Product introduction
　

HomeProduct introductionBolt
Product introduction
List of products handled Mejor Screw head type Small screw Self-tapping screws Tap-type screw Pre-assembled washer and screw Wood screw Bolt Nut Washer Retaining ring (Snap ring) Type of plating

Bolt

Bolt refers to a large diameter screw used in conjunction with a nut and other fittings.

Hexagon (Hex) bolt（Trimming bolt)

Hexagon (Hex) bolt has a regular hexagon head. A circular head formed by cold forging forms a regular hexagon shape by trimming the edges through a die in the next process. The hexagonal head is clamped with tools such as wrenches, and a nut is attached on the opposite side for use.

Upset head bolt

Upset bolt is the one whose head is formed solely by cold forging. It holds characteristics of both bolt and small screw, but since the head shape is formed only by cold forging, it has a rounded head shape overall, unlike hexagon (hex) bolt which undergoes trimming.

Hexagon socket head bolt

Hexagon (Hex) socket bolt is the one with a hexagonal hole in their heads. During tightening, Hexagon wrenches can be used, allowing work in confined spaces. Therefore, there is an advantage in compact design during product development.

Wing bolt

Wing bolt with a pair of knobs on its head resembling bird's wings, which can be tightened and removed by gripping it with fingers.
We handle a wide variety of products in addition to the products listed on this site.
  • Regarding materials, plating, etc., we are pleased to propose products according to the specifications or applications required by clients.
  • We also support automatic plastic bagging. If you have any requests, we are willing to accommodate them.
Please feel free to contact us.

Kobayashi Byora Co., Ltd.
〒536-0001
2-8-20, Furuichi, Joto-ku, Osaka-shi, Osaka
(tel) +81-6-6939-0521　　(fax) +81-6-6939-0520

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