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Quality control

Inspection Discipline for Dependable Automotive Fasteners

Dimensional inspection, thread fit, hardness, coating, material verification, batch traceability and export packaging control for standard and custom orders.

QC focus

Dimensional CheckThread InspectionHardness / Grade ReviewCoating ControlBatch Traceability
Dimensional Check

Diameter, length, head size, thread pitch, washer fit and drawing tolerances.

Mechanical Properties

Strength grade, hardness, torque-related requirements and application risk review.

Surface Finish

Coating type, color, corrosion resistance expectations and appearance inspection.

Traceability

Batch control, packaging label, shipment record and repeat order reference.

Material Confirmation

Carbon steel, alloy steel, stainless, brass, titanium and aluminum options.

Thread Inspection

Go/no-go thread control and fit checks for repeated assembly.

Coating Control

Zinc plated, black oxide, nickel, chrome, Dacromet, Geomet and anodized finishes.

Export Packaging

Bulk cartons, bags, labels and buyer-specific packing requirements.

Quality process

Controlled from material to shipment record.

01Material Confirmation
02First Article Check
03In-process Inspection
04Final Inspection
05Packing & Labeling
06Shipment Record

Automotive quality system

Quality language familiar to automotive buyers.

Automotive Quality Core Tools

APQP, PPAP, FMEA, MSA, SPC and Control Plan support can be reviewed by project requirement.

Inspection Capability

Thread gauges, caliper, micrometer, hardness review, coating thickness and salt spray requirement can be discussed before order.

Document Delivery

Inspection report, material certificate, coating report, packing label record and traceability record are available upon request.

Traceability Example

Raw material lot, heat treatment batch, coating batch, final inspection record, packing label and shipment record.

Sample Document Review

Sample documents can be reviewed before order approval.

Sample files hide sensitive customer data. Final document scope depends on buyer drawing, material, process and order requirement.

Dimension Inspection Report

Sample layout for critical dimensions, thread, tolerance and visual inspection result.

Material Certificate

Sample material certificate format for confirmed material source and batch reference.

Coating Report

Sample coating thickness and salt spray requirement record when required by RFQ.

Packing Label

Sample carton label, part number, quantity, batch and destination information.

Traceability Record

Sample raw material lot, heat treatment, coating batch, final inspection and shipment record.

PPAP Document List

Sample PPAP document scope for automotive projects when required by buyer.

Quality documents available upon request

Send RFQ with Inspection Requirement