Customized fasteners
Drawing-based metal parts, precision requirements and material options.
DRAWING-BASED INQUIRIES
Your drawing. An agreed specification.
Customized fasteners are defined by the drawing and application rather than a catalog name alone. SPM reviews special heads, shoulders, threads, washer dimensions and other metal-part geometries against the dimensions and performance requirements you specify.
SPM supplies standard fasteners and offers precision machining for custom parts. Manufacturing scope, material availability and commercial terms are confirmed for each quotation.
Send the drawing number and revision, quantity and destination. Drawings can be discussed by email after your initial inquiry.
What to confirm for your quotation
- 01 · Define the part
- Drawing revision, dimensions, threads, critical tolerances and mating requirements.
- 02 · Define the order
- Material grade, finish, quantity, sample request and destination.
- 03 · Agree the scope
- Feasibility, inspection criteria, MOQ, price, lead time and packing are confirmed per order.
Drawing, materials & ordering
Precision starts with the drawing
Identify critical tolerances, mating features, surface finish and any inspection method that affects acceptance. Include the drawing number and revision so the quotation and order refer to the same part.
Material options
| Material family | Information to include |
|---|---|
| Carbon / alloy steel | Exact grade, property class or hardness, heat-treatment and finish requirements. |
| Stainless steel | Grade, service environment, thread and surface-treatment requirements. |
| Titanium / nickel alloys | Exact alloy grade, drawing, critical tolerances and required inspection documents. |
| Aluminum | Exact grade, dimensions, finish and application requirements. |
Available grade, manufacturing route and finish are agreed for the quoted part. A product photo does not identify its material composition.
International and customer specifications
We accept inquiries referencing DIN / ISO, ASME, ASTM, API, SAE and JIS requirements. Include the exact standard, edition, supplementary requirements and required documents. Referencing a standard family does not imply certification or conformity for an unspecified product.
Quotation checklist
| Requirement | Information to provide |
|---|---|
| Geometry | Dimensioned drawing, thread details and critical tolerances. |
| Material | Exact grade, required properties and surface treatment. |
| Quantity | Order quantity, sample requirements and repeat-order expectations. |
| Inspection | Acceptance criteria, inspection documents and traceability needs. |
| Delivery | Destination, packing requirements and requested timing. |
Common questions
Can I request titanium or nickel alloy fasteners?
Yes. Share the exact grade, drawing, quantity and operating conditions. Material availability and manufacturing scope are confirmed with the quotation.
Can you quote from a sample or photograph?
A photograph can help identify the product, but it does not fully define dimensions, tolerances or material. Provide a drawing or discuss how those requirements will be confirmed.
PACKING & DELIVERY
Packing to suit your part
Part geometry, finish and quantity determine the packing arrangement. Carton and pallet dimensions are reviewed for the quoted part.
- Packing quantity
- Pieces and net weight per pack: confirmed per order.
- Shipment details
- Packed gross weight, pack count and pallet dimensions: confirmed per order.
- Labels & protection
- Label content, protection and special packing: confirmed per order.
Include the destination country or port, requested delivery date and any handling or label requirements in your inquiry.
Request a quotation
Leave your contact details and select a product category. We can discuss specifications and drawings by email.
Contact
Seith Lee · +86 15821980914
A brief note is enough to get started.
Prepare your quotation request
Bolt, Nut & Washer RFQ Checklist — check specifications, quantities and packing before sending your RFQ.