CHQ wire · cold heading quality wire
For fasteners and cold-headed components
We coordinate wire supply for cold heading and forming. Grade, annealing and coating requirements are reviewed together to define the material condition required by your production process.
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Product & application
Wire diameter is only part of a cold-heading specification. Surface quality and annealed condition also influence forming performance and tooling. We review the grade, spheroidizing requirements, coating and lubrication, and coil weight with the relevant supply maker.
- Supply forms
- Wire coils · straightening and cutting by arrangement
- Application examples
- Bolts, nuts, screws, rivets and automotive or industrial cold-headed parts
Define the supply conditions.
These are specification inputs for quotation review. Actual availability, minimum quantity and lead time are confirmed by grade and size.
- Condition & surface
- Annealing condition, tensile strength or hardness, coating and lubrication
- Dimensions & order
- Wire diameter/tolerance, coil dimensions and unit weight
- Inspection & documents
- Specify mill certificates, tests, traceability and customer approvals. Document availability, cost and timing are reviewed.
Representative grades & review scope
| Family | Representative grades / review basis |
|---|---|
| Heading carbon steel | SWCH series |
| Alloy steel | SCM415 · SCM420 · SCM435 · SCM440 |
| Other requested grades | Per drawing and applicable standard |
Grades and forms are inquiry examples. Inventory, availability, dimensions, quantity, inspections and lead time are confirmed at quotation.
JIS names are used as a reference. They do not automatically establish equivalence to other standards or certification. Agree the applicable standard, edition and product requirements before ordering.
Information for quotation & technical review
- Grade, wire diameter and tolerance
- Annealing, tensile strength or hardness
- Coating and lubrication
- Coil inside/outside diameter, weight and packing
- Known forming issues or customer approval requirements
If your drawing or specification is not complete, tell us the intended process and function. We can start by clarifying the information needed for review.