High speed slf-drilling screw machine,cold heading mold,self-drilling screw point forming machine
Blackening Treatment for Stainless Steel and Copper Materials (Fasteners, Rigging, Castings, Precision Machined Parts): High surface hardness: 6H grade. Strong adhesion: 5A grade. Clean, oil-free, and environmentally friendly, compliant with EU RoHS (SGS report available upon request). Thin coating (3-8 μm), minimally impacting thread acceptance with go/no-go gauges. Resistant to acids, alkalis, and seawater corrosion, verified by corrosion tests. Heat-resistant up to 400°C without peeling. Effectively prevents thread locking and provides lubrication, with a friction coefficient between 0.19 and 0.25. Excellent salt spray resistance: starting from 120 hours, up to 300 hours, and can achieve 1000 hours. UV-resistant, colorfast, and aging-resistant. Consistent color across multiple production batches. Contact: 18661897293 / 18653205193
Metallographic testing equipment and consumables
Wire pickling and phosphating equipment
Stainless steel self tapping screws, machine screws, hexagonal self tapping screws, aluminum alloy pendant, stainless steel back bolt, mechanical anchor bolt, wedge anchor bolt, wedge anchor, etc
Metal mode; screw plate; plunger chip
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Afastener Exhibition Co., Ltd.
Tel:+86 (0)20 8985 1867
E-mail: Info@afastener.com







