50x Black Nylon Socket Head Machine Screws M4 x 20 mm, Nuts & Washers
A closer look.
SKU code 514
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
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
- 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
- Socket Head Bolts
- Size (mm)
- M4 x 20mm
- Thread
- M4
- Material
- Nylon / Polyamide 66
- Colour
- Black
- Pack size
- 50
- 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.
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: Socket Hex Head Bolt, size: M4 x 20, D: 4 mm, Pitch: 0.7 mm, L: 20 mm, HD: 7 mm, HH: 3.91 mm, HS: 3.05 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
- 50x Bolts, 50x Nuts, 50x Washers. Pantone 3C Black. Material: PA 66 / Nylon. Type: Socket Head Bolts. Length: 20mm. Diameter: 4mm. Pitch: 0.7mm. Head diameter: 7mm. Head height: 3.9mm. Hex key: 3mm. SKU: 514.
- Made from tough, lightweight nylon, these fasteners offer excellent electrical insulating and non-corrosive properties.
- Nylon is exceptionally strong and exhibits high tensile strength, as well as high wear and impact resistance.
- Nylon is resistant to most organic solvents, fuels, oils, weak acids and bases.
- Socket head bolts are tightened and loosened with a hex key. Also known as socket cap screws, hex socket screws.
Product Summary
Nylon is strong and offers high wear and impact resistance. Tough and lightweight, nylon socket head fasteners offer excellent electrical insulation properties and are non-corrosive and non-magnetic. Nylon is resistant to most organic solvents, fuels, oils, weak acids and bases. Prolonged moisture exposure can affect its strength and dimensions.
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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