50x Black Nylon Countersunk Cross Machine Screws M4 x 20 mm, Nuts & Washers
A closer look.
SKU code 599
In stock
Price per packDelivery
Free UK delivery on every order
Faster paid options are shown at checkout.
Outside the UK: import charges paid by us, nothing to pay on delivery.
Delivery details
UK
- Free delivery Every UK order Free
- Faster options Shown at checkout, before you pay
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 5-10 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
- Tracked post or express courier - times shown 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
- Countersunk Cross Head Bolts
- Size (mm)
- M4 x 20mm
- Thread
- M4
- Material
- Nylon / Polyamide 66
- Colour
- Black
- Pack size
- 50
- 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.
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Dimensions & documents
- Product Safety InformationPDF document
- Nylon PA66 — Material DatasheetPDF document
- Nylon PA66 — Screws & Bolts DatasheetPDF document
- Technical drawingDrawing, image
Bolt, nut and washer dimensions
Bolt
Head/Drive Type: Cross Countersunk Head Bolt, size: M4 x 20, D: 4 mm, Pitch: 0.7 mm, L: 20 mm, HD: 8.22 mm, HH: 2.7 mm
Nut
Material: Polyamide66, Head/Drive Type: Hexagon Nut, size: M4, N (mm): M4, HN B: 6.89 mm, HN H: 3.05 mm
Washer
Material: Polyamide66, Head/Drive Type: Flat washer, size: M4, W0 A: 8.82 mm, W0 B: 4.39 mm, W0 T: 0.8 mm
Description
Features
- Pack of 50: M4 x 20 mm countersunk machine screws in black nylon PA66, with 50 nuts and 50 washers; product code 599
- Thread and head: metric thread with 0.7 mm pitch; countersunk head 8.2 mm across and 2.7 mm high
- Electrically insulating and non-magnetic: for fixings in electrical cabinets, control boxes and electronics enclosures
- Lightweight nylon that does not rust: resists most organic solvents, fuels, oils and weak bases
- Cross recess for a cross-head screwdriver; the countersunk head sits flush with the surface in a countersunk hole; also called cross-recessed countersunk screws, flat head screws or plastic screws
Product Summary
Pack of 50: M4 x 20 mm countersunk machine screws in black nylon PA66, with 50 nuts and 50 washers. Thread and head: metric thread with 0.7 mm pitch; countersunk head 8.2 mm across and 2.7 mm high. Electrically insulating and non-magnetic: for fixings in electrical cabinets, control boxes and electronics enclosures. Lightweight nylon that does not rust: resists most organic solvents, fuels, oils and weak bases. Nylon PA66 is strong and tough, with high tensile strength and good wear and impact resistance. Cross recess for a cross-head screwdriver. The countersunk head sits flush with the surface in a countersunk hole. Also called cross-recessed countersunk screws, flat head screws or plastic screws.
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50x Black Nylon Countersunk Cross Machine Screws M4 x 20 mm, Nuts & Washers
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