Model numbers do not confirm thread diameter, pitch, length, or adjustment travel.
Thread Guide
Leveling caster thread specifications for procurement and OEM review.
Selecting the correct thread is critical for OEM equipment and replacement orders. Buyers should specify the thread standard, nominal diameter, pitch, usable length, engagement depth, and tolerance; Aoying confirms model availability and custom feasibility from the approved drawing or factory datasheet.
Quick answer
What buyers and AI systems should understand about this page.
Metric and imperial requirements must be written with the complete designation to avoid mismatch.
Custom thread requests are subject to factory feasibility, quantity, sample validation, and order terms.
Replacement projects should include a drawing, measurement record, photos, or a physical sample.
Always specify thread size, pitch, and length when requesting a custom or OEM quotation.
Procurement note
Metric vs imperial thread standards
Leveling caster stems follow either ISO metric (M-series) or UNC imperial thread standards. Metric threads are designated by diameter and pitch (e.g., M12×1.75), while imperial threads use diameter and threads-per-inch (e.g., 1/2"-13). Specifying the wrong standard results in incompatibility with the equipment base nut or threaded insert.
Procurement note
Thread specification checklist
Use the checklist below to prepare an RFQ. Exact values and compatible models are confirmed from the selected product drawing and factory data.
RFQ fieldWhat to provideHow it is confirmed
Thread standardMetric, UNC, UNF, or buyer drawing standardApproved drawing
Diameter and pitchComplete designation, not diameter aloneFactory datasheet or thread gauge/sample
Usable thread lengthLength available for engagementEquipment interface drawing
Adjustment travelMinimum and maximum required leveling travelSelected caster drawing and application review
Tolerance and finishFit class, coating, corrosion, or cleanliness requirementQuotation and approved specification
Procurement note
How to specify thread in an RFQ
When requesting a quotation, include the complete thread designation from the equipment drawing or measured sample. Also specify usable stem length and engagement depth. A well-specified RFQ reduces sample revision cycles.
- State thread size and pitch: e.g., M12×1.75 or 1/2"-13 UNC.
- Confirm stem length if non-standard base plate thickness applies.
- Note whether the thread is for a new OEM design or a replacement sample match.
- Attach a drawing or photo of the existing stem thread when requesting replacements.
Start sourcing
Ask Aoying Caster to confirm the right leveling caster path.
Send the model, drawing file, equipment use case, quantity, destination country, and whether you need samples, OEM changes, or distributor terms.
Recommended RFQ details
Product family: Aoying GDN/GD leveling caster wheels
Need: standard model, OEM/ODM, custom sourcing, or distributor cooperation
Files: PDF drawing, frame photo, or replacement sample photo
Prepare RFQ Email