Pan Head Square Recess Tapping Screws Type AB with Trivalent Chromium Coating

410 Stainless Steel Self-Tapping Screws with Heat Treatment and White Zinc Plating

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How Can We Ensure Corrosion-Free Assembly in High-Humidity Appliance Environments?

Our pan head tapping screws feature trivalent chromium white zinc plating with dehydrogenation treatment, providing superior corrosion resistance that passes salt spray testing while eliminating hydrogen embrittlement risks. The Type AB thread design ensures secure fastening in thin sheet metal commonly used in appliance housings. Contact us for samples and salt spray test reports specific to your application requirements.

With 45 years of manufacturing expertise, we ensure complete ISO working instruction compliance throughout the production process, from initial forming through final inspection before shipping. Our comprehensive quality control measures include square plug gauge verification and paint surface inspection on the head part, guaranteeing consistent performance in demanding applications. These Type AB tapping screws deliver superior thread-forming capabilities in sheet metal and thin materials, while the trivalent chromium white zinc coating provides excellent corrosion resistance and the dehydrogenation process eliminates hydrogen embrittlement risk for enhanced durability in industrial fastening applications.


Pan Head Tapping Type AB

CV003-150819-1

Process: Using multi blow header to make the head and then rolling before acid washing and heat treating. At last spray painting on the head part
All the items are inspected during the process and before shipping, complying with ISO Working Instruction
Inspection Tools: Calipers, Protrusion-height gage, Micrometer, 2.5D and 2D projector
Measurement Points: Head diameter, Head height, Square depth, Square plug gauge, Major diameter, Minor diameter, Thread angle, Pitch, Pant surface inspection

Features

  • #1 Square Plus Phillips Rec
  • 3/4 of the Thread Rolled
  • Trivalent Chromium White Zinc
  • Dehydrogenation

Specification

  • Item Specification: 6-20*2-3/4”
  • Item Material: 410SS