SINGLE SCREWs
Place of Origin: |
Zhejiang, China (Mainland) |
Product Detail
SINGLE SCREW
NO.: 5-3
Name: SINGLE SCREW
Description:
Ø15-Ø250
Length/Diameter Ratio:15~45
Screw can be selected from ordinary,gradual,
mutational,pinned,shielding,separating and exhausting types.
The compression ratio of the screw can be designed according to different products and mixtures.
TECHNICAL SPECIFICATIONS:
Material : Quality 38CrMoAlA
Hardness After Hardening & Tempering : HB240-280
Nitrided Hardness : HV850-1000
Nitrided Case Depth: 0.45~0.7mm
Nitrided Brittleness: Less Than Grade 2
Surface Roughness: Ra 0.4
Screw Straightness: 0.015mm
Surface Chromium-Plating's Hardness After Nitriding:≥900HB
Chromium-Plating Depth: 0.05~0.10mm
Alloy Hardness: HRC50-65
Alloy Depth: 0.8~2.0mm
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