ＫＤＡ Product Lineup

Ceramic Hex Nuts (Metric Standard) ● Material: Al2O3 (Alumina), ZrO2 (Zirconia) ● Size: M2 to M10 ● Manufacturing Method: 3D Slip Casting (In-house developed) * Produces high-quality ceramic screws without cutting. Achieves low prices through cost-effective processes. <Alumina> - The most commonly used ceramic - Excellent insulation properties - Good chemical resistance (difficult to be affected by most acids and alkalis) - Chemically stable (difficult to release impurities) - Excellent heat resistance (maximum operating temperature approximately 1500°C) - High thermal conductivity - Lower thermal shock resistance and fracture toughness compared to other ceramics <Zirconia> - The strongest ceramic in terms of mechanical strength at room temperature - High fracture toughness (great resistance, ductile) * for cutting tools, implants, etc. - Maximum operating temperature approximately 1200°C, good thermal shock resistance (Δ400°C) - Thermal expansion rate comparable to metals (can be incorporated into metals) - Low thermal conductivity * for refractory materials - Difficult to be affected by chemicals, but can be eroded by some acids and alkalis - Conductive under high temperature and low oxygen conditions * caution for use in insulation purposes

• bolt
• Ceramics

Ceramic Gas Hole Screws with Nut Head (Metric) ● Material: Al2O3 (Alumina), ZrO2 (Zirconia) ● Size: M2 to M8 ● Neck Length: 3 to 45mm ● Manufacturing Method: 3D Slip Casting (In-house developed) * Produces high-quality ceramic screws without cutting. Achieves low prices through cost-effective processes. <Alumina> - The most commonly used ceramic - Excellent insulation properties - Good chemical resistance (resistant to most acids and alkalis) - Chemically stable (difficult to release impurities) - Excellent heat resistance (maximum operating temperature approximately 1500°C) - High thermal conductivity - Lower thermal shock resistance and fracture toughness compared to other ceramics <Zirconia> - The strongest ceramic in terms of mechanical strength at room temperature - High fracture toughness (great resistance, ductile) *Used for cutting tools, implants, etc. - Maximum operating temperature approximately 1200°C, good thermal shock resistance (Δ400°C) - Thermal expansion rate comparable to metals (can be incorporated into metals) - Low thermal conductivity *Used as a refractory material - Difficult to corrode by chemicals, but susceptible to some acids and alkalis - Conductive under high temperature and low oxygen conditions *Caution for use in insulation purposes

• bolt
• Ceramics

Ceramic Socket Head Screws (Metric) ● Material: Al2O3 (Alumina), ZrO2 (Zirconia) ● Size: M1.8 to M10 ● Neck Length: 5 to 45mm ● Manufacturing Method: 3D Slip Casting (In-house developed) * Produces high-quality ceramic screws without cutting. Achieves low prices through cost-effective processes. <Alumina> - The most commonly used ceramic - Excellent electrical insulation - Good chemical resistance (resistant to most acids and alkalis) - Chemically stable (difficult to release impurities) - Excellent heat resistance (maximum operating temperature approximately 1500°C) - High thermal conductivity - Lower thermal shock resistance and fracture toughness compared to other ceramics <Zirconia> - The strongest ceramic in terms of mechanical strength at room temperature - High fracture toughness (great resistance, ductile) * for cutting tools, implants, etc. - Maximum operating temperature approximately 1200°C, good thermal shock resistance (Δ400°C) - Thermal expansion rate comparable to metals (can be incorporated into metals) - Low thermal conductivity * used as refractory material - Difficult to corrode by chemicals, but can be eroded by some acids and alkalis - Conductive under high temperature and low oxygen conditions * caution for use in insulation applications

• bolt
• Ceramics

Ceramic Hexagon Head Screws (Metric) ● Material: Al2O3 (Alumina), ZrO2 (Zirconia) ● Size: M1.4 to M10 ● Underhead Length: 3 to 45mm ● Manufacturing Method: 3D Slip Casting (In-house developed) * Produces high-quality ceramic screws without cutting. Achieves low prices through cost-effective processes. <Alumina> - The most commonly used ceramic - Excellent insulation properties - Good chemical resistance (resistant to most acids and alkalis) - Chemically stable (difficult to release impurities) - Excellent heat resistance (maximum operating temperature of about 1500°C) - High thermal conductivity - Lower thermal shock resistance and fracture toughness compared to other ceramics <Zirconia> - The strongest ceramic in terms of mechanical strength at room temperature - High fracture toughness (great resistance, ductile) * For cutting tools, implants, etc. - Maximum operating temperature of about 1200°C, good thermal shock resistance (Δ400°C) - Thermal expansion rate comparable to metals (can be incorporated into metals) - Low thermal conductivity * Refractory material - Difficult to corrode by chemicals, but susceptible to some acids and alkalis - Conductive under high temperature and low oxygen conditions * Caution for use in insulation purposes

• bolt
• Ceramics

Ceramic Hexagon Socket Bolt (Metric) ● Material: Al2O3 (Alumina), ZrO2 (Zirconia) ● Size: M2 to M10 ● Underhead Length: 3 to 45mm ● Manufacturing Method: 3D Slip Casting Method (In-house developed method) * Produces high-quality ceramic screws without cutting. Achieves low prices through cost-effective processes. <Alumina> - The most commonly used ceramic - Excellent insulation properties - Good chemical resistance (not easily affected by most acids and alkalis) - Chemically stable (difficult to release impurities) - Excellent heat resistance (maximum operating temperature approximately 1500°C) - High thermal conductivity - Lower thermal shock resistance and fracture toughness compared to other ceramics <Zirconia> - The strongest ceramic in terms of mechanical strength at room temperature - High fracture toughness (great resistance, ductile) * For cutting tools, implants, etc. - Maximum operating temperature approximately 1200°C, good thermal shock resistance (Δ400°C) - Thermal expansion rate comparable to metals (can be incorporated with metals) - Low thermal conductivity * Refractory material - Not easily affected by chemicals, but can be eroded by some acids and alkalis - Conductive under high temperature and low oxygen conditions * Caution for use in insulation applications

• bolt
• Ceramics

<PEEK Resin> - Excellent heat and high-temperature properties (continuous use temperature of about 250°C) - High mechanical strength (resistant to impact, tension, creep, fatigue, and wear) - Excellent chemical resistance (strong against acids, alkalis, and organic solvents, except concentrated sulfuric acid) - Steam resistance (unlikely to hydrolyze under high-temperature steam) - Flame-resistant and low smoke generation - Radiation resistance (not easily degraded by radiation) - Excellent electrical insulation properties - High purity with low leaching of impurities.

• Engineering Plastics
• Other Auto Parts
• CMP Equipment

● Standardization of ring material made from super engineering plastic PEEK. ● PEEK natural grade (black) * Daicel-Evonik Co., Ltd. VESTAKEEP L4000G ● Size (outer diameter from 100 to 360, various inner diameters) ● Ring thickness (10, 15, 20, 25, 30, 35mm) ● Manufacturing method: Smart molding (in-house developed molding method) * Select a size close to the product and process it in small quantities for commercialization. By utilizing this material, which is cheaper per kilogram than commercial products, cost reduction is possible. <PEEK resin> - Excellent heat resistance and high-temperature properties (continuous use temperature of about 250°C) - High mechanical strength (resistant to impact, tensile, creep, fatigue, and wear) - Excellent chemical resistance (strong against acids, alkalis, and organic solvents except concentrated sulfuric acid) - Steam resistance (unlikely to undergo hydrolysis under high-temperature steam) - Flame-resistant and low smoke generation. - Radiation resistance (not easily degraded by radiation) - Excellent electrical insulation - High purity, with low leaching of impurities.

• Engineering Plastics
• Other Auto Parts
• CMP Equipment

● Standardized the material of the ring made from super engineering plastic PEEK. ● PEEK natural grade (natural color: gray or light brownish gray) * Manufactured by Daicel-Evonik Co., Ltd. VESTAKEEP L4000G ● Size (outer diameter from 100 to 360, various inner diameters) ● Ring thickness (10, 15, 20, 25, 30, 35 mm) ● Manufacturing method: Smart molding (in-house developed molding method) * Select a size close to the product and create it with minimal processing. By using this material, which has a lower cost per kilogram than commercial products, cost reduction is possible. <PEEK Resin> - Excellent heat resistance and high-temperature properties (continuous use temperature of about 250°C) - High mechanical strength (resistant to impact, tensile, creep, fatigue, and wear) - Excellent chemical resistance (strong against acids, alkalis, and organic solvents, except concentrated sulfuric acid) - Steam resistance (unlikely to undergo hydrolysis under high-temperature steam) - Flame-resistant and low smoke generation. - Radiation resistance (not easily degraded by radiation) - Excellent electrical insulation properties - High purity, with low leaching of impurities.

• Engineering Plastics
• Other Auto Parts
• CMP Equipment

● Standardized the material of 【square plates】 made of super engineering plastic PEEK. ● PEEK natural grade (black) * Manufactured by Daicel-Evonik Co., Ltd. VESTAKEEP L4000G ● Sizes (various from 150x150 to 400x400) ● Plate thickness (from 1 to 31mm, in increments of 1mm) ● Manufacturing method: Smart molding (in-house developed molding method) * Select a size close to the product and minimize processing to commercialize. By using this material, which is cheaper per kilogram than commercial products, cost reduction is possible. <PEEK Resin> - Excellent heat resistance and high-temperature properties (continuous use temperature of about 250°C) - High mechanical strength (resistant to impact, tensile, creep, fatigue, and wear) - Excellent chemical resistance (strong against acids, alkalis, and organic solvents except concentrated sulfuric acid) - Steam resistance (difficult to hydrolyze under high-temperature steam) - Flame-resistant and low smoke generation. - Radiation resistance (not easily degraded by radiation) - Excellent electrical insulation - High purity, with low leaching of impurities.

• Engineering Plastics
• Other Auto Parts
• CMP Equipment

● Standardized the material of square plates made from super engineering plastic PEEK. ● PEEK natural grade (natural color: gray or light brownish gray) * Manufactured by Daicel-Evonik Co., Ltd. VESTAKEEP L4000G ● Sizes (various from 150x150 to 400x400) ● Plate thickness (from 1 to 31mm, with thickness increments of 1mm) ● Manufacturing method: Smart molding (in-house developed molding method) * Select a size close to the product and minimize processing for commercialization. By utilizing this material, which has a lower cost per kilogram than commercial products, cost reduction is possible. <PEEK Resin> - Excellent heat resistance and high-temperature properties (continuous use temperature of about 250°C) - High mechanical strength (resistant to impact, tension, creep, fatigue, and wear) - Excellent chemical resistance (resistant to acids, alkalis, and organic solvents except concentrated sulfuric acid) - Steam resistance (difficult to hydrolyze under high-temperature steam) - Flame-resistant and low smoke generation. - Radiation resistance (not easily degraded by radiation) - Excellent electrical insulation properties - High purity, with low leaching of impurities.

• Engineering Plastics
• Other Auto Parts
• CMP Equipment

● Standardized round plate material made of super engineering plastic PEEK. ● PEEK natural grade (black) * Manufactured by Daicel-Evonik Co., Ltd. VESTAKEEP L4000G ● Diameters (100, 120, 140, 160, 180, 200, 220, 240, 260, 280, 300, 320, 340, 360) ● Thicknesses (10, 15, 20, 25, 30, 35) ● Manufacturing method: Smart molding (in-house developed molding method) * Select a size close to the product and create the product with minimal processing. By utilizing this material, which has a lower cost per kilogram than commercial products, cost reduction is possible. <PEEK Resin> - Excellent heat resistance and high-temperature characteristics (continuous use temperature of about 250°C) - High mechanical strength (resistant to impact, tensile, creep, fatigue, and wear) - Excellent chemical resistance (resistant to acids, alkalis, and organic solvents except for concentrated sulfuric acid) - Steam resistance (unlikely to hydrolyze under high-temperature steam) - Flame-resistant and low smoke generation. - Radiation resistance (not easily degraded by radiation) - Excellent electrical insulation - High purity with low leaching of impurities.

• Engineering Plastics
• Other Auto Parts
• CMP Equipment

Ceramic Hex Bolts (Metric Standard) ● Material: Al2O3 (Alumina), ZrO2 (Zirconia) ● Size: M2 to M10 ● Underhead Length: 3 to 45mm ● Manufacturing Method: 3D Slip Casting (In-house Development) * Producing high-quality ceramic screws without cutting. Achieving low prices through cost-effective processes. <Alumina> - The most commonly used ceramic - Excellent insulation properties - Good chemical resistance (resistant to most acids and alkalis) - Chemically stable (difficult to release impurities) - Excellent heat resistance (maximum operating temperature approximately 1500°C) - High thermal conductivity - Lower thermal shock resistance and fracture toughness compared to other ceramics <Zirconia> - The strongest ceramic in terms of mechanical strength at room temperature - High fracture toughness (great resistance, ductile) * for cutting tools, implants, etc. - Maximum operating temperature approximately 1200°C, good thermal shock resistance (Δ400°C) - Thermal expansion rate comparable to metals (can be integrated with metals) - Low thermal conductivity * used as a refractory material - Difficult to corrode by chemicals, but susceptible to some acids and alkalis - Conductive under high temperature and low oxygen conditions * caution for use in insulation purposes

• bolt
• Ceramics

● Standardized round plate material made of super engineering plastic PEEK. ● PEEK natural grade (natural color: gray or light brownish gray) * Manufactured by Daicel-Evonik Co., Ltd. VESTAKEEP L4000G ● Diameters (100, 120, 140, 160, 180, 200, 220, 240, 260, 280, 300, 320, 340, 360) ● Thicknesses (10, 15, 20, 25, 30, 35) ● Manufacturing method: Smart molding (in-house developed molding method) * Select a size close to the product and process it in small quantities for commercialization. By using this material, which has a lower cost per kilogram than commercial products, cost reduction is possible. <PEEK Resin> - Excellent heat resistance and high-temperature characteristics (continuous use temperature of about 250°C) - High mechanical strength (resistant to impact, tensile, creep, fatigue, and wear) - Excellent chemical resistance (strong against acids, alkalis, and organic solvents, except for concentrated sulfuric acid) - Steam resistance (unlikely to hydrolyze under high-temperature steam) - Flame-resistant and low smoke generation. - Radiation resistance (not easily degraded by radiation) - Excellent electrical insulation - High purity with low leaching of impurities.

• Engineering Plastics
• Other Auto Parts
• CMP Equipment