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Machine Screws, Slotted Round Head, Brass, #4-40

Machine Screws, Slotted Round Head, Brass, #4-40

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

Select Products Below See Product Specifications
NA = "Not Sold In Single Quantity"

Size/SKU
Select Package Quantity Price
SubTotal
#4-40 x 1/8"
SKU #1019-10002-0002
#4-40 x 1/8"
SKU #1019-10002-0002
1 $0.09 (0.09/ea)
100 $6.00 (0.06/ea)
1000 $50.00 (0.05/ea)
Subtotal: $0.00 /
#4-40 x 3/16"
SKU #1019-10002-0012
#4-40 x 3/16"
SKU #1019-10002-0012
1 $0.09 (0.09/ea)
100 $6.00 (0.06/ea)
1000 $50.00 (0.05/ea)
Subtotal: $0.00 /
#4-40 x 1/4"
SKU #1019-10002-0022
#4-40 x 1/4"
SKU #1019-10002-0022
1 $0.09 (0.09/ea)
100 $6.00 (0.06/ea)
1000 $50.00 (0.05/ea)
Subtotal: $0.00 /
#4-40 x 3/8"
SKU #1019-10002-0050
#4-40 x 3/8"
SKU #1019-10002-0050
1 $0.11 (0.11/ea)
100 $7.00 (0.07/ea)
1000 $60.00 (0.06/ea)
Subtotal: $0.00 /
#4-40 x 7/16"
SKU #1019-10002-0060
#4-40 x 7/16"
SKU #1019-10002-0060
1 $0.12 (0.12/ea)
100 $10.00 (0.1/ea)
1000 $90.00 (0.09/ea)
Subtotal: $0.00 /
#4-40 x 1/2"
SKU #1019-10002-0070
#4-40 x 1/2"
SKU #1019-10002-0070
1 $0.12 (0.12/ea)
100 $7.00 (0.07/ea)
1000 $60.00 (0.06/ea)
Subtotal: $0.00 /
#4-40 x 5/8"
SKU #1019-10002-0080
#4-40 x 5/8"
SKU #1019-10002-0080
1 $0.15 (0.15/ea)
100 $8.00 (0.08/ea)
1000 $70.00 (0.07/ea)
Subtotal: $0.00 /
#4-40 x 3/4"
SKU #1019-10002-0090
#4-40 x 3/4"
SKU #1019-10002-0090
1 $0.16 (0.16/ea)
100 $9.00 (0.09/ea)
1000 $80.00 (0.08/ea)
Subtotal: $0.00 /
#4-40 x 1"
SKU #1019-10002-0110
1 $0.22 (0.22/ea)
100 $12.00 (0.12/ea)
1000 $110.00 (0.11/ea)
Subtotal: $0.00 /
#4-40 x 1-1/4"
SKU #1019-10002-0120
#4-40 x 1-1/4"
SKU #1019-10002-0120
1 $0.23 (0.23/ea)
100 $13.00 (0.13/ea)
1000 $120.00 (0.12/ea)
Subtotal: $0.00 /
#4-40 x 1-1/2"
SKU #1019-10002-0130
#4-40 x 1-1/2"
SKU #1019-10002-0130
1 $0.26 (0.26/ea)
100 $14.00 (0.14/ea)
1000 $130.00 (0.13/ea)
Subtotal: $0.00 /
#4-40 x 1-3/4"
SKU #1019-10002-0140
#4-40 x 1-3/4"
SKU #1019-10002-0140
1 $0.28 (0.28/ea)
100 $23.00 (0.23/ea)
1000 $210.00 (0.21/ea)
Subtotal: $0.00 /
#4-40 x 2"
SKU #1019-10002-0150
1 $0.34 (0.34/ea)
100 $22.00 (0.22/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 $0.09 (0.09/ea)
100 $6.00 (0.06/ea)
1000 $50.00 (0.05/ea)
Subtotal: $0.00
Flat Washers, Brass, #4 (.120 ID x .281 OD x .025 Thick)
Flat Washers, Brass, #4 (.120 ID x .281 OD x .025 Thick) 4000022
Flat Washers, Brass, #4 (.120 ID x .281 OD x .025 Thick)
1 $0.07 (0.07/ea)
100 $3.00 (0.03/ea)
1000 $20.00 (0.02/ea)
Subtotal: $0.00
Lock Washers, Split Ring, Silicon Bronze, #4 (.114 x .209 x .025)
Lock Washers, Split Ring, Silicon Bronze, #4 (.114 x .209 x .025) 1102-129-0002
Lock Washers, Split Ring, Silicon Bronze, #4 (.114 x .209 x .025)
1 $0.08 (0.08/ea)
100 $5.00 (0.05/ea)
1000 $40.00 (0.04/ea)
Subtotal: $0.00
Product Specifications
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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