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#4-40 Slotted Round Head Machine Screw Solid Brass

#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

This item qualifies for FREE SHIPPING on orders $250+
Select Products Below See Product Specifications
NA = "Not Sold In Single Quantity"

Size
Select Package Quantity
SubTotal
Slotted Round Head Machine Screw Solid Brass - #4-40 x 1/8"
SKU #1019-10002-0002
Slotted Round Head Machine Screw Solid Brass - #4-40 x 1/8"
SKU #1019-10002-0002
1
 NA
25
 $4.00 (0.16/ea)
100
 $7.00 (0.07/ea)
1000
 $60.00 (0.06/ea)
Subtotal: $0.00 /
Slotted Round Head Machine Screw Solid Brass - #4-40 x 3/16"
SKU #1019-10002-0012
Slotted Round Head Machine Screw Solid Brass - #4-40 x 3/16"
SKU #1019-10002-0012
1
 NA
25
 $3.75 (0.15/ea)
100
 $7.00 (0.07/ea)
1000
 $60.00 (0.06/ea)
Subtotal: $0.00 /
Slotted Round Head Machine Screw Solid Brass - #4-40 x 1/4"
SKU #1019-10002-0022
Slotted Round Head Machine Screw Solid Brass - #4-40 x 1/4"
SKU #1019-10002-0022
1
 NA
25
 $3.75 (0.15/ea)
100
 $7.00 (0.07/ea)
1000
 $60.00 (0.06/ea)
Subtotal: $0.00 /
Slotted Round Head Machine Screw Solid Brass - #4-40 x 3/8"
SKU #1019-10002-0050
Slotted Round Head Machine Screw Solid Brass - #4-40 x 3/8"
SKU #1019-10002-0050
1
 NA
25
 $2.00 (0.08/ea)
100
 $7.00 (0.07/ea)
1000
 $70.00 (0.07/ea)
Subtotal: $0.00 /
Slotted Round Head Machine Screw Solid Brass - #4-40 x 7/16"
SKU #1019-10002-0060
Slotted Round Head Machine Screw Solid Brass - #4-40 x 7/16"
SKU #1019-10002-0060
1
 NA
25
 $5.75 (0.23/ea)
100
 $17.00 (0.17/ea)
1000
 $150.00 (0.15/ea)
Subtotal: $0.00 /
Slotted Round Head Machine Screw Solid Brass - #4-40 x 1/2"
SKU #1019-10002-0070
Slotted Round Head Machine Screw Solid Brass - #4-40 x 1/2"
SKU #1019-10002-0070
1
 NA
25
 $4.00 (0.16/ea)
100
 $8.00 (0.08/ea)
1000
 $70.00 (0.07/ea)
Subtotal: $0.00 /
Slotted Round Head Machine Screw Solid Brass - #4-40 x 5/8"
SKU #1019-10002-0080
Slotted Round Head Machine Screw Solid Brass - #4-40 x 5/8"
SKU #1019-10002-0080
1
 NA
25
 $4.25 (0.17/ea)
100
 $9.00 (0.09/ea)
1000
 $80.00 (0.08/ea)
Subtotal: $0.00 /
Slotted Round Head Machine Screw Solid Brass - #4-40 x 3/4"
SKU #1019-10002-0090
Slotted Round Head Machine Screw Solid Brass - #4-40 x 3/4"
SKU #1019-10002-0090
1
 NA
25
 $4.25 (0.17/ea)
100
 $9.00 (0.09/ea)
1000
 $80.00 (0.08/ea)
Subtotal: $0.00 /
Slotted Round Head Machine Screw Solid Brass - #4-40 x 1"
SKU #1019-10002-0110
Slotted Round Head Machine Screw Solid Brass - #4-40 x 1"
SKU #1019-10002-0110
1
 NA
25
 $5.00 (0.2/ea)
100
 $13.00 (0.13/ea)
1000
 $120.00 (0.12/ea)
Subtotal: $0.00 /
Slotted Round Head Machine Screw Solid Brass - #4-40 x 1-1/4"
SKU #1019-10002-0120
Slotted Round Head Machine Screw Solid Brass - #4-40 x 1-1/4"
SKU #1019-10002-0120
1
 NA
25
 $7.50 (0.3/ea)
100
 $14.00 (0.14/ea)
1000
 $130.00 (0.13/ea)
Subtotal: $0.00 /
Slotted Round Head Machine Screw Solid Brass - #4-40 x 1-1/2"
SKU #1019-10002-0130
Slotted Round Head Machine Screw Solid Brass - #4-40 x 1-1/2"
SKU #1019-10002-0130
1
 NA
25
 $7.75 (0.31/ea)
100
 $16.00 (0.16/ea)
1000
 $140.00 (0.14/ea)
Subtotal: $0.00 /
Slotted Round Head Machine Screw Solid Brass - #4-40 x 1-3/4"
SKU #1019-10002-0140
Slotted Round Head Machine Screw Solid Brass - #4-40 x 1-3/4"
SKU #1019-10002-0140
1
 NA
25
 $8.25 (0.33/ea)
100
 $30.00 (0.3/ea)
1000
 $290.00 (0.29/ea)
Subtotal: $0.00 /
Slotted Round Head Machine Screw Solid Brass - #4-40 x 2"
SKU #1019-10002-0150
Slotted Round Head Machine Screw Solid Brass - #4-40 x 2"
SKU #1019-10002-0150
1
 NA
25
 $11.00 (0.44/ea)
100
 $23.00 (0.23/ea)
1000
 $210.00 (0.21/ea)
Subtotal: $0.00 /

Frequently Used With

Hex Machine Nuts Brass - #4-40 (Flats 1/4" x Thick 7/64")
Hex Machine Nuts Brass - #4-40 (Flats 1/4" x Thick 7/64") 220012
Hex Machine Nuts Brass - #4-40 (Flats 1/4
1
 NA
25
 $2.00 (0.08/ea)
100
 $5.00 (0.05/ea)
1000
 $40.00 (0.04/ea)
Subtotal: $0.00 /
Brass Flat Washer - #4 (.120 ID x .281 OD x .025 Thick)
Brass Flat Washer - #4 (.120 ID x .281 OD x .025 Thick) 4000022
Brass Flat Washer - #4 (.120 ID x .281 OD x .025 Thick)
1
 NA
25
 $2.50 (0.1/ea)
100
 $3.00 (0.03/ea)
1000
 $20.00 (0.02/ea)
Subtotal: $0.00 /
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

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