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V.S. Heat Treatment logoV.S.Heat Treatment
Metal finishing in Central Thailand

Zinc Plating • Heat Treatment • Phosphating in Nakhon Pathom

Finishing for small parts — screws, nuts, bolts, washers and all hardware — for factories and shops in Nakhon Pathom. ISO 9001:2015 with salt-spray test certificates.

We run one plant, and it is in Samut Sakhon. This page covers collection and delivery for customers in Nakhon Pathom — it is not a branch or a facility in Nakhon Pathom.

Customers in Nakhon Pathom can send work to V.S. Heat Treatment any business day. We specialize in high-volume small parts such as screws, nuts, bolts, washers, pins and rivets, with capacity up to 2,000 tonnes per month and in-house lab quality control on every lot.

Central Thailand
V.S. Heat Treatment Co., Ltd.

Why factories in Nakhon Pathom choose us

Small-part specialists

Processes built specifically for screws, nuts, bolts and washers — minimizing parts sticking together, clogged threads and uneven coating.

Nationwide delivery

Pickup and delivery to plants in Nakhon Pathom through partner carriers, on time, with full piece counts on every lot.

Certified results

Every job ships with hardness (HRC) and salt-spray results to ASTM B117, ready to pass on to your end customer.

Tunable specs

Choose plating color, coating thickness and hardness level to match how the part is actually used.

Parts we finish

Focused on high-volume small parts

Shipping to and from Nakhon Pathom

The distance from Nakhon Pathom to our plant in Samut Sakhon is no obstacle. Most customers use parcel freight or their own factory transport. We help coordinate logistics and report job status at every step — contact our team to plan a pickup/delivery cycle that fits your volume.

FAQ — Nakhon Pathom

How do you handle work from Nakhon Pathom?+

Send parts via parcel freight or your factory transport to Samut Sakhon. Once finished, we ship them back with test certificates. Ask about pickup cycles via LINE or phone.

Do you accept small low-volume jobs?+

Yes — flexible minimums suit both mass production and sample/small lots. Contact us for a quote based on your real volume.

Do you provide quality certificates?+

Yes. Every lot includes hardness and salt-spray (corrosion) results under our ISO 9001:2015 system.

How long does it take?+

It depends on part type and volume, including transit to and from Nakhon Pathom — contact our team to agree on a delivery schedule.

About this province

What is manufactured here

The factory mix concentrated in this province decides which finishes get ordered most.

  • food & seafood processing
  • steel & metalworking
  • general manufacturing & SMEs

Named estates and factory districts

Real place names in the province. IEAT-designated estates are marked.

  • สามพราน
  • นครชัยศรี
  • อ้อมใหญ่
  • พุทธมณฑล

Parts we most often take from this area

สกรู · โบลต์ก่อสร้าง · พิน · อะไหล่เครื่องจักรอาหาร

Steel grades seen in work from this province

What work from this province has to meet

These figures come from the industries concentrated here, not from a national average.

 Property classSalt sprayHardnessMaterials seenStandards
Machinery8.8 / 10.9 / 12.996–240 h NSS30–55 HRCSCM435, SUJ2, SK5, spring steelISO 898-1 · ISO 6157 · DIN
Agricultural Machinery8.8 / 10.9240–500 h NSS30–50 HRCS45C, SCM435, boron steelISO 898-1 · ISO 4042
Fastener Manufacturers — Toll Processingbolts 4.8–12.9 · nuts class 8 / 10 / 12to the number your own customer specifiesthe class band, plus a surface-versus-core comparisonSWCH10B21, SWCH10B33, SCM435, SCr440, S45CISO 898-1 · ISO 898-2 · ISO 6157 · ISO 4042

Failure modes to watch on this kind of work

Questions we get from this province

We are in สามพราน — can you take our work?
Yes. We take work from factory districts across Nakhon Pathom — สามพราน, นครชัยศรี, อ้อมใหญ่, พุทธมณฑล among them — not only from designated estates. Parts travel by our own vehicles or by parcel freight, with a flexible minimum for small lots and samples.
What specification does work from Nakhon Pathom usually have to meet?
It follows the local industry mix. For Machinery, common in Nakhon Pathom, the usual call-out is property class 8.8 / 10.9 / 12.9, hardness 30–55 HRC and 96–240 h NSS corrosion resistance, on SCM435, SUJ2, SK5, spring steel.
What hardness do the grades from Nakhon Pathom reach?
The grades seen most from this area are SCM435, SCM440, SUJ2, SK85 (SK5), SKS3, SUP9. Attainable hardness varies with grade and section, and the value specified in service after tempering is always below the as-quenched ceiling — the per-grade pages carry both numbers.

Route into the plant

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