--- product_id: 12078151 title: "312TRI Laminated Padlock with Key & Thermoplastic Shell, Blue, Pack of 3 Keyed-Alike, 1-9/16-inch" brand: "master lock" price: "€ 67.18" currency: EUR in_stock: true reviews_count: 13 category: "Master Lock" url: https://www.desertcart.be/products/12078151-312tri-laminated-padlock-with-key-and-thermoplastic-shell-blue-pack store_origin: BE region: Belgium --- # weather resistant thermoplastic shell 40mm laminated steel body dual ball bearing locking mechanism 312TRI Laminated Padlock with Key & Thermoplastic Shell, Blue, Pack of 3 Keyed-Alike, 1-9/16-inch **Brand:** master lock **Price:** € 67.18 **Availability:** ✅ In Stock ## Summary > 🔐 Secure smarter, not harder—lock in your peace of mind with style! ## Quick Answers - **What is this?** 312TRI Laminated Padlock with Key & Thermoplastic Shell, Blue, Pack of 3 Keyed-Alike, 1-9/16-inch by master lock - **How much does it cost?** € 67.18 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.be](https://www.desertcart.be/products/12078151-312tri-laminated-padlock-with-key-and-thermoplastic-shell-blue-pack) ## Best For - master lock enthusiasts ## Why This Product - Trusted master lock brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Pick & Pry Proof:** 4-pin cylinder and dual ball bearing lock deliver maximum resistance to picking and prying. - • **Unmatched Durability:** Laminated steel body and hardened shackle resist cutting and sawing for long-lasting security. - • **All-Weather Protection:** Blue thermoplastic shell shields against moisture, dirt, and grime—perfect for outdoor use. - • **Keyed-Alike Convenience:** One key opens all three locks—streamline your security without fumbling for multiple keys. - • **Trusted Brand Assurance:** Backed by Master Lock’s Limited Lifetime Warranty for peace of mind you can count on. ## Overview The Master Lock 312TRI pack includes three 40mm laminated steel padlocks with hardened 7mm shackles, all keyed alike for convenience. Featuring a weather-resistant blue thermoplastic shell and advanced 4-pin cylinder with dual ball bearing locking, these locks offer robust protection against cutting, picking, and harsh outdoor elements. Ideal for professionals seeking reliable, durable security solutions backed by a limited lifetime warranty. ## Description Product Description The Master Lock 312TRI Laminated Padlock with Key features a 1-9/16in (40mm) wide laminated steel body for maximum strength and reliability. The 9/32in (7mm) diameter shackle is 1-1/16in (27mm) long and made of hardened steel, offering extra resistance to cutting and sawing. A blue weather resistant thermoplastic shell is designed to add protection against moisture, dirt and grime. The 4-pin cylinder prevents picking and the dual locking ball bearings provide resistance against prying and hammering. The Limited Lifetime Warranty provides peace of mind from a brand you can trust. From the Manufacturer Master Lock 312TRI3-Pack of 1-9/16" Laminated Padlocks with Blue Thermoplastic Shell for outdoor protection Review: Nice keyed alike locks from a major brand - I think locks are mostly to keep honest people out. That being said, these locks are as sturdy and well made as one would expect. I have found that one of the key points is getting duplicate keys for your locks. Sometimes you need 3 or 4 keys for many locks. Hoping that the no-name brand of locks will have a commonly available key does not work for me. I’ll spend a little bit more on a name brand that I know I can get spare keys for. Review: Good in the rain - Had these locks on a trailer outside for 1 year without an issue. ## Features - Outdoor padlock with key features a blue weather resistant thermoplastic shell that provides outdoor protection against moisture, dirt & grime - Key padlock is constructed with laminated steel body and a hardened steel shackle for strength and security - Four-pin cylinder and dual ball bearing locking mechanism provides maximum pick and pry resistance - 1-9/16 in. (40 mm) wide lock body; 9/32 in. (7 mm) diameter shackle with 1-1/16 in. (27 mm) length and 5/8 in. (16 mm) width - Includes three padlocks, two keys; both keys open all locks ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00004Y8CG | | Additional Features | Weather Resistant | | Best Sellers Rank | #179,298 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #444 in Keyed Padlocks | | Brand | Master Lock | | Brand Name | Master Lock | | Color | Blue | | Control Method | App | | Controller Type | Hand Control | | Customer Reviews | 4.4 out of 5 stars 692 Reviews | | Finish Types | Laminated | | Global Trade Identification Number | 00071649093579 | | Included Components | Padlock | | Item Dimensions | 1.38 x 1.65 x 2.99 inches | | Item Type Name | Keyed Padlock | | Item Weight | 0.65 Kilograms | | Item dimensions L x W x H | 1.38 x 1.65 x 2.99 inches | | Lock Type | Key | | Manufacturer | Master Lock | | Manufacturer Part Number | 312TRI | | Manufacturer Warranty Description | Full Warranty | | Material | Alloy Steel | | Material Type | Alloy Steel | | Model Name | 312TRI | | Model Number | 312TRI | | Number of Pieces | 3 | | Recommended Uses For Product | Security | | Shape | Rectangular | | Smart Home Compatibility | Not Smart Home Compatible | | Special Feature | Weather Resistant | | Style Name | Modern | | UPC | 071649093579 | | Unit Count | 3.0 Count | ## Product Details - **Brand:** Master Lock - **Item dimensions L x W x H:** 1.38 x 1.65 x 2.99 inches - **Lock Type:** Key - **Material:** Alloy Steel - **Special Feature:** Weather Resistant ## Images ![312TRI Laminated Padlock with Key & Thermoplastic Shell, Blue, Pack of 3 Keyed-Alike, 1-9/16-inch - Image 1](https://m.media-amazon.com/images/I/51tT2TB4g1L.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Nice keyed alike locks from a major brand *by R***E on January 7, 2025* I think locks are mostly to keep honest people out. That being said, these locks are as sturdy and well made as one would expect. I have found that one of the key points is getting duplicate keys for your locks. Sometimes you need 3 or 4 keys for many locks. Hoping that the no-name brand of locks will have a commonly available key does not work for me. I’ll spend a little bit more on a name brand that I know I can get spare keys for. ### ⭐⭐⭐⭐⭐ Good in the rain *by M***N on May 20, 2026* Had these locks on a trailer outside for 1 year without an issue. ### ⭐⭐⭐⭐⭐ Works as advertised *by D***S on January 18, 2026* Works great. Just what I need for convenience in opening my doors. --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.be/products/12078151-312tri-laminated-padlock-with-key-and-thermoplastic-shell-blue-pack](https://www.desertcart.be/products/12078151-312tri-laminated-padlock-with-key-and-thermoplastic-shell-blue-pack) --- *Product available on Desertcart Belgium* *Store origin: BE* *Last updated: 2026-06-17*