A closer look.
Stock code 362
60x Clear Acrylic Slotted Knurled Thumbscrews M4 x 20 mm, Nuts & Washers
The details, at a glance.
- Thread M4
- Length 20 mm
- Material Acrylic / Polycarbonate
- Colour Clear
- Pack size 60
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Check the fit. Technical specification
- Product type
- Thumbscrews
- Size (mm)
- M4 x 20mm
- Thread
- M4
- Material
- Acrylic / Polycarbonate
- Colour
- Clear
- Pack size
- 60
- Diameter
- 4.00 mm
- Length
- 20 mm
- Width
- 4 mm
- Thickness / depth
- 4 mm
- Pitch
- 0.7 mm
Inch values are converted from millimetres. Fractions are approximate, rounded to the nearest 1/16 in. Thread diameter and pitch are not shown as fractions.
Bolt, nut and washer dimensions
Bolt
Head/Drive Type: Slotted Knurled Thumbscrew, size: M4 x 20, D: 4 mm, Pitch: 0.7 mm, L: 20 mm, HD: 9.77 mm, HH: 7.11 mm
Nut
Material: Polycarbonate, Head/Drive Type: Hexagon Nut, size: M4, N (mm): M4, HN B: 6.89 mm, HN H: 3.05 mm
Washer
Material: Polycarbonate, Head/Drive Type: Flat washer, size: M4, W0 A: 8.82 mm, W0 B: 4.39 mm, W0 T: 0.8 mm
Description
Features
- 60x thumbscrews, 60x nuts, 60x washers. Colour: Clear. Material: Acrylic / PC. Type: Slotted knurled. Thread: M4. Length: 20mm. Diameter: 4mm. Pitch: 0.7mm. SKU: 362.
- The ridges on knurled screws provide extra grip for hand-tightening and adjustment.
- Acrylic and polycarbonate are similar thermoplastics often used interchangeably; acrylic provides good strength and UV resistance, while polycarbonate offers higher impact and heat resistance.
- The clear material is lightweight and offers greater impact resistance than glass, making it useful where transparency is required.
- Straightforward manual adjustment, fastening or removal without tools. Operate the thumbscrews with thumb and forefinger, or use the slotted recess with a screwdriver. Also known as knurled screws, finger screws.
Product Summary
This pack contains 60 clear acrylic / PC slotted knurled thumbscrews, M4 x 20 mm, with matching nuts and washers. The knurled head provides extra grip for hand-tightening, while the slotted recess allows screwdriver adjustment. Acrylic and polycarbonate are similar thermoplastics often used interchangeably; acrylic provides good strength and UV resistance, while polycarbonate offers higher impact and heat resistance. These clear fasteners are lightweight and moisture-resistant, with greater impact resistance than glass. Thumbscrews are also known as knurled screws or hand-tightening screws.
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60x Clear Acrylic Slotted Knurled Thumbscrews M4 x 20 mm, Nuts & Washers
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