Train & Railroad
Description
Head type: Round, square, hex, T
Neck of the bolt: Cylindrical, oval or square
Thread: UNC, UNF, ISO, BSW
Diameter: M16---M30, 7/16"---1-1/2",
The length does not limit.
Grade: 10.9, 8.8, 8, 4.8, 6.8, 5.6, 4
Finish: Blacked, Black phosphorization, chrome-faced. Zinc plated, (white, yellow) hot dipped galvanized, plain and so on.
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Zhongbo Railway Fastening Co. Ltd
rail fastener
Address: 110 CITY STAR, 275 Huangeh Road,
Changshu, Jiangsu
China, 215500
Tel: 0086-512-52863072
Fax: 0086-512-52863559
