Indented Chamfered Hex Washer Head Bolt | High-tensile stainless steel fasteners for industrial use | Sen Chang

Indented Chamfered Hex Washer Head Bolt w/ High Tensile Strength | Premium Stainless Steel Wires for Industrial Use | Sen Chang

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Indented Chamfered Hex Washer Head Bolt | Durable stainless steel pins and rivets wholesale | Sen Chang

Located in Taiwan since 1968, Sen Chang Industrial Co., Ltd. has specialized in manufacturing a diverse range of screws, nuts, and bolts, including Indented Chamfered Hex Washer Head Bolt, stainless steel, wood, and coated screws. Our products, such as self-tapping, machine, and hex head screws, are not only versatile but also CE and ISO9001 certified. We offer materials like brass, stainless steel, copper, and aluminum to meet various industrial needs. Our commitment to quality and innovation sets us apart in the fastener industry.

SEN CHANG, with over 45 years in the fastener industry, specializes in high-tensile strength stainless steel fasteners. Renowned for their diverse range of industrial screws, rivets, and custom hardware, they ensure top-quality through rigorous testing. Catering to specialized sectors, including baby care and thermometer manufacturing, SEN CHANG is the go-to source for durable, precision-engineered fastening solutions. Their commitment to innovation and quality makes them a trusted partner in the industry.

Sen Chang has been supplying custom stainless steel fasteners to customers, both with advanced technology and 48 years of experience, Sen Chang ensures each customer's demands are met.

Indented Chamfered Hex Washer Head Bolt


Process: Using multi blow header for head formation before threading, and then acid washing
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, Across the flat and corner of the hex, Washer diameter, Washer height, Thread length, Major diameter, Minor diameter, Thread angle, Pitch, Ring gage GO/NO GO


  • A4-80kgf/mm2
  • Bearing Value: 10.9KN


  • Item Specification: M6*30
  • Item Material: 302HQ