--- title: "Bolt Preload App" description: "Read bolt preload, temperature and proof load directly on your phone with the Strainlabs App. No gateway, no installation and no internet connection required." url: "https://strainlabs.clearagency.ai/our-solution/strainlabs-app" canonical: "https://strainlabs.clearagency.ai/our-solution/strainlabs-app" markdown_url: "https://strainlabs.clearagency.ai/our-solution/strainlabs-app.md" site: "Smart Bolts by Strainlabs" publisher: "Smart Bolts by Strainlabs" language: "en-GB" updated: "2026-11-11" breadcrumbs: - "Home: https://strainlabs.clearagency.ai/" - "Our Solution: https://strainlabs.clearagency.ai/our-solution" - "Bolt Preload App: https://strainlabs.clearagency.ai/our-solution/strainlabs-app" translations: - "sv-SE: https://strainlabs.clearagency.ai/sv/losningar/strainlabs-app" x_default: "https://strainlabs.clearagency.ai/our-solution/strainlabs-app" --- # Bolt Preload App > Read bolt preload, temperature and proof load directly on your phone with the Strainlabs App. No gateway, no installation and no internet connection required. ## Verify bolt preload in seconds with the Strainlabs App The Strainlabs App reads Strainlabs Bolts on-site via Bluetooth and shows preload, temperature, proof load and battery status directly on your phone. [I want to know more](#contact-form) ![Strainlabs App on a phone beside a Strainlabs Bolt](https://strainlabs.clearagency.ai/media/mwcibs5u-wcta6sfd.webp) - Verify preload in seconds - No gateway or setup - Works offline - READ ON-SITE — Scan nearby Strainlabs Bolts via Bluetooth and see current status directly in your phone. - STORE HISTORY IN THE BOLT — Choose how long data is stored: 1, 5, 30, 90 or 300 days. - CUSTOMIZE THE SCAN — Choose how long the app searches for nearby bolts: 1, 5, 15, 30 or 60 minutes. Strainlabs App Answers on-site, without extra equipment During installation, service or inspection, you need the answer to one simple question: is the preload correct? But getting that answer on-site is rarely straightforward. Traditional verification often requires separate equipment, calibration or access to systems that aren’t available where the work is done. At remote sites, in the field or during emergency service, it gets even harder. The result: checks take longer than they should, or don’t happen at all. Strainlabs App displays preload in kilonewtons, directly in your phone, in seconds. Available for iOS and Android. Strainlabs BLE Bolt measures and stores data inside the bolt Bluetooth SLB006E2 16 kN Tension 23 kN Proof Load 22 °C Temp 76 % Battery 16 kN Avg Tension 1 Readings Tension Status Current: 16 kN Min: 14 kN Warning: 19 kN Proof: 23 kN Reading History Latest View All Time Tension Temp Battery 14:32:02 16 kN 22°C 76% Strainlabs App full bolt status in seconds _Strainlabs App_ ### The cost of uncertainty A bolted connection tightened incorrectly doesn’t start failing at the next inspection. It starts failing immediately – under load, in operation. Too high preload wears down the material. Too low and it loses grip under vibration. And since no one has seen the actual level at assembly, the fault only shows when something has already gone wrong: a consequential failure, an unplanned stoppage, an inspection that came too late. The same applies during service. When a check requires scaffolding, fall protection and connectivity, it becomes time-consuming – and is therefore performed less often than it should be. The question isn’t whether you have time to verify your critical bolted connections. It’s whether you can afford not to. ![Strainlabs App showing bolt readings on a phone](https://strainlabs.clearagency.ai/media/mwci4w6b-i35wlykb.webp) _Strainlabs app_ ### Three problems, solved on-site From “tighten and hope” to “scan and know”. Correct assembly from the start. You see the actual preload the moment you tighten, not a torque value you hope corresponds to the right level. Right from the start, no unnecessary return visits. Faster and safer inspections. Walk up to the bolted connection, start a scan and read the status on your phone. No wrench, no guesswork and less time in elevated or hard-to-reach locations. Nothing to install. The app connects to the bolt via Bluetooth and works offline. No router, no network, no platform to set up. You get real data from day one — anywhere. ![Strainlabs App bolt status screen](https://strainlabs.clearagency.ai/media/mwci2yo7-4ablrque.webp) _Strainlabs app_ ### See the full status in seconds Strainlabs App reads the Strainlabs Bolt via Bluetooth. You don’t need connectivity or an installed system, just your phone and the bolt. In just a few seconds, you can see: Preload (in kN) Temperature Proof load Battery History and bolt information How it works: Strainlabs Bolt continuously measures preload and temperature and sends data to the app where it can be stored. With the app, you can read the data on-site via Bluetooth and choose how long the history is stored: 1, 5, 30, 90 or 300 days. ![A bolt sending data to a phone via Bluetooth](https://strainlabs.clearagency.ai/media/mwci974a-rtojsnxg.webp) _Strainlabs app_ ### App or Strainlabs Analytics? Strainlabs App is the right choice when you want quick on-site checks. Walk up to the bolt, scan via Bluetooth and see status directly in your phone. No router, no network and no digital twin required. Strainlabs Analytics is the right choice when you want continuous remote monitoring, alerts, trends, a digital twin and consolidated history across multiple installations. Strainlabs App gives you answers on-site. Analytics gives you monitoring over time. ![Strainlabs Analytics on a laptop](https://strainlabs.clearagency.ai/media/mwciblk4-8qw5ic3z.webp) ### Send us a message: This section is a form (“Strainlabs App enquiry”) that visitors fill in on the web page. It asks for: - **Name** (required): short text - **Company** (optional): short text - **Phone** (optional): short text - **Work Email** (required): email address - **Message** (optional): free text It is sent with the “Send” button and goes to the Smart Bolts by Strainlabs team. ### Discover the Strainlabs solution Get to know us to learn more about Internet of Bolts, Preload Monitoring and how Strainlabs System can benefit your operations. This section is a form (“Discover the Strainlabs solution”) that visitors fill in on the web page. It asks for: - **Your name** (required): short text - **Company** (optional): short text - **Phone** (optional): short text - **Work Email** (required): email address - **Message** (optional): free text It is sent with the “Send” button and goes to the Smart Bolts by Strainlabs team. ## Related pages **Part of** - [Our Solution](https://strainlabs.clearagency.ai/our-solution) ([Markdown](https://strainlabs.clearagency.ai/our-solution.md)): Our Solution **Alongside this page** - [Strainlabs analytics](https://strainlabs.clearagency.ai/our-solution/strainlabs-analytics) ([Markdown](https://strainlabs.clearagency.ai/our-solution/strainlabs-analytics.md)): Strainlabs Analytics turns raw preload measurements into trends, alerts and actionable insight. - [Strainlabs bolts](https://strainlabs.clearagency.ai/our-solution/strainlabs-bolts) ([Markdown](https://strainlabs.clearagency.ai/our-solution/strainlabs-bolts.md)): Smart bolts with built-in sensors that monitor preload every 10 minutes, helping you detect changes before failure or downtime. - [Strainlabs routers](https://strainlabs.clearagency.ai/our-solution/strainlabs-routers) ([Markdown](https://strainlabs.clearagency.ai/our-solution/strainlabs-routers.md)): Strainlabs Routers collect data from smart bolts and send it to Analytics, enabling remote monitoring, alerts and full visibility. - [Strainlabs system](https://strainlabs.clearagency.ai/our-solution/strainlabs-system) ([Markdown](https://strainlabs.clearagency.ai/our-solution/strainlabs-system.md)): Explore the complete Strainlabs IoT system for remote preload monitoring, combining smart bolts, routers, analytics and alerts. **Main pages** - [Smart Bolts with Built-in Sensors](https://strainlabs.clearagency.ai/) ([Markdown](https://strainlabs.clearagency.ai/home.md)): Strainlabs smart bolts measure preload every 10 minutes and alert you months before failure. Continuous bolt monitoring for industrial operations. - [About us](https://strainlabs.clearagency.ai/about) ([Markdown](https://strainlabs.clearagency.ai/about.md)): Strainlabs offers smart bolts with built-in sensors, paired with a system that enables real-time monitoring and alerts, to prevent unexpected production stops - [Contact](https://strainlabs.clearagency.ai/contact) ([Markdown](https://strainlabs.clearagency.ai/contact.md)): Let's talk! - [Customer cases](https://strainlabs.clearagency.ai/customer-cases) ([Markdown](https://strainlabs.clearagency.ai/customer-cases.md)): Our success stories - [Downloads](https://strainlabs.clearagency.ai/downloads) ([Markdown](https://strainlabs.clearagency.ai/downloads.md)): Learn more - [Industries](https://strainlabs.clearagency.ai/industries) ([Markdown](https://strainlabs.clearagency.ai/industries.md)): Industries - [Maintenance Glossary](https://strainlabs.clearagency.ai/maintenance-glossary) ([Markdown](https://strainlabs.clearagency.ai/maintenance-glossary.md)): All Key Terms in Maintenance & Reliability Explained - [Part of Service Offering](https://strainlabs.clearagency.ai/part-of-service-offering) ([Markdown](https://strainlabs.clearagency.ai/part-of-service-offering.md)): Application and industries - [Partners](https://strainlabs.clearagency.ai/partners) ([Markdown](https://strainlabs.clearagency.ai/partners.md)): Local expertise. Global reach. - [Preload monitoring by Strainlabs](https://strainlabs.clearagency.ai/preload-monitoring) ([Markdown](https://strainlabs.clearagency.ai/preload-monitoring.md)): Learn how preload monitoring helps industrial teams detect loose bolts, reduce manual inspections and prevent costly downtime. - [Privacy policy](https://strainlabs.clearagency.ai/privacy-policy) ([Markdown](https://strainlabs.clearagency.ai/privacy-policy.md)): Last updated: 2021-08-25 - [Request a demo](https://strainlabs.clearagency.ai/request-a-demo) ([Markdown](https://strainlabs.clearagency.ai/request-a-demo.md)): Want to know more? Request a demo - [Sustainability](https://strainlabs.clearagency.ai/sustainability) ([Markdown](https://strainlabs.clearagency.ai/sustainability.md)): Preload monitoring ## How to cite Smart Bolts by Strainlabs. “Bolt Preload App”. Smart Bolts by Strainlabs, 2026-11-11. https://strainlabs.clearagency.ai/our-solution/strainlabs-app (accessed ). ## Company & contact - **Company:** Smart Bolts by Strainlabs - **Address:** Strainlabs head office, Stockholm: | Kungsgatan 64, 111 22 Stockholm - **General enquiries:** [contact@strainlabs.com](mailto:contact@strainlabs.com) - **Phone:** +46 (0) 46 286 4000 - **About:** Get to know us to learn more about Internet of Bolts, Preload Monitoring and how Strainlabs System can benefit your operations. **Other languages:** [Svenska](https://strainlabs.clearagency.ai/sv/losningar/strainlabs-app.md) --- [View on site](https://strainlabs.clearagency.ai/our-solution/strainlabs-app) · [Site index for agents (llms.txt)](https://strainlabs.clearagency.ai/llms.txt)