Indented Hex Washer Head | Superior Self-Tapping Screws for Metal and Wood

Indented Hex Washer Head With Slotted Recess Thread Rolling Screw | Global suppliers of durable stainless steel pins

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Indented Hex Washer Head | 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 Indented Hex Washer Head, 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.

Indented Hex Washer Head


Process: Using multi blow headers to make the head then threading before passivation
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: Across flat, Across corner, Head height, Washer diameter, Washer height, Slot width, Slot depth, Thread length, Diameter of Circumscribing, Circle Measurement, Across Center, Minor diameter, Thread angle, Pitch, Ring gage GO/NO GO


  • 305 SS
  • Indented Hex Washer Head
  • Slotted on the head
  • Thread Rolling Screw


  • Item Specification: 1/4-20*1
  • Item Material: 305 SS