#4-40 Spanner Flat Head Tamper Proof Machine Screw 18/8 Stainless Steel

#4-40 Spanner Security Flat Head Machine Screws

Diameter - Thread Pitch: #4-40


#4-40 Stainless steel Spanner flat head machine screws in 18-8 stainless steel

  • Spanner (snake eye) drive style is uncommon creating a more secure fastener assembly
  • Commonly used in bathroom stalls or on public art displays
  • Rust and corrosion resistant
  • Suitable for external environments where fresh water is present
  • Scratching or burring the metal will not create surface rust as the metal itself is corrosion resistant, not just a coating

FREE BIT included with Purchase of 25 or more screws of the same size and length.

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Product Specifications
Brand
Albany County Fasteners
Center to Center
Ref. 0.094
Color
Silver
Corrosion Resistant
Yes
Diameter
#4
Drive Style
Spanner
Grade
18-8
Head Diameter
Max 0.225 - Min 0.195
Head Style
Flat
Material
Stainless Steel
Overall Head Height
Max 0.067 - Min 0.055
Product Type
Tamper Proof Machine Screws
Security Fastener
Yes
Spanner Drive
#4
System of Measurement (Unit)
Inch
Thread Diameter
(#4) Max 0.1112 - Min 0.1120
Thread Direction
Right Hand
Thread Pitch (Count)
40 Per Inch
Thread Standard
UNC
Thread Type
Coarse
Tolerance (IFI)
Actual measurements may vary slightly +/- depending on production run within IFI Tolerances