the prongs and bend them outward with pliers, pressing them firmly against the plate. The lock is now permanently secured.

✨ Why choose this twist lock

Unlike magnetic closures, the twist lock provides a visible, decorative closure that becomes part of the bag's design rather than a hidden element. It is the ideal choice when you want the closure to contribute to the overall aesthetic of your project. Compared to snap or button closures, the twist lock is quicker to open and close with one hand—a practical benefit for daily use.

The real advantage you'll notice when using this closure is the feeling of solidity and quality when you open and close your bag. The weight of the metal, the smooth rotation of the lock, and the crisp "click" when it engages with the base immediately convey the impression of a well-made accessory, not a cheap product. This makes all the difference if you are making bags to sell or give as gifts.

🎨 What you can create

This closure is perfect for medium and large crochet bags where a functional yet decorative closure is needed. Ideal for travel totes and gym bags made of faux leather or technical fabric, where durability is paramount. Also excellent for city backpacks with front flaps and handmade crossbody bags in vintage or boho styles.

👩‍🎨 Who it is for

Installing this closure requires intermediate manual skills: if you have already made at least one crochet bag or sewn faux leather accessories, you will have no trouble. The trickiest part is calculating the position of the turn-lock relative to the base with precision, but with a little care and by following the instructions, the result is guaranteed. No special tools are required—just a Phillips-head screwdriver and an awl or a pair of pointed scissors.

This closure is typically purchased by hobbyists making crochet bags for personal use or gifts, by artisans selling handmade accessories on Etsy or at markets, and by amateur leatherworkers working on small batches of faux leather. If you are a beginner, we recommend practicing installation on a scrap piece of fabric before applying it to your finished bag.

🧼 Maintenance and care

• CleaningSoft dry or slightly damp cloth
• AvoidAggressive detergents, alcohol, acetone
• StorageAvoid humid environments to prevent oxidation
• LubricationA drop of silicone oil on the pin if it becomes stiff
• Periodic checkCheck screw tightness every 6 months

📌 Important note

📊 Technical Data Summary