　Bolt and nut ASME B1.1 Standard

2015-12-16 17:56:55 COMMENT：0 HITS：

Studbolts and nuts 1" diameter and smaller shall have unified coarse thread series (UNC) with a Class 2A fit for external threads and a Class 2B thread for internal threads.
Studbolts and nuts 1 1/8" diameter and larger shall have unified 8 thread Series (8UN) with a Class 2A fit for external threads and a Class 2B thread for internal threads.
Please note that bolts shall have a full continuous thread and threads shall comply with ASME B1.1 .
　　SRT is a Group Company. Full name is Hebei Shengtian Group Reaguan Pipeline Co., Ltd, which mainly produce and export seamless steel pipes, spiral steel pipes, welded steel pipes and oil pipes .

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