Combination screw washer-position RFQ inputs should show where the washer sits in the controlled assembly rather than assuming that a familiar product image defines the next stack. Record the current revision, visible washer position, mating interface, and approval owner.
Begin with the assembly view that shows the washer and the components it sits between. Identify the revision, visible order, installation side, and person who can approve a change. A generic combination-screw description does not establish the released washer position.
Record the assembly identifier, location reference, quantity range, and any obscured condition. That prevents each supplier from pricing a different assumed stack.
Keep the washer location, adjacent surfaces, and access note as separate RFQ fields. Give all respondents the same evidence register.
| RFQ field | What to send with quote | Review purpose |
|---|---|---|
| Assembly drawing | Current view and revision | Names the governing source |
| Washer position | Visible order and location reference | Makes the stack question explicit |
| Adjacent interface | Components on either side | Connects the record to the joint |
| Access note | Installation and inspection-side view | Keeps approach visible |
| Quantity scope | Quantity breaks and packaging | Aligns commercial replies |
| Acceptance owner | Named deviation reviewer | Separates quote from approval |
The register does not establish a washer material, dimension, torque, retention, or installation result.
A sample can show a washer near a head, but it cannot prove that the active drawing requires the same order. Label photos with source, date, view direction, and revision context. Keep informal measurements marked as observations.
If the mating side cannot be seen, describe the gap and name who must confirm it. This keeps a missing interface from becoming a quotation assumption.
Ask suppliers to cite the revision, restate the washer position they understood, and record alternatives in a separate field. Keep commercial assumptions beside the technical response. The combination screw stack-up verification guide covers a broader stack review, while this article isolates washer position.
| Response item | Supplier response requested | Buyer action |
|---|---|---|
| Source used | Revision and referenced view | Stop if sources differ |
| Washer reading | Position and adjacent interfaces understood | Check against record |
| Open point | Hidden or unclear stack detail | Escalate to owner |
| Alternative | Changed feature and basis | Keep separate |
| Commercial scope | Quantity, packaging, timing | Compare aligned replies |
Store clarifications with the controlled revision. A quotation comparison is not an engineering release.
This article does not establish torque, retention, load, vibration behavior, material, corrosion, certification, compliance, or suitability for a particular joint. Final release needs product-specific evidence and an owner-selected validation plan.
Important: Pause the RFQ if the revision, washer position, mating interface, or approval owner is missing. A product image cannot close an unverified stack relationship. ASME Y14.5 reference
Use the TNHO two-in-one combination screw page to begin a category discussion after the evidence record is complete. The route does not promise a specific stack, fit, performance, certification, or delivery.
For an inquiry, send the controlled washer-position record through contact, including revision, stack view, access note, quantity range, and unresolved items.
Include assembly revision, washer position, adjacent interfaces, access view, quantity range, and acceptance owner.
No. A photo records an observation; the controlled assembly view defines the released requirement.
Record washer order, head-side view, mating side, access direction, hidden conditions, and open questions.
Require the changed feature and its basis in a separate row, then route it to the named technical owner.
No. It does not establish retention, torque, load, material behavior, compatibility, or compliance.
Use the TNHO two-in-one route for navigation, then provide the controlled washer-position record through contact.
TNHO 
