#4-40 Torx 6-Lobe Pan Head Machine Screw Black Oxide Stainless Steel

#4-40 Black Stainless Steel Torx Pan Head Machine Screws

Diameter - Thread Pitch: #4-40


#4-40 Black oxide Torx pan head machine screws are available in 18-8 stainless steel.

  • Torx (6 lobe) drive style can prevent accidental stripping during an installation
  • Torx grips the head better allowing for more torque on a screw
  • Torx drive styles have become widespread due to their efficiency
  • Black oxide screws are chemically altered to change qualities of the metal: Most noticeably the color
  • Treatment adds another level of corrosion and abrasion resistance to stainless steel
  • Black oxide finish is infused with wax or oil during the process to comply with military specifications as a Class 4 finish

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Product Specifications
Body Diameter
#4 (Max 0.1112 - Min 0.1061)
Color
Black
Corrosion Resistant
Yes
Diameter
#4
Drive Style
Torx
Finish
Black Oxide
Head Diameter
Max 0.219 - Min 0.205
Head Height Max
0.08
Head Style
Pan
Material
Black Oxide Stainless Steel 18-8
Overall Head Height
Max 0.080 - Min 0.070
Product Type
Machine Screws
Thread Direction
Right Hand
Thread Pitch (Count)
40
Thread Standard
UNC
Thread Type
Coarse
Tolerance (IFI)
Actual measurements may vary slightly +/- depending on production run within IFI Tolerances
Torx Drive
T10
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Size
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