CM008-151131-1 | Advanced Industrial Fasteners Manufacturer | Over 30 Years of Excellence

Flat Head Square Rec w/ Drilling Machine Thread | reliable stainless steel and high-tensile fasteners for industrial projects

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Flat Head #1 Square | Sen Chang: Your Source for Durable Industrial Fasteners & Screws

Sen Chang offers a vast selection of industrial fasteners and screws, meticulously crafted to meet the highest standards of quality and performance. Our product range includes Flat Head #1 Square , stainless steel screws, high-tensile fasteners, and other specialized fastening solutions designed to provide exceptional strength, durability, and corrosion resistance. Whether you’re working on construction, automotive, or industrial machinery projects, our fasteners ensure reliable and long-lasting connections.

With decades of experience in the industry, Sen Chang has become a trusted name for precision fastening solutions. Our commitment to innovation and quality means that our products are not only reliable but also tailored to meet the specific needs of our clients. From heavy-duty applications to intricate assemblies, you can count on Sen Chang’s fasteners to deliver superior results, every time.

At Sen Chang, we have been delivering precision fastening solutions with advanced technology and over 48 years of industry expertise. We are committed to meeting and exceeding each customer's unique demands, ensuring quality and reliability in every product.

Flat Head #1 Square - Flat Head Square Rec w/ Drilling Machine Thread
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Flat Head #1 Square

CM008-151131-1

Process: Using multi blow header to make the head and then threading before passivation. Acid washing after heat treating. At last plating and beeswaxing
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, Total length, Major diameter, Minor diameter, Thread angle, Pitch, Drilling tail diameter, Drilling tail length, Plating inspection
Plating Reports Offered

Features

  • Drilling Machine Thread
  • Black Zinc Plated w/ Thickness being 3u
  • Surface Beeswaxing

Specification

  • Item Specification: M4*11
  • Item Material: 410SS
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    Process: Using multi blow headers to make the head, to thread, and then slot 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: Head diameter, Head height, Phillips depth, Phillips plug gauge, Thread length, Thread angle, Pitch, Diameter of Circumscribing, Circle Measurement, Length of point, Angle of point.