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Plain Thumb Screws

Thumb Screws come in all common threads with a variety of thread lengths. The high quality knurl allows for an easy grip to hand tighten these screws into place, but have also been used for their decorative and unique appearance.

#4-40 Plain Thumb Screws

5/16"

Part Number Material Head Diameter Head Length Male Thread Thread Length Details
BR7620 Brass 5/16" 3/16" #4-40 5/16"
  • Material: Brass
  • Head Diameter: 5/16"
  • Head Length: 3/16"
  • Male Thread: #4-40
  • Thread Length: 5/16"

3/8"

Part Number Material Head Diameter Head Length Male Thread Thread Length Details
BR7621 Brass 5/16" 3/16" #4-40 3/8"
  • Material: Brass
  • Head Diameter: 5/16"
  • Head Length: 3/16"
  • Male Thread: #4-40
  • Thread Length: 3/8"

7/16"

Part Number Material Head Diameter Head Length Male Thread Thread Length Details
BR7622 Brass 5/16" 3/16" #4-40 7/16"
  • Material: Brass
  • Head Diameter: 5/16"
  • Head Length: 3/16"
  • Male Thread: #4-40
  • Thread Length: 7/16"

1/2"

Part Number Material Head Diameter Head Length Male Thread Thread Length Details
BR7623 Brass 5/16" 3/16" #4-40 1/2"
  • Material: Brass
  • Head Diameter: 5/16"
  • Head Length: 3/16"
  • Male Thread: #4-40
  • Thread Length: 1/2"

#6-32 Plain Thumb Screws

5/16"

Part Number Material Head Diameter Head Length Male Thread Thread Length Details
BR7624 Brass 5/16" 3/16" #6-32 5/16"
  • Material: Brass
  • Head Diameter: 5/16"
  • Head Length: 3/16"
  • Male Thread: #6-32
  • Thread Length: 5/16"

3/8"

Part Number Material Head Diameter Head Length Male Thread Thread Length Details
BR7625 Brass 5/16" 3/16" #6-32 3/8"
  • Material: Brass
  • Head Diameter: 5/16"
  • Head Length: 3/16"
  • Male Thread: #6-32
  • Thread Length: 3/8"

7/16"

Part Number Material Head Diameter Head Length Male Thread Thread Length Details
BR7626 Brass 5/16" 3/16" #6-32 7/16"
  • Material: Brass
  • Head Diameter: 5/16"
  • Head Length: 3/16"
  • Male Thread: #6-32
  • Thread Length: 7/16"

1/2"

Part Number Material Head Diameter Head Length Male Thread Thread Length Details
BR7627 Brass 5/16" 3/16" #6-32 1/2"
  • Material: Brass
  • Head Diameter: 5/16"
  • Head Length: 3/16"
  • Male Thread: #6-32
  • Thread Length: 1/2"

#8-32 Plain Thumb Screws

3/8"

Part Number Material Head Diameter Head Length Male Thread Thread Length Details
BR7628 Brass 3/8" 3/16" #8-32 3/8"
  • Material: Brass
  • Head Diameter: 3/8"
  • Head Length: 3/16"
  • Male Thread: #8-32
  • Thread Length: 3/8"

7/16"

Part Number Material Head Diameter Head Length Male Thread Thread Length Details
BR7629 Brass 3/8" 3/16" #8-32 7/16"
  • Material: Brass
  • Head Diameter: 3/8"
  • Head Length: 3/16"
  • Male Thread: #8-32
  • Thread Length: 7/16"

1/2"

Part Number Material Head Diameter Head Length Male Thread Thread Length Details
BR7630 Brass 3/8" 3/16" #8-32 1/2"
  • Material: Brass
  • Head Diameter: 3/8"
  • Head Length: 3/16"
  • Male Thread: #8-32
  • Thread Length: 1/2"

9/16"

Part Number Material Head Diameter Head Length Male Thread Thread Length Details
BR7631 Brass 3/8" 3/16" #8-32 9/16"
  • Material: Brass
  • Head Diameter: 3/8"
  • Head Length: 3/16"
  • Male Thread: #8-32
  • Thread Length: 9/16"

5/8"

Part Number Material Head Diameter Head Length Male Thread Thread Length Details
BR7632 Brass 3/8" 3/16" #8-32 5/8"
  • Material: Brass
  • Head Diameter: 3/8"
  • Head Length: 3/16"
  • Male Thread: #8-32
  • Thread Length: 5/8"

#10-32 Plain Thumb Screws

3/8"

Part Number Material Head Diameter Head Length Male Thread Thread Length Details
BR7633 Brass 7/16" 3/16" #10-32 3/8"
  • Material: Brass
  • Head Diameter: 7/16"
  • Head Length: 3/16"
  • Male Thread: #10-32
  • Thread Length: 3/8"

7/16"

Part Number Material Head Diameter Head Length Male Thread Thread Length Details
BR7634 Brass 7/16" 3/16" #10-32 7/16"
  • Material: Brass
  • Head Diameter: 7/16"
  • Head Length: 3/16"
  • Male Thread: #10-32
  • Thread Length: 7/16"

1/2"

Part Number Material Head Diameter Head Length Male Thread Thread Length Details
BR7635 Brass 7/16" 3/16" #10-32 1/2"
  • Material: Brass
  • Head Diameter: 7/16"
  • Head Length: 3/16"
  • Male Thread: #10-32
  • Thread Length: 1/2"

9/16"

Part Number Material Head Diameter Head Length Male Thread Thread Length Details
BR7636 Brass 7/16" 3/16" #10-32 9/16"
  • Material: Brass
  • Head Diameter: 7/16"
  • Head Length: 3/16"
  • Male Thread: #10-32
  • Thread Length: 9/16"

5/8"

Part Number Material Head Diameter Head Length Male Thread Thread Length Details
BR7637 Brass 7/16" 3/16" #10-32 5/8"
  • Material: Brass
  • Head Diameter: 7/16"
  • Head Length: 3/16"
  • Male Thread: #10-32
  • Thread Length: 5/8"

#1/4-20 Plain Thumb Screws

1/2"

Part Number Material Head Diameter Head Length Male Thread Thread Length Details
BR7638 Brass 1/2" 1/4" #1/4-20 1/2"
  • Material: Brass
  • Head Diameter: 1/2"
  • Head Length: 1/4"
  • Male Thread: #1/4-20
  • Thread Length: 1/2"

9/16"

Part Number Material Head Diameter Head Length Male Thread Thread Length Details
BR7639 Brass 1/2" 1/4" #1/4-20 9/16"
  • Material: Brass
  • Head Diameter: 1/2"
  • Head Length: 1/4"
  • Male Thread: #1/4-20
  • Thread Length: 9/16"

5/8"

Part Number Material Head Diameter Head Length Male Thread Thread Length Details
BR7640 Brass 1/2" 1/4" #1/4-20 5/8"
  • Material: Brass
  • Head Diameter: 1/2"
  • Head Length: 1/4"
  • Male Thread: #1/4-20
  • Thread Length: 5/8"

11/16"

Part Number Material Head Diameter Head Length Male Thread Thread Length Details
BR7641 Brass 1/2" 1/4" #1/4-20 11/16"
  • Material: Brass
  • Head Diameter: 1/2"
  • Head Length: 1/4"
  • Male Thread: #1/4-20
  • Thread Length: 11/16"

3/4"

Part Number Material Head Diameter Head Length Male Thread Thread Length Details
BR7642 Brass 1/2" 1/4" #1/4-20 3/4"
  • Material: Brass
  • Head Diameter: 1/2"
  • Head Length: 1/4"
  • Male Thread: #1/4-20
  • Thread Length: 3/4"