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Parallel Twin Screw

Parallel Twin Screw

Overview

Parallel Twin Screw, listed by Zhejiang Zhongyang Screw Manufacturing Co., Ltd in Zhoushan, Zhejiang. The listing gives nitriding layer depth 0.5–0.8 mm, nitrided hardness HRC 56–58 and nitrided brittleness Less than grade 1.

Technical specifications

Nitriding layer depth0.5–0.8 mm
Nitrided hardnessHRC 56–58
Nitrided brittlenessLess than grade 1
Surface roughnessRa 0.4
Linearity of screw0.015 mm
Hard-chrome plating hardness≥ HRC 57
Chrome-plating layer depth0.03–0.09 mm
Bimetallic layer depth3 mm
Bimetallic layer hardnessHRC 58–62

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