Screw counting machines
Machine screws, self-tappers and wood screws assessed for head presentation, shingling and length variation.
Screws, nuts, bolts and fixings
Screw & fastener counting machines.
Automatic systems separate loose fixings, detect each accepted part and release a preset quantity into bags, boxes, kits or assembly processes.
- Representative-part trials
- Defined batch acceptance
- UK project support
Direct answer
What is a fastener counting machine?
A fastener counting machine automatically feeds loose screws, nuts, bolts, washers or other fixings, creates one validated count event per part and discharges the preset batch to its next container or process.
The machine is specified around the real component family, quantity, sustained output and hand-off—not around a generic pieces-per-minute claim.
High-intent applications
Count the complete fixing family.
Different fixing geometries create different feeding risks. Each intended production variant is included in the assessment.
Nut and bolt counters
Robust feed paths for hexagonal, flanged or specialist formats, with positive separation before detection.
Washer counting machines
Thin parts require controls for sticking, double layers and closely spaced sensor events.
Rivets, pins and clips
Long, lightweight or spring-like components are assessed for bridging, interlocking and tangling.
Fixings into bags
Preset batches can handshake with bag presentation, printing, sealing and incomplete-pack handling.
Hardware kit counting
Several feeders can contribute verified quantities to a furniture, service or assembly kit recipe.
Selection inputs
Send the details that change the answer.
- Every screw, nut, bolt, washer or fixing variant
- Dimensions, mass, material, coating and surface sensitivity
- Target quantity and acceptable count criteria
- Required completed batches per minute or hour
- Bag, box, kit tray or assembly interface
- Changeover, data, labelling and traceability needs
Engineering comparison
Match the feeding route to the risk.
| Component behaviour | Likely starting route | What must be proven |
|---|---|---|
| Repeat screws with stable geometry | Vibratory bowl and optical sensor | Head-to-tail separation, pitch and stop control |
| Long bolts or pins | Step feeder or lift-and-track route | Bridging, tangling and controlled transfer |
| Thin washers | Dedicated tooling and optical detection | Double layers, sticking and sensor resolution |
| Mixed kit recipe | Multiple dedicated channels | Cross-contamination and recipe reconciliation |
Frequently asked questions
Direct answers for your specification.
Final suitability and performance depend on representative components, operating conditions and agreed acceptance criteria.
Ask about your component →What fasteners can an automatic counting machine handle?
Typical applications include screws, nuts, bolts, washers, rivets, pins, clips, wall plugs and inserts. Suitability depends on size range, geometry, surface finish and whether parts nest, bridge or tangle.
How are screws separated before counting?
A metered hopper feeds a bowl, step feeder or linear track that removes overlaps and presents a controlled stream to the sensor. Tooling and recirculation are developed around representative screws.
Can one machine count several screw sizes?
Compatible sizes may run with recipes, adjustable guides or change tooling. The complete format range should be trialled because head style, length and finish can change feeding and sensing behaviour.
Can counted fasteners discharge straight into bags?
Yes. A completed quantity can release to a pre-opened bagger, an operator-held bag, a carton, kit tray or assembly station with ready and complete signals.
How is fastener count accuracy confirmed?
Accuracy is established through representative component trials and an agreed factory acceptance test covering target quantities, sustained output, refilling, stops, jams, recovery and container changes.
Start with the component
Send a photograph, target quantity and required output.
We will identify the most credible feeding and counting route, then define the evidence needed for the next decision.