Aug. 9th, 2025 – Aug. 17th, 2025No receiving or shipping operations on Aug.8th.Resume operations on Aug. 18th, 2025Wishing you a fun and relaxing summer!

Dear Valued Customers, Thank you for your continued patronage of SAIMA Group. SAMURAI Fastener Story Vol.22 updated! Please take a look! 【Japanese Micro Screw Manufacturing Technology】 At SAIMA Group, we manufacture screws ranging from M1 to M12, using a variety of materials including:・Carbon steel・Alloy steel・Stainless steel (A2, A4)・Aluminum (5000, 6000, 7000 series)・Brass・CopperOur minimum production quantity is 30,000 pieces — considered a small lot by international standards. In fact, … read more

Good day to you. When selling SAIMA’s 310Slim, we often receive consultations from developers and designers. “Does it function properly as a screw?”  “Is the fastening force adequate?” “Can you guarantee that the fastened object will remain in place?” etc… Since 310Slim is our original product not certified by JIS or ISO, there are many more checks to be made. ・Mechanical Properties ・Loosening after fastening(Torque Transmission, mating material damage) ・Delayed fracture of screws ・Broken Screw Head There are many more check items than this. In the past, there have been several companies overseas that have manufactured counterfeit and copy products. After 25 years of manufacturing and selling the 310 Slim, for various reasons, […]

Good day to you. Since our last post, some of customer asked us that same problem was happening. Security fastener 『TRF(Tamper Resistant Fastener）』is used in a variety of places for security and anti-theft purposes. If you chase cheap prices, it is quite possible that you will end up with a poor quality product like this. SAIMA is selling security fasteners as TRF brand from 1998 in Japan. Now, our quality is highly regarded by many customers in Japan. If you have any of these problems, please contact SAIMA first.

Dear Valued Customers, Thank you for your continued patronage of SAIMA Group. SAMURAI Fastener Story Vol.21 updated! Please take a look! 【310Express Company is the export division of the SAIMA Group.】 SAIMA, the core company of the SAIMA Group, is a manufacturer specialized in technically advanced screw and fastener solutions.Within Japan, we not only produce our proprietary SAIMA PB Fasteners but also offer technical consultations for a wide range of fastening issues, such as: • Anti-loosening solutions• Torque management• Tapping screw pilot hole recommendations• Prevention of bolt breakage At 310Express Company, we also handle these kinds of technical consultations.Even at more basic stages, we support design decisions like: … read […]