SAIMA CORPORATION List of Products and Services

Recess: 6-Lob (Hexalobular according to JIS B 1015) There is no protrusion of the head after tightening. It is 1/3 lighter compared to iron and stainless steel products. Ideal for devices and robots where weight reduction is desired. (Note: Reference value) M3x6 Aluminum: 0.14g Iron: 0.42g Stainless steel: 0.43g

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● Two-Hole Nut Used for tightening, fastening, and securing with male threads. This type, designed with two holes, is preferred for its aesthetic appeal and can also be used for decorative purposes. Please inquire about inch nuts. ● Candy Nut A special nut finished with a beautiful spherical surface. During fastening, the hexagonal part beneath the sphere can be opened and closed using a dedicated tool. The hexagonal part is designed to be hidden by the sphere when viewed from directly above. Due to its structure, the hexagonal part cannot accommodate standard wrenches or spanners, making it an ideal special nut for preventing tampering. ● Eboshi Nut Due to its unique triangular shape, it cannot be removed with standard tools. By using a special tool, fastening with existing tools becomes possible. The TRF nut is the first to support a large diameter (M16). *The photo shown is of the Two-Hole Nut.

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You can easily tighten it with a wrench or screwdriver. As you tighten it, the hexagonal head will break off, and the remaining screw will have no recess, making it very difficult to remove with standard tools. Once the screw is installed, it cannot be easily removed, so please handle it with care after confirming the usage conditions.

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A pin is standing in the center of the 5 holes, and it cannot be removed with standard tools. It can be tightened and released with a special tool.

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Due to the triangular recess shape, it cannot be removed with standard tools. It can be fastened and released with a dedicated tool.

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This is a hex socket bolt with a low head height. It is ideal for tight spaces. Made of steel with a strength grade of 8.8, it can be used in areas where strength is required. For those seeking further space-saving and lightweight options, we recommend Saima's ultra-low head screws, the 310 Slim. https://www.saima.co.jp/product/slim/

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The anti-tamper screw TRF is a security measure screw that is difficult to remove without using a special tool. It cannot be removed with commercially available screwdrivers or wrenches, making it suitable for preventing tampering, disassembly, theft, and for safety measures. Additionally, due to the special shape of the screw head, it is increasingly being used as a "design screw." There are over 10 types of screw head shapes and 3 types of nut shapes to choose from. TRF is available for immediate delivery and can be purchased from just one piece. Sizes range from M2 to M12 (nuts up to M16), and inch sizes are also in stock. Sales to individuals are not available. We do not sell removal tools separately. Compliant with RoHS directives. If you have any other questions regarding our products, please feel free to contact us.

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Tightening is done with a standard flathead screwdriver, and removal is done using a "one-sided removal tool." Since there is no recess in the head, dust does not accumulate, making it suitable for outdoor use.

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In the triangle hole, the plus-minus driver spins freely.

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Type with a pin standing in a hexagonal hole Good torque transmission during tightening

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A pin stands in the center of the star-shaped hole, and a standard 6-point wrench does not fit. It has good torque transmission, does not cam out, and offers excellent workability.

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There is no hole in the head, and the round shape with 5 grooves cannot be grasped with pliers. Please use this when a small size is needed for TRF products. (M2/M2.3/M2.5/M2.6)

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There are two types of recess shapes: Type A and Type B, and production sizes range from M3 to M10. Type A button heads are available for stock sale. Materials can be stainless steel, iron, etc. We also support blackening of stainless steel and nylon locking processing. Please contact us for more details.

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It is a type with two holes that is preferred for its design and can also be used for decorative purposes.

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This is a tapping screw for resin that does not require a metal insert. The process of removing metal inserts during resin recycling incurs very high costs. With a non-insert design, it is possible to reduce the total production costs, including material recycling. −− Features −− ◆ A 30-degree thread that cuts sharply into the resin It allows for repeated use without putting stress on the counterpart resin. ◆ Low insertion torque and high break torque The adoption of a triangular thread shape and the height difference of the 30-degree thread achieve low insertion torque and high break torque. ◆ Environmentally friendly trivalent chromate (hexavalent chromium-free) It is an electro-galvanized coating that does not contain harmful hexavalent chromium. It offers corrosion resistance equal to or greater than conventional chromate (yellow chromate). ◆ We will propose appropriate "pilot holes" and "tightening torque" using a torque analyzer.

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＝＝＝＝＝ Summary ＝＝＝＝＝ - You can simulate the best match of the three major elements in tapping screw design: "pilot hole diameter" + "tightening torque" + "type of screw." - The tightening characteristics on actual workpieces are displayed in a graph. What type of screw should I use? I changed the material of the counterpart, but is the pilot hole still okay as it is? I'm experiencing screw stripping right away. ↓ Immediate solution with the Torque Analyzer! ★ For more details, please request the materials and take a look.

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"Anyway, it's thin" The minimum head height is only 0.5mm! Thinner than a 1 yen coin (about 1.5mm)! "Anyway, it's light" Lighter than socket caps and small screws! Can be replaced! Ideal for products like drones that need to be lighter by even 1g! "Perfect for thin plate fastening" Can eliminate protrusions even on thin plates where countersinking is not possible! "Hard to cam out" Two types of recess (tool hole) shapes that are hard to cam out: - 6-lobe (star shape) - Cross (cross hole type) "Head strength guarantee" Even when tightened with the same torque as small screws, the head won't break off! Feel free to use it as a replacement for small screws. "Plating guarantee" ◆ Iron - Trivalent Chromate → Guarantees a film thickness of 5μm or more ◆ Iron - Nickel plating → Guarantees copper undercoat + nickel

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A pin is standing in the center of the cross slot, and a regular Phillips screwdriver cannot fit.

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Various inch screws available for stock sale. (Immediate delivery for #0-1/2 inch, alloy steel and stainless steel) ★ We also have a comprehensive catalog available, so please request it via the request button. ＝＝＝＝＝　Features　＝＝＝＝＝ ● We provide a small import service for various inch screws via regular shipments from the United States every week. ● We can also order sizes not in standard stock. Please feel free to contact us.

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The TRF is very difficult to remove unless special tools are used. We do not sell the tools separately.

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