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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
SS7620 Stainless Steel 5/16" 3/16" #4-40 5/16"
  • Material: Stainless Steel
  • 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
SS7621 Stainless Steel 5/16" 3/16" #4-40 3/8"
  • Material: Stainless Steel
  • 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
SS7622 Stainless Steel 5/16" 3/16" #4-40 7/16"
  • Material: Stainless Steel
  • 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
SS7623 Stainless Steel 5/16" 3/16" #4-40 1/2"
  • Material: Stainless Steel
  • 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
SS7624 Stainless Steel 5/16" 3/16" #6-32 5/16"
  • Material: Stainless Steel
  • 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
SS7625 Stainless Steel 5/16" 3/16" #6-32 3/8"
  • Material: Stainless Steel
  • 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
SS7626 Stainless Steel 5/16" 3/16" #6-32 7/16"
  • Material: Stainless Steel
  • 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
SS7627 Stainless Steel 5/16" 3/16" #6-32 1/2"
  • Material: Stainless Steel
  • 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
SS7628 Stainless Steel 3/8" 3/16" #8-32 3/8"
  • Material: Stainless Steel
  • 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
SS7629 Stainless Steel 3/8" 3/16" #8-32 7/16"
  • Material: Stainless Steel
  • 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
SS7630 Stainless Steel 3/8" 3/16" #8-32 1/2"
  • Material: Stainless Steel
  • 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
SS7631 Stainless Steel 3/8" 3/16" #8-32 9/16"
  • Material: Stainless Steel
  • 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
SS7632 Stainless Steel 3/8" 3/16" #8-32 5/8"
  • Material: Stainless Steel
  • 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
SS7633 Stainless Steel 7/16" 3/16" #10-32 3/8"
  • Material: Stainless Steel
  • 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
SS7634 Stainless Steel 7/16" 3/16" #10-32 7/16"
  • Material: Stainless Steel
  • 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
SS7635 Stainless Steel 7/16" 3/16" #10-32 1/2"
  • Material: Stainless Steel
  • 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
SS7636 Stainless Steel 7/16" 3/16" #10-32 9/16"
  • Material: Stainless Steel
  • 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
SS7637 Stainless Steel 7/16" 3/16" #10-32 5/8"
  • Material: Stainless Steel
  • 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
SS7638 Stainless Steel 1/2" 1/4" #1/4-20 1/2"
  • Material: Stainless Steel
  • 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
SS7639 Stainless Steel 1/2" 1/4" #1/4-20 9/16"
  • Material: Stainless Steel
  • 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
SS7640 Stainless Steel 1/2" 1/4" #1/4-20 5/8"
  • Material: Stainless Steel
  • 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
SS7641 Stainless Steel 1/2" 1/4" #1/4-20 11/16"
  • Material: Stainless Steel
  • 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
SS7642 Stainless Steel 1/2" 1/4" #1/4-20 3/4"
  • Material: Stainless Steel
  • Head Diameter: 1/2"
  • Head Length: 1/4"
  • Male Thread: #1/4-20
  • Thread Length: 3/4"