V.S. Heat Treatment
Heat treatment & metal finishing experts
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V.S. Heat Treatment
Heat treatment & metal finishing experts
Our engineers reply with a tailored quote within 24 hours.
A single Samut Sakhon factory for hardening, Cr3+ zinc plating, phosphate and in-house testing of small fasteners — built for OEM and export buyers.
V.S. Heat Treatment is an ISO 9001:2015 factory in Samut Sakhon, Thailand, that hardens and plates small fasteners — screws, nuts, bolts, washers and pins — on a continuous mesh-belt line, above 2,000 tons per month. Cr3+ zinc plating is Cr6-free and EU-export ready, every lot ships with a test certificate, pricing is per kg or ton, and we reply to quotes within 24 hours.
Certified quality management (SGS Thailand). Consistent, auditable process control lot to lot.
Cr3+ (trivalent) zinc plating — RoHS/REACH compliant and free of hexavalent chromium for EU and automotive supply chains.
RoHS / REACH declarations, material and test certificates, and coating-thickness / hardness reports on request.
Continuous mesh-belt furnace for high-volume small parts, from prototype quantities to mass production.
Vickers (HV) hardness, X-ray coating thickness and salt-spray testing — a certificate with every lot, no external lab.
Transparent per-kilogram / per-ton pricing (not per piece), with a quotation reply within 24 hours.
We specialise in small fasteners and hardware in bulk — not large gears, shafts or mould inserts. If it runs on a continuous mesh-belt furnace, it is our core work.
Sourcing from abroad is straightforward — send the spec, we quote, you ship the parts in.
We serve OEM and distribution buyers across ASEAN, China and Europe with full compliance documentation.
Yes. We process customer-supplied parts and provide RoHS/REACH and test documentation for export to ASEAN, China and Europe. Pricing is per kg or ton and quotes are returned within 24 hours.
The minimum order is flexible — from a few prototype pieces to full mass production. Tell us the part, material and quantity and we will quote it.
Yes. We use Cr3+ (trivalent chromium) zinc plating, which is free of hexavalent chromium and RoHS/REACH compliant — suitable for EU and automotive supply chains. RoHS/REACH declarations are available.
Yes, in-house. High-strength parts (class 10.9 and above) that are electroplated are baked to relieve hydrogen embrittlement per ISO 4042, with logged time and temperature.
Send your drawing or a photo, the material grade and the target hardness or finish. We reply with a per-kg / per-ton quotation within 24 hours.