FREE Delivery Over £30 Nett
15,000+ Stock Lines
30 Day Returns
Family Owned & Run
Celebrating 30 Years of Trading.
To mark 30 years of trading this month, we have reduced our carriage paid threshold to £30 nett.
Coach bolts, also commonly known as carriage bolts or cup square hex, are a 'self-locking' bolt used for timber-to-timber construction. The square underneath the head pulls into the timber and means you don't need to hold one side of the bolt with a wrench when tightening. Stainless steel coach bolts are a higher tensile strength than normal mild steel coach bolts, and so are not recommended for use in normal structural timber applications where joint movement needs to be accommodated. Stainless coach bolts and carriage bolts are ideal for exterior applications, or applications where the bolt will be exposed to excess moisture.
Applications
Specifics
D: M6 x 1.00 pitch
L: 30mm
dk: 16.55mm
k: 3.88mm
v: 6.48mm
f: 4.6mm
b: Not specified by DIN 603 - please call us if you have any specific requirements
Material: Stainless steel
Grade: A4 (316)
Finish: Self colour
Supplied with nuts: No
DIN standard: DIN 603
Click here to view a full size table

Delivery Options
TC Fixings Ltd offers a range of delivery services across the UK to suit different order sizes and delivery times. Orders are dispatched using reliable courier and postal services to ensure products arrive quickly and safely.
Delivery Summary
Free delivery: Orders over £30 nett qualify for free delivery
Same-day dispatch: Orders placed before 15:00 Monday–Friday are usually dispatched the same day (subject to stock availability)
Collection: Available from our premises
Local delivery: Free van delivery available in Saffron Walden and surrounding villages
Free Delivery
Orders over £30 nett qualify for free delivery.
If your order is close to the threshold, adding additional items may allow you to qualify for free delivery.
Free delivery applies to standard mainland UK delivery only.
Delivery Charges
Orders under £30 nett are subject to carriage charges. Available delivery options are shown below.
Royal Mail Services (Up to 2kg)
| Service | Delivery Time | Cost |
|---|---|---|
| Royal Mail Standard 48 Tracked | 3–5 working days | £4.99 |
| Royal Mail 24 Tracked (Most Popular) | 1–3 working days | £5.99 |
| Special Delivery by 1pm | Next working day | £14.99 |
| Special Delivery by 9am | Next working day | £49.99 |
Royal Mail services are available for consignments up to 2kg.
Courier Services
| Service | Delivery Time | Cost |
|---|---|---|
| Standard Courier | 2–3 working days | £6.98 |
| Express Delivery (Most Popular) | 1–2 working days | £8.99 |
| Next Working Day by 13:00 | Next working day | £10.99 |
| Next Working Day by 11:00 | Next working day | £14.99 |
| Saturday Delivery | Saturday | £9.98 |
Orders placed before 15:00 Monday–Friday are normally dispatched the same working day, subject to stock availability.
Delivery Surcharges
Additional charges may apply in certain circumstances.
Extended Delivery Areas
Orders to the following locations may incur additional delivery charges:
Isle of Wight
Isle of Man
Scottish Highlands
Scottish Isles
Northern Ireland
Channel Isles
These charges will be shown at checkout where applicable.
Long Item Surcharge
Items measuring 1.5 metres or longer are subject to a £12 length surcharge per shipment.
Dispatch Information
Orders placed before 15:00 Monday–Friday are normally dispatched the same working day when all items are in stock.
Orders placed after this time, or on weekends and bank holidays, will be dispatched on the next working day.
Next working day delivery services apply Monday–Friday excluding bank holidays.
Collection
Customers may collect orders from our premises.
Collection orders are normally ready within 1 hour, provided all items are in stock. Please wait for confirmation before travelling to collect your order.
Local Van Delivery
TC Fixings offers a free local van delivery service to customers in Saffron Walden and surrounding villages.
Please contact our team for further information if you are located in this area.
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M6 Dia
Length 30mm
SKU: A4CSQ06030
208 In Stock
£0.20
EACH
M6 Dia
Length 40mm
SKU: A4CSQ06040
196 In Stock
£0.42
EACH
M6 Dia
Length 60mm
SKU: A4CSQ06060
90 In Stock
£0.30
EACH
M12 Dia
Length 40mm
SKU: A4CSQ12040
350 In Stock
£1.19
EACH
M12 Dia
Length 100mm
SKU: A4CSQ12100
20 In Stock
£4.62
EACH