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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"

M3.0x0.5 Plain Thumb Screws

8mm

Part Number Material Head Diameter Head Length Male Thread Thread Length Details
BR5465 Brass 8mm 5mm M3.0x0.5 8mm
  • Material: Brass
  • Head Diameter: 8mm
  • Head Length: 5mm
  • Male Thread: M3.0x0.5
  • Thread Length: 8mm

9mm

Part Number Material Head Diameter Head Length Male Thread Thread Length Details
BR5466 Brass 8mm 5mm M3.0x0.5 9mm
  • Material: Brass
  • Head Diameter: 8mm
  • Head Length: 5mm
  • Male Thread: M3.0x0.5
  • Thread Length: 9mm

11mm

Part Number Material Head Diameter Head Length Male Thread Thread Length Details
BR5467 Brass 8mm 5mm M3.0x0.5 11mm
  • Material: Brass
  • Head Diameter: 8mm
  • Head Length: 5mm
  • Male Thread: M3.0x0.5
  • Thread Length: 11mm

13mm

Part Number Material Head Diameter Head Length Male Thread Thread Length Details
BR5468 Brass 8mm 5mm M3.0x0.5 13mm
  • Material: Brass
  • Head Diameter: 8mm
  • Head Length: 5mm
  • Male Thread: M3.0x0.5
  • Thread Length: 13mm

M3.5x0.6 Plain Thumb Screws

8mm

Part Number Material Head Diameter Head Length Male Thread Thread Length Details
BR5469 Brass 8mm 5mm M3.5x0.6 8mm
  • Material: Brass
  • Head Diameter: 8mm
  • Head Length: 5mm
  • Male Thread: M3.5x0.6
  • Thread Length: 8mm

9mm

Part Number Material Head Diameter Head Length Male Thread Thread Length Details
BR5470 Brass 8mm 5mm M3.5x0.6 9mm
  • Material: Brass
  • Head Diameter: 8mm
  • Head Length: 5mm
  • Male Thread: M3.5x0.6
  • Thread Length: 9mm

11mm

Part Number Material Head Diameter Head Length Male Thread Thread Length Details
BR5471 Brass 8mm 5mm M3.5x0.6 11mm
  • Material: Brass
  • Head Diameter: 8mm
  • Head Length: 5mm
  • Male Thread: M3.5x0.6
  • Thread Length: 11mm

13mm

Part Number Material Head Diameter Head Length Male Thread Thread Length Details
BR5472 Brass 8mm 5mm M3.5x0.6 13mm
  • Material: Brass
  • Head Diameter: 8mm
  • Head Length: 5mm
  • Male Thread: M3.5x0.6
  • Thread Length: 13mm

M4.0x0.7 Plain Thumb Screws

9mm

Part Number Material Head Diameter Head Length Male Thread Thread Length Details
BR5473 Brass 10mm 5mm M4.0x0.7 9mm
  • Material: Brass
  • Head Diameter: 10mm
  • Head Length: 5mm
  • Male Thread: M4.0x0.7
  • Thread Length: 9mm

11mm

Part Number Material Head Diameter Head Length Male Thread Thread Length Details
BR5474 Brass 10mm 5mm M4.0x0.7 11mm
  • Material: Brass
  • Head Diameter: 10mm
  • Head Length: 5mm
  • Male Thread: M4.0x0.7
  • Thread Length: 11mm

13mm

Part Number Material Head Diameter Head Length Male Thread Thread Length Details
BR5475 Brass 10mm 5mm M4.0x0.7 13mm
  • Material: Brass
  • Head Diameter: 10mm
  • Head Length: 5mm
  • Male Thread: M4.0x0.7
  • Thread Length: 13mm

14.0mm

Part Number Material Head Diameter Head Length Male Thread Thread Length Details
BR5476 Brass 10mm 5mm M4.0x0.7 14.0mm
  • Material: Brass
  • Head Diameter: 10mm
  • Head Length: 5mm
  • Male Thread: M4.0x0.7
  • Thread Length: 14.0mm

16mm

Part Number Material Head Diameter Head Length Male Thread Thread Length Details
BR5477 Brass 10mm 5mm M4.0x0.7 16mm
  • Material: Brass
  • Head Diameter: 10mm
  • Head Length: 5mm
  • Male Thread: M4.0x0.7
  • Thread Length: 16mm

M5.0x0.8 Plain Thumb Screws

9mm

Part Number Material Head Diameter Head Length Male Thread Thread Length Details
BR5478 Brass 11mm 5mm M5.0x0.8 9mm
  • Material: Brass
  • Head Diameter: 11mm
  • Head Length: 5mm
  • Male Thread: M5.0x0.8
  • Thread Length: 9mm

11mm

Part Number Material Head Diameter Head Length Male Thread Thread Length Details
BR5479 Brass 11mm 5mm M5.0x0.8 11mm
  • Material: Brass
  • Head Diameter: 11mm
  • Head Length: 5mm
  • Male Thread: M5.0x0.8
  • Thread Length: 11mm

13mm

Part Number Material Head Diameter Head Length Male Thread Thread Length Details
BR5480 Brass 11mm 5mm M5.0x0.8 13mm
  • Material: Brass
  • Head Diameter: 11mm
  • Head Length: 5mm
  • Male Thread: M5.0x0.8
  • Thread Length: 13mm

14.0mm

Part Number Material Head Diameter Head Length Male Thread Thread Length Details
BR5481 Brass 11mm 5mm M5.0x0.8 14.0mm
  • Material: Brass
  • Head Diameter: 11mm
  • Head Length: 5mm
  • Male Thread: M5.0x0.8
  • Thread Length: 14.0mm

16mm

Part Number Material Head Diameter Head Length Male Thread Thread Length Details
BR5482 Brass 11mm 5mm M5.0x0.8 16mm
  • Material: Brass
  • Head Diameter: 11mm
  • Head Length: 5mm
  • Male Thread: M5.0x0.8
  • Thread Length: 16mm

M6.0x1.0 Plain Thumb Screws

13mm

Part Number Material Head Diameter Head Length Male Thread Thread Length Details
BR5483 Brass 13mm 6mm M6.0x1.0 13mm
  • Material: Brass
  • Head Diameter: 13mm
  • Head Length: 6mm
  • Male Thread: M6.0x1.0
  • Thread Length: 13mm

14.0mm

Part Number Material Head Diameter Head Length Male Thread Thread Length Details
BR5484 Brass 13mm 6mm M6.0x1.0 14.0mm
  • Material: Brass
  • Head Diameter: 13mm
  • Head Length: 6mm
  • Male Thread: M6.0x1.0
  • Thread Length: 14.0mm

16mm

Part Number Material Head Diameter Head Length Male Thread Thread Length Details
BR5485 Brass 13mm 6mm M6.0x1.0 16mm
  • Material: Brass
  • Head Diameter: 13mm
  • Head Length: 6mm
  • Male Thread: M6.0x1.0
  • Thread Length: 16mm

18.0mm

Part Number Material Head Diameter Head Length Male Thread Thread Length Details
BR5486 Brass 13mm 6mm M6.0x1.0 18.0mm
  • Material: Brass
  • Head Diameter: 13mm
  • Head Length: 6mm
  • Male Thread: M6.0x1.0
  • Thread Length: 18.0mm

19mm

Part Number Material Head Diameter Head Length Male Thread Thread Length Details
BR5487 Brass 13mm 6mm M6.0x1.0 19mm
  • Material: Brass
  • Head Diameter: 13mm
  • Head Length: 6mm
  • Male Thread: M6.0x1.0
  • Thread Length: 19mm