50x Clear Acrylic Slotted Knurled Thumbscrews M8 x 40 mm, Nuts & Washers
A closer look.
SKU code 833
In stock
Price per packDelivery
Delivery to the USA & Canada, import duties paid by us
Tracked post 7-21 days or express courier 2-4 days. Price at checkout.
Nothing more to pay on delivery. No US sales tax.
Delivery details
UK
- Free delivery Every UK order Free
- Faster options Shown at checkout, before you pay at checkout
Also Isle of Man, Jersey and Guernsey, free delivery included.
Europe
- Tracked post 5-10 days at checkout
- Express courier 2-4 days at checkout
Import charges paid by us, at your country's VAT rate - nothing to pay on delivery.
USA & Canada
- Tracked post 7-21 days at checkout
- Express courier 2-4 days at checkout
USA: import duties and tariffs paid by us, no US sales tax. Canada: import duties and customs paid by us.
Rest of the world
- Express courier 5-10 days to most countries at checkout
Import charges paid by us. For large or special orders, request a quote.
Times count from dispatch; we dispatch on UK working days. Full delivery page
Check the fit. Technical specification
- Product type
- Thumbscrews
- Size (mm)
- M8 x 40mm
- Thread
- M8
- Material
- Acrylic / Polycarbonate
- Colour
- Clear
- Pack size
- 50
- Diameter
- 8.00 mm
- Length
- 40 mm
- Width
- 8 mm
- Thickness / depth
- 8 mm
- Pitch
- 1.25 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.
Dimensions & documents
- Product Safety InformationPDF document
- Polycarbonate (PC) — Material DatasheetPDF document
- Polycarbonate (PC) — Screws & Bolts DatasheetPDF document
- Technical drawingDrawing, image
Bolt, nut and washer dimensions
Bolt
Head/Drive Type: Slotted Knurled Thumbscrew, size: M8 x 40, D: 8 mm, Pitch: 1.25 mm, L: 40 mm, HD: 16.76 mm, HH: 9.62 mm
Nut
Material: Polycarbonate, Head/Drive Type: Hexagon Nut, size: M8, N (mm): M8, HN B: 12.87 mm, HN H: 6.62 mm
Washer
Material: Polycarbonate, Head/Drive Type: Flat washer, size: M8, W0 A: 15.78 mm, W0 B: 8.51 mm, W0 T: 1.6 mm
Description
Features
- 50x thumbscrews, 50x nuts, 50x washers. Colour: Clear. Material: Acrylic / PC. Type: Slotted knurled. Thread: M8. Length: 40mm. Diameter: 8mm. Pitch: 1.25mm. SKU: 833.
- The knurled design provides easy grip and quick hand-tightening without the need for additional tools.
- 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.
- Hand-adjustable knurled head with an additional slotted recess for screwdriver tightening. Also known as knurled screws, finger screws.
Product Summary
Clear acrylic / PC slotted knurled thumbscrews, nuts and washers provide transparent non-metal fastening. Easy installation and removal allow for straightforward adjustments where frequent changes are needed. 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.
Feedback from our customers
Every rating 4 or 5 starsAcross 1,797 reviews
Perfect quality nylon bolts that fixed an unfixable situation! Speedy delivery!
very quick delivery and excellent product, better than expected !!
these are very good quality and I have placed many repeat orders.
Well packed and prompt order processing, product is as advertised
The residents at the Veterans Home loved taking these apart and putting them back together. I bought more for them.
Very happy with the quality of the item and the speedy delivery
Smooth fitting and easy to cut for shorter lengths if required.
good quality, item as described , arrived imperfect condition.
Quick delivery, but had to use super glue to stick as the adhesive was not strong enough, but otherwise, great product.
Better than expected. Very well packaged (inside and out)
Great product! Adhesiveness is super strong and durable.
Arrived sooner than promised and was well packaged.
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