QUALITY & TECHNOLOGY

We Only Claim What We Measure

We inspect every lot and record the result in our system. Test certificates are available on request.

KEYENCE IM-series measurement system — thread profile inspection

⌀13.00±0.27

8.00+0.00−0.36

16.0±0.35

M8 × 1.256g

TRACEABILITY

Lot-Level Traceability

From material receipt to certificate issue, everything is linked by a single lot number. Results are recorded for each process — forging, thread rolling, surface treatment and packing — so we can trace when and on which machine a part was made.

Material Receipt Incoming wire rod is registered by coil with a barcode. Grade and dimensions are verified and a quality sampling inspection is performed, with supplier and purchase order information recorded.

Work Order The production plan is issued as a work order number, to which all subsequent process records are linked.

Production by Process Forging, thread rolling, surface treatment and packing are recorded individually — which machine, when, and how many good and defective pieces at each step. Outsourced plating is included in the traceability scope.

Inspection First-middle-last article and in-process inspection results are recorded in the system in real time. All inspection results have been permanently retained since August 2021.

Shipment Items and lots are verified by full scanning immediately before shipment. Which lot went to which customer is recorded.

Certificate Issue On request, we cross-check the shipping record and issue the certificate from the inspection data of the lot actually delivered.

Forward tracing From a raw material coil — which work order it entered, and which customer it shipped to

Backward tracing From a shipped product — which work order made it, and which supplier's coil was used

Because the chain runs both ways — from raw material coil barcode to shipped lot — we can respond to supplier audits and material verification requests.

CERTIFICATE ISSUE POLICY

Our test certificates are issued only for lots actually shipped to the customer. Where no shipping record can be verified, no certificate is issued. Accordingly, our certificates cannot be used as quality evidence for another company's product.

QUALITY MANAGEMENT

Quality Management

We do our utmost to meet the varied quality requirements of our customers.
First-middle-last article checks and in-process inspection results are recorded and analysed in MES in real time, with systems in place to prevent defects.
We use modern inspection equipment for accurate results, and periodically commission external accredited laboratories to reinforce confidence.

CERTIFICATIONS

Certifications

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KS Q ISO 9001 : 2015 / ISO 9001 : 2015 QMS-1143

Scope of Certification	Quality Management System
Covered Products	Production of screws and bolts
Certification Body	Korean Standards Association (KSA)
Validity	2026-08-10 to 2029-08-09
First Certified	2002-08-10

Accredited by KAB (Korea Accreditation Board)

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KS Certification — KS B 1023 KTC21-0077

Scope of Certification	Cross Recessed Machine Screws
Covered Products	Pan head · Flat countersunk · Truss head machine screws
Certification Body	Korea Testing Certification (KTC)
Validity	Periodic audit due 2027-07-13
First Certified	2021-07-14

Certificate reissued 24 July 2024 following periodic audit

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KS Certification — KS B 1003 KTC21-0076

Scope of Certification	Hex Socket Head Cap Screws
Covered Products	Stainless steel A2-70
Certification Body	Korea Testing Certification (KTC)
Validity	Periodic audit due 2027-07-13
First Certified	2021-07-14

Certificate reissued 24 July 2024 following periodic audit

If you need a copy of a certificate, Contact Us and we will provide it. Test certificates (material, product inspection, tensile, hardness, etc.) are also available.

Terms of Use for Certificates — The certificates shown on this page are issued to JungKum Fastener Industrial Co., Ltd. and are valid only for products we manufacture and supply. Third parties, including agents and distributors, must not present them as their own certification or apply them to products not made by us. Unauthorised reproduction or redistribution of these images is prohibited and may be subject to legal action.

Authenticity can be verified directly with the issuing bodies. ISO 9001 with the Korean Standards Association (certificate no. QMS-1143, QR code on the certificate); KS certification with Korea Testing Certification (KTC21-0077 · KTC21-0076).

INSPECTION

Inspection Items 12 items

Tensile testVisual inspectionTorsional strength testPrecision dimensional measurementHardness measurementCross recess gauge checkImpact testThread ring gauge checkCorrosion resistance testRoHS testingPlating thickness measurementComposition analysis