Flat Head #1 Square | Wood Screw | Self Tapping Screw Manufacturer | Sen Chang

Flat Head Square Rec w/ Drilling Machine Thread | 45 years of experiences for production stainless steel fasteners.

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Flat Head #1 Square | Wood Screw | Self Tapping Screw Manufacturer | Sen Chang

Located in Taiwan since 1968, Sen Chang Industrial Co., Ltd. has been a manufacturer of screws, nuts and bolts with all head styles and thread types. It's main steel screws include, Flat Head #1 Square, stainless steel screws, wood screws, coated screws, self-tapping screws, machine screws, threaded screws, hex head screws, drywall screws, torx screws, pan head screws and wafer head screws, which are CE and ISO9001 certified with brass, stainless steel, copper and aluminum available.

With more than 48 years of manufacture all types of stainless steel industrial fasteners experience, specialized tapping screws, self-drilling screws, machine screws, stainless steel wires, etc. We are also capable of producing customized products. Sen Chang (SC) with more than 48 years of manufacture all types of stainless steel industrial fasteners experience, specialized tapping screws, self-drilling screws, machine screws, stainless steel wires, etc. We are also capable of producing customized products.

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

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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