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.
A Guide to Lag Bolts and Their Uses
Coach screws (also known as lag screws or lag bolts) are essential heavy-duty fasteners primarily used in timber-to-timber construction. These robust screws feature a hexagonal head, making them ideal for high-torque applications. When you need extra strength and rust resistance for outdoor projects, black stainless steel coach screws are a top choice, especially in environments with excess moisture.
Key Applications:
*CHEMI-BLACK FINISHED*
This item has been chemically blacked, the process is also commonly known as black oxide treatment. The process involves chemical treatment and as a result, these items may be oily to touch.
Important Note: While stainless steel offers excellent corrosion resistance, it’s softer than carbon steel. For best results, always use a pilot drill, especially in hard woods like oak.
Specifics
Diameter (d1): Ø6mm
Length from under head (L): 100mm
Head height (k): 4mm
Across flats (s): 10mm
Across points (e): 10.89mm
Thread length: See diagram for indication. Please call us for exact measurement of current stock as it varies by batch
Material: A2 (304) Stainless steel
Finish: Black oxide
Din standard: DIN 571

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.
Dia: M6 (6mm)
Length: 100mm
SKU: A2CS06100-BK
3 In Stock
£1.52
EACH
Dia: M8 (8mm)
Length: 100mm
SKU: A2CS08100-BK
445 In Stock
£1.65
EACH
Dia: M10 (10mm)
Length: 100mm
SKU: A2CS10100-BK
368 In Stock
£2.70
EACH
Dia: M12 (12mm)
Length: 100mm
SKU: A2CS12100-BK
160 In Stock
£3.54
EACH