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Prototype review
Machined or mixed-process route assessed for low quantity and design confirmation.
Custom Bolts & ScrewsProduct reference. Drawing revision, dimensions, material, process, inspection and packing follow the confirmed order.
Drawing-based threaded fasteners
Custom Bolts & Screws
Custom bolts and screws sourced against a released drawing or complete specification covering head and drive, under-head geometry, shoulder, thread, length, material, heat treatment, finish, inspection and packing.
- Buyer-authorized drawing number, revision, units and quantity
- Head, drive, under-head, shoulder, point and length definitions
- Thread standard, size, pitch, fit, runout and gaging requirement
- Material, property requirement, heat treatment and finish
- Critical dimensions, inspection level, sample approval and packing
A product page is an RFQ starting point, not a blanket capability or compliance claim. Final feasibility, process route, tolerances, testing, lead time and supply scope are stated only in the written quotation.
Quotation control
Information used to review the drawing RFQ
The released file, revision, units, tolerance scheme, material, process, quantity, inspection and destination are aligned before supplier routing.
| Field | Review basis | Order control |
|---|---|---|
| Part / file basis | Released bolt or screw drawing, part number, revision, units and order quantity | Confirmed per RFQ |
| Geometry / tolerances | Head/drive, under-head features, shoulder, point, thread, length, radii and stated tolerances | Confirmed per RFQ |
| Material / condition | Exact material specification, grade or condition plus required mechanical properties | Confirmed per RFQ |
| Process / finish | Required or prohibited forming, machining, thread production, heat treatment and surface finish | Confirmed per RFQ |
| Inspection / approval | Critical characteristics, thread gages, dimensional report, sample/FAI and documents as ordered | Confirmed per RFQ |
| Packing / commercial | Prototype or production quantity, packaging, labels, Incoterm and destination | Confirmed per RFQ |
Drawing-based sourcing
Custom geometry must be controlled feature by feature
A non-standard fastener cannot be quoted reliably from a photo or product name alone. Head and drive details, length datum, shoulder, thread start and runout, point, radii, tolerances and surface requirements must be read from the released order basis.
The practical route may combine forming, machining, thread rolling or cutting and secondary operations. XHT coordinates source review but does not select a substitute process, material or tolerance without buyer approval.
What to include in your RFQ
- Buyer-authorized drawing number, revision, units and quantity
- Head, drive, under-head, shoulder, point and length definitions
- Thread standard, size, pitch, fit, runout and gaging requirement
- Material, property requirement, heat treatment and finish
- Critical dimensions, inspection level, sample approval and packing
Controlled RFQ fields
Items that define a comparable quotation
Common enquiry fields for drawing-based bolts and screws. The released drawing and purchase order govern the final supply.
| Selection | Buyer input | Control |
|---|---|---|
| File control | Part number, drawing revision, units, scale and general tolerance | Confirmed per RFQ |
| Head / drive | Profile, recess or wrench feature, under-head radius and bearing surface | Confirmed per RFQ |
| Body / thread | Diameter, shoulder, thread standard/pitch/fit, runout and point | Confirmed per RFQ |
| Material / properties | Material specification, grade, heat treatment, hardness or mechanical requirement | Confirmed per RFQ |
| Finish / marking | Surface treatment, coating limits, permitted marking and hydrogen-risk controls when applicable | Confirmed per RFQ |
| Inspection / packing | Critical dimensions, gages, sample report, lot control and packaging | Confirmed per RFQ |
Missing information: XHT may raise clarification points or propose a documented alternative for review. No changed material, dimension, tolerance, process or finish becomes the order basis without buyer approval.
Technical & file control
Do not infer a dimension from a similar standard fastener
A standard-looking head does not establish the drawing basis. Every changed shoulder, thread end, length datum, recess, radius, tolerance and material property remains controlled by the released file and approved clarification record.
Before sharing files: Send only technical files you are authorized to transmit. If an NDA, access restriction or special transfer method is required, agree the route with XHT before uploading the file.
Typical sourcing routes
The route follows geometry, process and quantity
Examples guide the RFQ only. Supplier selection and process feasibility remain subject to the released requirement and written quotation.
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Production fasteners
Forming and secondary operations reviewed when volume and geometry support them.
03
Replacement parts
Original drawing, approved sample and mating information used to prevent mismatch.
04
Project packages
Revision, inspection, labeling and export packing coordinated across part numbers.
Order coordination
A controlled route from file review to shipment
Sampling, inspection, traceability and packing are supplied only when agreed in the quotation and purchase order.
01
File intake
Part number, revision, units and critical notes are identified.
02
Feasibility routing
Potential sources and process routes are reviewed against the RFQ.
03
Sample & inspection
Approval sample and inspection scope follow the agreed order plan.
04
Lot & packing follow-up
Revision, quantity, labels, lot separation and export packing are coordinated.
Related products
Build a coordinated custom-parts package
Custom Studs & Threaded Parts
Non-standard thread lengths, ends, materials and markings from controlled drawings.
CNC Machined Parts
Precision turned or milled metal parts for tighter geometry and tolerance needs.
Fastener Assemblies & Kits
Grouped fasteners and custom components packed to your BOM or installation sequence.
Drawing RFQ
Request a review for Custom Bolts & Screws
Send a buyer-authorized PDF drawing, BOM or clear specification through the RFQ form. If a native model or controlled file is required, request an agreed transfer route first.