#4-40 Black Stainless Steel Phillips Flat Head Machine Screws

Diameter - Thread Pitch: #4-40

#4-40 Black oxide Phillips flat head machine screws in black oxide stainless steel.

Black oxide finish adds an extra layer of corrosion and abrasion resistance to stainless steel
Commonly used for its sleek black look
Chemically treated with a layer of wax or oil
Commonly used for:
- Tattoo Guns
- Black Tools
- Cars
- Motorcycles

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