#4-40 Brass Slotted Round Head Machine Screws
Diameter - Thread Pitch: #4-40
- Slotted drive style designed to be driven by a flat head or slotted screwdriver or bit
- ASME standards specific
- Used with a tapped hole or nut
- Conducts electricity and heat
- A machine screw is commonly identified by its small size
- Brass is an alloy made of copper and zinc
- Color can vary from dark to light based upon the zinc content
- Prized for its corrosion resistance but is a very soft metal
- Commonly used for:
- Pipes
- Weather Stripping
- Trim
- Radiators
- Musical Instruments
- Firearms
#4-40 Slotted round head machine screws are available in corrosion resistant brass.
NOTE: Color and sheen may vary
See Product Specifications
NA = "Not Sold In Single Quantity"
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Product Specifications
ANSI
B18.6.3
Color
Yellow
Color May Vary
Color and sheen may vary
Corrosion Resistant
Yes
Drive Style
Slotted
Elongation
10% - 25%
Fit
Class 2A
Hardness
40-75 Rockwell B
Head Diameter
Max 0.211 - Min 0.193
Head Style
Round
Material
Brass
Overall Head Height
Max 0.086 - Min 0.075
Product Type
Slotted Round Head Machine Screw
Standards Met
ASME, ANSI B18.6.3
System of Measurement (Unit)
Inch
Tensile PSI
50,000 - 65,000 PSI
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
Yield PSI
30,000 - 50,000 PSI
