コボリ List of Products and Services

The "Petal Fastener" is a dropout prevention spring that provides a loosening prevention effect through the tightening force and pressure of the spring. Due to the influence of the tightening force, the outer diameter triangle displaces into a hexagon. When the end of the nut side contacts the nut and expands, the installation is complete. Additionally, this causes pressure to be applied to the nut by the three sides of the spring. 【Features】 ■ Loosening prevention effect from the spring's tightening force and pressure ■ Visual confirmation of installation completion ■ Can be installed on existing bolts and nuts ■ Available sizes range from M4 to M36 *For more details, please refer to the PDF document or feel free to contact us. A representative will provide an explanation. 　　TEL: 06-6747-4450 　　Mail: kobori-f@info.ne.jp 　　To: Shirayama

• bolt

"Burutaito" is a bolt and nut loosening prevention fitting that excels in high strength, fatigue strength, and resistance to deformation. The material used is high-strength stainless steel wire for springs, designed to prevent falling parts during construction. 【Features】 ■ Significantly improved workability ■ One-touch insertion ■ Material: High-strength stainless steel wire for springs (Hercules) ■ Excellent in high strength, fatigue strength, and resistance to deformation *For more details, please refer to the PDF document or feel free to contact us. A representative will provide an explanation. 　　TEL: 06-6747-4450 　　Mail: kobori-f@info.ne.jp 　　To Shirayama

• bolt

Our company, as a comprehensive primary trading company for stainless steel screws, stocks approximately 50,000 varieties of stainless steel screws and related products, and ships them nationwide just in time. We handle a wide range of products including bolts, nuts, small screws, tapping screws, and washer pins, so we can meet all of our customers' needs. Additionally, we also stock high-strength, high-corrosion-resistant fasteners BUMAX (strength grades 8.8 and 10.9). Please feel free to contact us if you have any requests. *For more details, please download the PDF or feel free to contact us.

• nut