FastenersFromTurkey supplies custom screws made to drawing in Turkey for OEM and industrial RFQs. The approved drawing or specification governs screw function, head, drive, thread, material, tolerances and coating; samples, PPAP, tooling, documentation and volume are confirmed for each order.
Made-to-drawing custom screws supplied through verified Turkish manufacturers
Confirm these order-specific inputs before quotation.
| Field | Order input | Confirmation |
|---|---|---|
| Product scope | Made-to-drawing custom screw for the stated function and application | Part type and application confirmed per RFQ |
| Standard/drawing | Controlled drawing, revision and purchase specification govern acceptance | Governing documents confirmed per RFQ |
| Dimensions/thread | Head, drive, point, thread, tolerance classes and critical dimensions | Dimensional inputs confirmed per RFQ |
| Material/mechanical | Specified material and required mechanical or functional values | Order requirement confirmed before quotation |
| Finish/coating | Specified finish, coating, corrosion and friction requirements | Finish scope confirmed per RFQ |
| Documentation | Required certificate, inspection, sample, PPAP or TPI scope | Availability and deliverables confirmed per order |
| Commercial | Quantity or annual volume, MOQ drivers, tooling, packing, Incoterm and destination | Commercial basis confirmed in the quotation |
| Supplier role | FastenersFromTurkey supplies custom screws made to drawing from Turkey. | Order-specific supply scope confirmed from the RFQ |
Values remain order-specific until confirmed in the quotation.
An approved drawing and revision are the basis of a quotable custom screw requirement. Start with the drawing and specification basis, then confirm the configuration and thread system, the production method and the tooling, sample and PPAP plan that let the RFQ be quoted on one basis.
The drawing establishes the geometry, critical-to-function dimensions, datums, tolerances, thread, material, finish and acceptance criteria. The purchase specification adds application, inspection, documentation, packaging and commercial requirements. Changes after quotation should follow revision control so tooling, samples, inspection records and serial orders remain tied to one approved requirement.
Review drawing and specification inputs
Custom screw categories help classify the RFQ; they are not blanket statements of availability. State the head profile, drive system, recess depth, point or end form, shank or shoulder geometry and installation tool. Drive performance depends on recess geometry, hardness, coating and tightening conditions; a drive name alone is not enough for acceptance.
Compare custom screw configurations
Process selection affects tooling, unit economics, material flow, tolerances and the approval plan. Cold heading can support repeat production of formable geometry, machining can suit prototypes and tight local features, and some screws start as a formed blank that then receives thread rolling, machining, heat treatment or coating. Final feasibility is confirmed through order-specific drawing review.
Compare production methods
Dedicated heading, recess, trimming, rolling or checking tools may be required. Tooling ownership, maintenance, expected life, change control and non-recurring engineering costs are confirmed only after the process route and annual volume are reviewed, together with the prototype, first-article and PPAP sequence.
Review tooling and PPAP requirementsAn approved drawing and revision are the basis of a quotable custom screw requirement. They establish the geometry, critical-to-function dimensions, datums, tolerances, thread, material, finish and acceptance criteria. The purchase specification adds application, inspection, documentation, packaging and commercial requirements.
Identify the drawing number, revision, units and governing specification. Mark head diameter and height, drive or recess, overall and under-head length, shank or shoulder, point or end form, thread length and any controlled runout. If the part mates with a tapped hole, insert, washer or assembly, include that interface information and the installation method. Changes after quotation should follow revision control so tooling, samples, inspection records and serial orders remain tied to one approved requirement.
A standard blank or catalogue screw can sometimes be machined, drilled, slotted, coated or otherwise modified. This may reduce tooling exposure for lower volumes, but only when the base part's material, mechanical properties, geometry and traceability remain compatible. Order-specific review confirms whether modification, dedicated tooling or full made-to-print production is suitable.
The categories below help classify the RFQ; they are not blanket statements of availability. Final capability depends on the drawing, material, process, tolerances, secondary operations and order volume.
| Configuration | Critical inputs | Drawing evidence needed |
|---|---|---|
| Machine or precision screw | Head, drive, thread, local tolerances | Controlled dimensions, thread class and mating interface |
| Shoulder screw | Shoulder diameter and length, concentricity | Datum structure, bearing surface and fit |
| Set screw | Drive, point form, hardness and function | Point geometry, mating surface and tightening method |
| Captive or SEMS screw | Retention feature and assembled components | Assembly stack, washer or retention geometry |
| Special-function screw | Non-standard head, point, recess or shank | Functional characteristics and acceptance method |
Feature-level decisions determine which production method can hold the drawing. Define each feature against a functional requirement rather than a visual reference.
Custom machine screws may require a non-standard head, recess, thread length, point or feature-specific local tolerance.
For custom shoulder screws, define shoulder diameter and length, concentricity, transition radii, bearing surface, thread and mating fit.
Custom set screws need a defined point form and hardness route. Captive, SEMS and other special-function configurations need their retention, sealing, locking or pre-assembled interface defined.
State the head profile, drive system, recess depth, point or end form, shank or shoulder geometry and installation tool. Drive performance depends on recess geometry, hardness, coating and tightening conditions; a drive name alone is not enough for acceptance.
Process selection affects tooling, unit economics, material flow, tolerances and the approval plan. Final feasibility is confirmed through order-specific drawing review.
| Route | Strongest fit | Main review questions |
|---|---|---|
| Cold heading | Formable geometry and repeat volume | Material formability, tooling, reduction ratios and secondary operations |
| CNC machining | Prototype quantities, complex features or tight local tolerances | Material stock, cycle time, burr control and inspection method |
| Formed blank plus secondary work | Repeat volume with machined, rolled or finished features | Operation sequence, datum transfer and traceability |
Order-specific feasibility review considers the complete route and its change-control points, not only the first forming operation.
Cold heading can support repeat production, but head shape, recess, material flow, deformation limits, tooling and non-recurring engineering must be reviewed.
Machining can suit prototypes, low volumes, unusual features or tight local tolerances that are difficult to form.
Some custom screws start as a formed blank and then receive thread rolling, machining, heat treatment, coating or another secondary operation. The sequence must preserve critical datums.
State the complete thread designation and purchased specification, then mark the characteristics that will be measured. Apply only the standard and edition required by the drawing.
Specify the thread system, nominal size, pitch or threads per inch, class of fit, handedness, thread length, start and runout. ISO metric threads and Unified inch threads are separate systems and are not interchangeable. ISO 68-1, ISO 261/262 and the current ISO 965 parts may govern metric profiles and tolerances; ASME B1.1 covers Unified inch thread form, series, class, allowance, tolerance and designation. Apply only the standard and edition required by the drawing.
Overall length, under-head length, head dimensions, recess, point, shank or shoulder, thread length and runout should be defined with feature-specific tolerances. A broad title-block tolerance should not replace controlled limits for fit, location, concentricity or functional surfaces.
Provide the mating thread, engagement, joint stack, driver, installation method and functional acceptance criteria. Coating thickness can affect fit; recess geometry and finish can affect drive performance. These relationships should be reviewed together.
Material identity and mechanical requirements are separate. Specify hardness, tensile or proof requirements, heat treatment and test method only where the drawing or purchase specification requires them.
State the exact material designation or an approved specification. Carbon, boron or alloy steel, A2/A4 stainless and non-ferrous materials such as brass may be considered only when order-specific production capability is confirmed. A keyword such as "custom brass screws" is not a material authorization.
Material identity and mechanical requirements are separate. ISO 898-1 applies only within its scope to carbon- and alloy-steel bolts, screws and studs with specified property classes and metric threads; it does not automatically cover every screw geometry or function. Set screws and stainless screws require the relevant product and material standards to be checked separately. Specify hardness, tensile or proof requirements, heat treatment and test method only where the drawing or purchase specification requires them.
A substitution can change strength, hardness, formability, corrosion response, magnetic behavior, coating compatibility and installation performance. No material, grade, heat-treatment or finish substitution should enter production without customer engineering approval and updated documentation.
Define the coating system, finish or color, local thickness limits, white- and red-corrosion criteria, test method and required hours where applicable. A test duration is not a service-life guarantee.
Define the coating system, finish or color, local thickness limits, white- and red-corrosion criteria, test method and required hours where applicable. ISO 4042 or ASTM F1941 may be referenced for electroplated coatings; ISO 10683 or ASTM F1136 may apply to zinc-flake systems; ISO 9227 or ASTM B117 may govern salt-spray test procedures. A test duration is not a service-life guarantee.
Coating and lubricant can alter friction, drive behavior and clamp response. Electroplating of high-hardness parts also requires a process-specific hydrogen-embrittlement risk review. Hardness, cleaning, plating, relief treatment, test evidence and application risk must be considered before a finish is approved.
If the screw needs a locking patch, sealant, microencapsulation or prevailing-torque feature, define application location, coverage, activation, storage, installation and acceptance requirements. Compatibility with the coating, mating material and service environment should be confirmed.
Dedicated heading, recess, trimming, rolling or checking tools may be required. Tooling ownership, maintenance, expected life, change control and non-recurring engineering costs are confirmed only after the process route and annual volume are reviewed.
Dedicated heading, recess, trimming, rolling or checking tools may be required. Tooling ownership, maintenance, expected life, change control and non-recurring engineering costs are confirmed only after the process route and annual volume are reviewed.
Prototype or machined samples can support geometry and fit checks before serial tooling. First-article samples should be tied to the controlled drawing, inspection plan and deviation status. Sample quantity and timing depend on the selected route.
PPAP may be coordinated when requested and supported by the order-specific production capability. The RFQ should name the required PPAP level, control-plan expectations, material declarations, capability evidence and approval sequence.
MOQ, tooling economics, sample route and lead time depend on geometry, process, material, finish, order quantity and annual demand. Provide both first-order quantity and forecast annual volume so the quotation can compare realistic routes.
FastenersFromTurkey reviews each RFQ using geometry, material, forming or machining process, tolerance, secondary operations, tooling, documentation, quantity and export needs before confirming order-specific supply scope.
FastenersFromTurkey reviews each RFQ using geometry, material, forming or machining process, tolerance, secondary operations, tooling, documentation, quantity and export needs. Manufacturing capability and supply scope are confirmed for the specific drawing before quotation.
Manufacturer evidence is checked for holder, scope and validity against the RFQ; it is not presented as FastenersFromTurkey-owned.
Share only the controlled files needed for feasibility and quotation, with confidentiality and distribution restrictions identified before release.
The inspection plan should identify critical characteristics, sample frequency, measurement method and acceptance criteria. Each evidence area needs both a defined requirement and an agreed control point.
| Evidence area | Possible requirement | Control point |
|---|---|---|
| Dimensional, thread, recess and visual | Dimensional reports, thread gauges, recess or drive checks and visual inspection | Apply only when specified and confirmed in the inspection plan |
| Mechanical and coating | Hardness, proof or tensile testing, coating thickness and corrosion testing | Apply only when the order specification requires them |
| Functional | Locking performance and installation checks | Tie acceptance to the functional characteristic that performs the work |
| Test procedure basis | ASTM F606/F606M procedures for mechanical testing of threaded fasteners | Product requirements remain controlled by the product standard or customer specification |
| Lot traceability | Heat or material traceability, manufacturing lot, inspection status and packing labels | Keep certificates, labels and document retention aligned |
| Material documentation | EN 10204 3.1 or 3.2 documentation | Request only with the applicable certificate route, issuer and scope identified |
Evidence requirements are agreed before production so the inspection plan, report format and acceptance authority are not negotiated after the parts are made.
The inspection plan should identify critical characteristics, sample frequency, measurement method and acceptance criteria. Define heat or material traceability, manufacturing lot, inspection status, packing labels and document retention. EN 10204 3.1 or 3.2 documentation should be requested only with the applicable certificate route, issuer and scope clearly identified.
Custom screws can support automotive, machinery and industrial assemblies as well as electrical, appliance and precision equipment. The sector label does not approve the part.
Disclose joint function, mating material, installation method, clamp or drive requirement, vibration, corrosion, temperature and safety criticality. Automotive or machine assemblies may also require PPAP, lot traceability and customer-specific approval.
Electrical contact, insulation, appearance, clean assembly, recess access and compact geometry can be more important than nominal size. Define those functions in measurable acceptance terms.
Do not use generic torque, fitment or reuse values for a drawing-defined screw. Safety-critical changes to material, geometry, coating, thread or process require customer engineering approval.
The quotation process starts with drawing and specification review, followed by order-specific process feasibility, tooling and sample planning, documentation scope and commercial terms.
The quotation process starts with drawing and specification review, followed by order-specific process feasibility, tooling and sample planning, documentation scope and commercial terms. Open questions and approved deviations should be closed before serial order acceptance.
State pieces per pack, inner and outer packaging, pallet limits, corrosion protection, barcode or label format, lot separation and required origin or shipping documents. Packaging should protect the drive, threads and finish through export handling.
EXW, FOB Turkish port (Istanbul, Izmir/Aliaga, Mersin, Gemlik, Iskenderun or Derince), CFR and CIF can be reviewed for the RFQ. The applicable port, freight route, delivery target and responsibility split are confirmed in the quotation.
A complete custom screw RFQ should include:
| RFQ field | Required input |
|---|---|
| Drawing control | Drawing number, revision, units and governing specification |
| Application | Joint function, mating component, installation and risk level |
| Geometry | Head, drive, point, shank or shoulder, lengths and tolerances |
| Thread | Metric/UNC/UNF designation, pitch/TPI, class, length and runout |
| Material | Exact designation, mechanical class, hardness and heat treatment |
| Finish | Coating, thickness, color, friction, corrosion and locking/sealing requirements |
| Quality | Inspection plan, tests, certificates, first article or PPAP |
| Commercial | Order quantity, annual volume, packaging, destination, Incoterm and target date |
A custom screw RFQ can be reviewed from an approved drawing and revision. The review should include geometry, dimensions, tolerances, thread, material, mechanical requirements, coating, inspection documents, quantity and annual volume before manufacturing feasibility is confirmed.
FastenersFromTurkey reviews the required process, geometry, material, tolerance, tooling, secondary operations, quality documents, volume and export requirements. Final manufacturing capability, supply scope and feasibility are confirmed for the specific drawing.
Cold heading can suit repeat-volume and formable geometries, while CNC machining can suit prototypes, complex features or tighter local tolerances. Some screws require a formed blank followed by thread rolling, machining or another secondary operation. The drawing, material and annual volume determine the appropriate route.
Tooling is often required for cold-headed custom screws, while some machined or modified-standard parts may use existing tooling. Tooling and non-recurring engineering costs are confirmed after order-specific review of the drawing, process and expected volume.
Prototype, first-article and PPAP stages may be coordinated when required by the order. The available scope, PPAP level, sample quantity, tooling status, inspection plan and approval sequence must be confirmed before quotation.
There is no single product standard for every custom screw. The customer drawing and purchase specification govern. Thread, mechanical-property, material, tolerance, coating and test standards should be listed separately and verified for their actual scope.
Provide the drawing and revision, application, head and drive, dimensions and tolerances, thread system, material and mechanical grade, coating and corrosion target, inspection and documentation requirements, sample or PPAP needs, order quantity, annual volume, packaging, destination and preferred Incoterm.
FastenersFromTurkey supplies custom screws made to drawing in Turkey. Send the controlled drawing and revision, function, head, drive and point, dimensions, thread and tolerances, material and mechanical requirements, coating, inspection and document requirements, tooling status, sample or PPAP scope, first-order quantity, annual volume, packing, Incoterm and destination.
Email: sales@fastenersfromturkey.com
Phone: +90 543 928 19 76
Send the controlled drawing, purchase specification, quantity, annual volume and destination so order-specific feasibility and supply scope can be confirmed. Include the target date and preferred Incoterm so technical and commercial feasibility can be assessed together.
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