Internal Serrate Washer | Superior Self-Tapping Screws for Metal and Wood

Internal Serrate Washer | Global suppliers of durable stainless steel pins

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Internal Serrate Washer | Corrosion-Resistant Coating Screws for Long-Lasting Performance

Sen Chang Industrial Co., Ltd., established in 1968, is a leading manufacturer of stainless steel industrial fasteners, including Internal Serrate Washer, screws, wires, pins, and rivets. With a focus on innovation and quality, Sen Chang adheres to ISO9001 standards to produce high-tensile screws and other fasteners that meet the highest industry standards. Our products are crafted with precision to cater to diverse industrial needs, ensuring superior strength and durability. Choose Sen Chang for reliable and high-quality stainless steel fasteners, designed to excel in demanding industrial applications.

Sen Chang's stainless steel wire rods are designed for optimal performance in cold-forming processes. The wires' superior quality and durability make them perfect for industrial applications, ensuring longevity and reliability in manufacturing.

Sen Chang has been supplying precision fastening solutions, both with advanced technology and 48 years of experience, Sen Chang ensures each customer's demands are met.

Internal Serrate Washer


Process: lazer cutting based on the size
All the items are inspected during the process and before shipping, complying with ISO Working Instruction
Inspection Tools: Calipers, 2.5D projector
Measurement Points: Washer diameter, Washer height, Inside diameter


  • Production Complying w/ JIS B 1255
  • Black Zinc Plated


  • Item Specification: M8*15
  • Item Material: 304 SS