BSF Company

Boonsan Fasteners Ltd., Part. or BSF was established in 1973, to manufacture and supply spring washers in Thailand, under the name ‘Boonsan Engineering’. BSF since then has committed to continue development in product quality and become the first ‘socket cap screws’ manufacturer in Thailand who specialized in ‘cold-forming’ products in 1980.


Presently, BSF is one of the leading fastener manufacturers and suppliers for screws, nuts, bolts, spring washers, and threaded bars in Thailand. Also BSF has supplied Thailand market with qualified fasteners imported from Taiwan and Japan. BSF is now a well known brand, which is growing in various industries all over Thailand.