Nippon Chemical Screws launches KYOUJIN plastic bolts
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Nippon Chemical Screws launches KYOUJIN plastic bolts

by Shun Otsuki
President & Editor in Chief KINSAN FASTENER NEWS

 

In early February, Nippon Chemical Screw (Tokyo, Japan) launched KYOUJIN, a thermoplastic bolt, nut, and washer with approximately 2.3 times stronger than RENY and PEEK.

KYOUJIN is a bolt using thermoplastic resin with glass fiber. KYOUJIN is the company's strongest product, adding strength to the company's products that are (1) lightweight, (2) insulating, (3) corrosion resistant, (4) insulating, and (5) non-magnetic. Their development began in the spring of 2020 and was completed in the fall of last year. This time, they released M12 hex bolts, hex nuts, and washers.

As an example, the tensile breaking load of the same size is 4953N for polycarbonate, 6805N for polyphenylene sulfide, 7511N for RENY, and 7650N for PEEK, while "KYOUJIN" is 17,000N, about 2.3 times stronger than RENY and PEEK.

In addition, the torsional breaking torque of KYOUJIN is 21.9 Nm, compared to 10.35 Nm for polycarbonate, 13.70 Nm for polyphenylene sulfide, 15.93 Nm for RENY, and 13.64 Nm for PEEK