Daiichi Kogyo develops SSOO nut PLUS | FASTENER EURASIA MAGAZINE
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Daiichi Kogyo develops SSOO nut PLUS that does not loosen by embedding in plastic

by Shun Otsuki
President & Editor in Chief KINSAN FASTENER NEWS

 

Daiichi Kogyo Co., Ltd. (Shizuoka Prefecture) released "SSOO Nut PLUS", which is an improved version of "SSOO Nut" for plastic inserts that supports high torque, in September 2020. It supports not only the conventional outsert method of embedding by hot press fitting after plastic molding, but also the insert method of embedding during plastic injection molding. It will be sold to the automobile industry, where the adoption of plastic parts is advancing due to weight reduction.

The "SSOO nut" is an outsert type insert nut (outsert nut) that has a unique octagonal shape that exhibits high torque resistance, does not run idle when tightened after embedding, and protects plastic parts by not loosening.

The "SSOO nut" through which the female thread penetrates does not support the insert method of embedding during injection molding, but the newly developed "SSOO nut PLUS" has a thin horizontal cap attached and the plastic enters the inside of the nut. By preventing this, it corresponds to the insert method. Since it also supports the conventional outsert method, it can be used properly according to the user's design.

The "SSOO nut" through which the female thread penetrates does not support the insert method of embedding during injection molding, but the newly developed "SSOO nut PLUS" has a thin horizontal cap attached and the plastic enters the inside of the nut. By preventing this, it corresponds to the insert method. Since it also supports the conventional outsert method, it can be used properly according to the user's design.

Utilizing the technology of the bag nut, which is a representative product of the company, the thin horizontal cap was welded. When using cold heading for cap nuts, it is necessary to secure a cap thickness of at least 2 mm, but a cap thickness of 0.5 mm has been achieved by welding. By securing a long effective screw part with low dimensions, they can meet the needs of making plastic parts as thin as possible by saving space.

The company released "SSOO Bolt" in July 2020. It is the company's first insert bolt for resin that supports high torque, and has the feature of protecting resin products without idling even with high tightening torque like the "SSOO nut".