| Product application | Confirm that the padlock is designed for energy-isolation and lockout/tagout use, and is compatible with the equipment and lockout devices in your facility. | Which applications and lockout devices is this model intended for? Can you provide dimensional drawings? | Product datasheet, drawings, and a sample for fit testing. |
| Body and shackle materials | Compare body and shackle materials against the site’s electrical, corrosion, temperature, and environmental requirements. Nonconductive body materials and metal shackles serve different purposes. | What are the body and shackle materials? Are material options available for corrosive or outdoor environments? | Material specifications and, where relevant, test reports for the stated environment or performance. |
| Shackle dimensions | Check shackle diameter, usable clearance, and overall dimensions against valve, breaker, and hasp openings. Do not rely on appearance alone. | What are the shackle diameter and usable height? Are alternate shackle lengths available? | Dimensioned drawings and samples measured against your intended lockout points. |
| Keying and key control | Choose a keying arrangement that supports your site’s lockout procedure, such as individually keyed locks or an approved group-key system. | How are key codes assigned and controlled? Can you document the keying arrangement and manage replacement orders? | Written keying plan, sample keys, and documented procedures for key-code control. |
| Identification and customization | Assess whether labels, color options, engraving, or other identification methods meet your maintenance and employee-identification needs. | Which identification options are available, and how are they checked for legibility and durability? | Marking samples, artwork proof, and details of any durability testing performed. |
| Quality management | Review the supplier’s quality controls, inspection process, traceability, and handling of nonconforming products. | How are incoming materials and finished padlocks inspected? Can production batches be traced? | Quality procedures, sample inspection records, and any applicable quality-management certificate with its current scope and validity verified. |
| Testing and compliance | Match product testing and documentation to the regulations, standards, and internal safety requirements applicable in your destination market. | Which requirements does the product claim to meet, and what test methods and results support each claim? | Relevant test reports and certificates; verify issuer, model coverage, scope, and validity independently. |
| Production capacity and lead time | Confirm that the supplier can meet the required order volume, packaging needs, and repeat-order schedule. | What are the sample, production, and repeat-order lead times? How are delays communicated? | Written quotation, production schedule, and confirmation of the order’s specifications and delivery terms. |
| Packaging and shipment | Check packaging protection, carton labeling, export documentation, and suitability for the shipping route and storage conditions. | How are products packed and labeled? Which shipping and export documents can be provided? | Packaging specification, carton-marking sample, and a list of documents for the proposed shipment. |
| Samples and supplier verification | Evaluate product consistency and communication before placing a bulk order. Verify the supplier’s legal identity and manufacturing or sourcing role. | Can you provide pre-production samples and identify which facility will make or supply the product? | Samples, company registration details, facility information, and a written specification sheet for the quoted model. |
| Warranty and after-sales support | Clarify coverage, exclusions, defect reporting, replacement arrangements, and support for repeat orders. | What is the warranty period and claims process? How are product issues investigated and resolved? | Written warranty terms, claims procedure, and named service contact or support channel. |