/answers/how-to-inspect-screws-and-bolts-with-computer-vision/index.md · 42 lines
---
title: "How to inspect screws and bolts with computer vision"
description: "A camera over a feeder, a rotary table or a sorting chute takes photos of each part, often from more than one side. A model trained on the shop own images, labeled against its own specs, marks likely issues such as bent or short parts, damaged or missing threads, cracked or misformed heads, wrong drive recess, burrs, missing coating or plating and mixed parts that do not belong in the lot. Flagged parts go to a reject or recheck bin, and each flag keeps its photo so the quality lead can see why and trace a run of defects back to a machine or a tool change. It can also count parts into bags or boxes. The quality team checks samples with gauges each shift and decides what ships. The model does not replace gauge checks, strength tests or customer specs, which stay in place, and people make every quality and release call."
url: https://lidvizion.ai/answers/how-to-inspect-screws-and-bolts-with-computer-vision/
site: Lid Vizion
index: https://lidvizion.ai/llms.txt
---
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# How can a fastener maker or distributor use computer vision to check screws, bolts and nuts?
A camera over a feeder, a rotary table or a sorting chute takes photos of each part, often from more than one side. A model trained on the shop own images, labeled against its own specs, marks likely issues such as bent or short parts, damaged or missing threads, cracked or misformed heads, wrong drive recess, burrs, missing coating or plating and mixed parts that do not belong in the lot. Flagged parts go to a reject or recheck bin, and each flag keeps its photo so the quality lead can see why and trace a run of defects back to a machine or a tool change. It can also count parts into bags or boxes. The quality team checks samples with gauges each shift and decides what ships. The model does not replace gauge checks, strength tests or customer specs, which stay in place, and people make every quality and release call.
## What this means in practice
- Start with one part family on one sorting line.
- Label photos from your own parts against your own specs.
- Photograph each part from the sides that matter for your defects.
- Send flags to a recheck bin before using automatic rejects.
- Keep gauge checks and strength tests in place.
## How Lid Vizion approaches it
We start with the business decision and operating context, define ownership and measurable milestones, then use configuration, integrations, automation, or custom software only where each earns its place.
## More on Automation & custom AI
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