Technical Specifications：
★ Nitriding Layer Depth: 0.5-0.8mm
★ Nitriding Hardness: 900-1000HV
★ Nitriding Brittleness: Level 1
★ Surface Roughness: Ra 0.4μm
★ Screw Straightness: 0.015mm
★ Chromium Plating Hardness after Nitriding: ≥950Hv
★ Bimetallic Hardness: HRC55°-62°
★ Chromium Plating Thickness: 0.03-0.08mm
★ Bimetallic Depth: >2mm
★ Bimetallic Screws: 1. Base Material 42CrMo 2. Base Material 38CrMoALA 3. Base Material SKD61
★ Stainless Steel Screws – Suitable for: PC, PVC, acrylic, transparent materials, etc.
Note: Our factory can undertake surveying, design, and processing of screws, barrels, etc., based on drawings or samples. We offer excellent quality and comprehensive service to meet customer product requirements! Welcome both new and old customers to inquire and patronize!