Siam Union Manufacturing

We are a professional OEM/ODM supplier of fasteners; especially construction screws, self drilling screws, machine screws, furniture screws, bolts, stamping parts, and many more. We keep developing the quality and services for our customers. Therefore, we ensure that you will recieve the products that meet the international standards.

Currently, our customers have been giving a good support to us. So, we determine to develop administation system, human resource, and technology as well as emphasize on product quality and services in a reasonable price. This is to ensure that customers can trust and impress in our products.

Certified ISO19001:2015 standard

Our Products & Services


Self Tapping Screws

Drywall Screws


Self Drilling Screws


Machine Screws

Square Bolts / Hex Bolts

Construction & Sampling Parts

Oem Parts

J-Bolts / L- Bolts

Adjustable Screws

Our Factory

Our company has production system that meets the standard and many of modern machines which are Cold heading machine , Thread rolling machine,Self drilling screws forming machine, Head Trimming Machine,Stamping Machine, Lathe CNC and Induction Heater for Hot forging parts. These machines can respond well to our customers’ product preferrences including Construction Screws , Furniture Part, Motorcycle Part, Auto Part.


Siam Union Plastic Industry Co.,Ltd.

Siam Union Plastic Industry Company Limited (SUP Co., Ltd.) is a plastic company producing every types of plastic injection and designing molds by our specialists. Our main products are Plastic Raw Plugs, Air conditioning duct and accessories, fitting, tool supplies, In-House product and etc.

Currently, we constantly focus on developing administration system, technological production, and human resources in order to better serve for our customers.

Need to use our services

Send us your products requirements, We will contact you back as soon as possible.

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Contact us

168/5 Moo 5, Soi Krathumlom 26,
Phutthamonthon Sai 4 Road, Nakhon Pathom 73220

Tel: + 662-420-2170-1 | Fax: + 662-420-6765

Urgent: + 66-95-163-6589 | Sales: + 66-92-272-5168

Cell number: + 66-080-935-3457

| Industrial plants | Construction companies


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