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FREE Delivery Over £100
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A Guide to Stainless Steel 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, stainless steel coach screws are a top choice, especially in environments with excess moisture.
Key Applications:
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): Ø12mm
Length from under head (L): 300mm
Head height (k): 8mm
Across flats (s): 19mm
Across points (e): 20.88mm
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: Self colour (no plating)
Din standard: DIN 571
Click here to view a full size table
Orders over £100 will qualify for free 2-3 working day delivery*. Orders under £100 will be subject to a carriage charge - please see below for our delivery options.
We offer a number of different nationwide* services. Please see below for our delivery options.
*Please note that orders to the Isle of Wight, the Isle of Man, the Scottish Isles, the Scottish Highlands, Northern Ireland and the Channel Isles will incur a carriage surcharge.
*Long items greater than or equal to 1.5M in length will be subject to a length surcharge of £12. This surcharge is per shipment, and not per item.
Orders placed before 15:00 with next working day/timed services, Saturday & Royal Mail Special Delivery services will be dispatched the same day (Monday to Friday). Orders placed with any of these services after 15:00 will not be dispatched until the next working day. Orders placed on Saturdays, Sundays or bank holidays will be dispatched on the next working day. Next working day means Monday - Friday, excluding bank holidays. Orders placed with any of the aforementioned services will not be delivered on a Saturday or Sunday. For Saturday deliveries, select 'Saturday Delivery' in the basket.
We aim to despatch all orders with standard services within 2 working days, as long as all of the items are in stock.
We offer the following delivery services:
^Orders placed before 15:00 with next working day/timed services, Saturday & Royal Mail Special Delivery services will be dispatched the same day (Monday to Friday). Orders placed after 15:00 will not be dispatched until the next working day. Orders placed on Saturdays, Sundays or bank holidays will be dispatched on the next working day. Next working day means Monday - Friday, excluding bank holidays. Orders placed with any of the aforementioned services will not be delivered on a Saturday or Sunday. For Saturday deliveries, select 'Saturday Delivery' in the basket.
^^Royal Mail services are only offered to basket weights up to and including 2 kilos only. The 1pm & 9am Special Delivery times are for UK mainland only and will vary for Northern Ireland, Highlands & Islands. Please view the Royal Mail website for full details.
Please note that orders to the Isle of Wight, the Isle of Man, the Scottish Isles, the Scottish Highlands, Northern Ireland and the Channel Isles will incur a carriage surcharge.
Long items greater than or equal to 1.5M in length will be subject to a length surcharge of £12. This surcharge is per shipment, and not per item.
All orders are available for collection from our stores. Collection orders will normally be ready within 2 hours of the order being placed, as long as all items are in stock at the time of order.
TC Fixings offers a free van delivery service to Saffron Walden and the surrounding villages.
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Quantity WarningPlease be aware that this product only sold in multiples of 0.
Dia: M5 (5mm)
Length: 25mm
SKU: A2CS05025
400 In Stock
£0.15
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Dia: M5 (5mm)
Length: 30mm
SKU: A2CS05030
479 In Stock
£0.17
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Dia: M5 (5mm)
Length: 40mm
SKU: A2CS05040
392 In Stock
£0.21
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Dia: M5 (5mm)
Length: 50mm
SKU: A2CS05050
355 In Stock
£0.25
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Dia: M5 (5mm)
Length: 60mm
SKU: A2CS05060
376 In Stock
£0.32
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Dia: M5 (5mm)
Length: 70mm
SKU: A2CS05070
400 In Stock
£0.35
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Dia: M6 (6mm)
Length: 30mm
SKU: A2CS06030
292 In Stock
£0.12
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Dia: M6 (6mm)
Length: 40mm
SKU: A2CS06040
166 In Stock
£0.18
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Dia: M6 (6mm)
Length: 50mm
SKU: A2CS06050
829 In Stock
£0.16
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Dia: M6 (6mm)
Length: 70mm
SKU: A2CS06070
136 In Stock
£0.24
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Dia: M6 (6mm)
Length: 80mm
SKU: A2CS06080
299 In Stock
£0.34
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Dia: M6 (6mm)
Length: 90mm
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184 In Stock
£0.33
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Dia: M6 (6mm)
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SKU: A2CS06100
258 In Stock
£0.37
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Dia: M6 (6mm)
Length: 110mm
SKU: A2CS06110
156 In Stock
£0.46
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Dia: M6 (6mm)
Length: 120mm
SKU: A2CS06120
188 In Stock
£0.50
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Dia: M6 (6mm)
Length: 140mm
SKU: A2CS06140
68 In Stock
£0.71
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Dia: M8 (8mm)
Length: 40mm
SKU: A2CS08040
98 In Stock
£0.30
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Dia: M8 (8mm)
Length: 50mm
SKU: A2CS08050
645 In Stock
£0.37
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Dia: M8 (8mm)
Length: 65mm
SKU: A2CS08065
80 In Stock
£0.33
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Dia: M8 (8mm)
Length: 70mm
SKU: A2CS08070
782 In Stock
£0.34
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Dia: M8 (8mm)
Length: 80mm
SKU: A2CS08080
14 In Stock
£0.35
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Dia: M8 (8mm)
Length: 90mm
SKU: A2CS08090
295 In Stock
£0.39
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Dia: M8 (8mm)
Length: 100mm
SKU: A2CS08100
171 In Stock
£0.39
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Dia: M8 (8mm)
Length: 120mm
SKU: A2CS08120
222 In Stock
£0.58
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Dia: M8 (8mm)
Length: 130mm
SKU: A2CS08130
498 In Stock
£0.65
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Dia: M8 (8mm)
Length: 140mm
SKU: A2CS08140
93 In Stock
£0.69
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Dia: M8 (8mm)
Length: 150mm
SKU: A2CS08150
477 In Stock
£0.79
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Dia: M8 (8mm)
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SKU: A2CS08160
79 In Stock
£0.98
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Dia: M8 (8mm)
Length: 180mm
SKU: A2CS08180
55 In Stock
£1.24
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Dia: M8 (8mm)
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SKU: A2CS08200
150 In Stock
£1.34
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Dia: M10 (10mm)
Length: 40mm
SKU: A2CS10040
537 In Stock
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Dia: M10 (10mm)
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SKU: A2CS10050
528 In Stock
£0.43
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Dia: M10 (10mm)
Length: 60mm
SKU: A2CS10060
271 In Stock
£0.57
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Dia: M10 (10mm)
Length: 70mm
SKU: A2CS10070
177 In Stock
£0.52
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Dia: M10 (10mm)
Length: 80mm
SKU: A2CS10080
219 In Stock
£0.57
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Dia: M10 (10mm)
Length: 90mm
SKU: A2CS10090
178 In Stock
£0.62
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Dia: M10 (10mm)
Length: 100mm
SKU: A2CS10100
580 In Stock
£0.60
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Dia: M10 (10mm)
Length: 110mm
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78 In Stock
£0.80
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Dia: M10 (10mm)
Length: 120mm
SKU: A2CS10120
268 In Stock
£0.81
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Dia: M10 (10mm)
Length: 130mm
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729 In Stock
£0.83
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Dia: M10 (10mm)
Length: 140mm
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150 In Stock
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Dia: M10 (10mm)
Length: 150mm
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546 In Stock
£0.93
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Dia: M10 (10mm)
Length: 180mm
SKU: A2CS10180
643 In Stock
£1.48
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Dia: M10 (10mm)
Length: 200mm
SKU: A2CS10200
140 In Stock
£1.47
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Dia: M10 (10mm)
Length: 220mm
SKU: A2CS10220
101 In Stock
£2.73
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Dia: M10 (10mm)
Length: 240mm
SKU: A2CS10240
151 In Stock
£3.30
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Dia: M10 (10mm)
Length: 260mm
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102 In Stock
£3.57
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Dia: M10 (10mm)
Length: 280mm
SKU: A2CS10280
105 In Stock
£3.74
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Dia: M10 (10mm)
Length: 300mm
SKU: A2CS10300
110 In Stock
£5.24
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Dia: M12 (12mm)
Length: 50mm
SKU: A2CS12050
172 In Stock
£0.61
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133 In Stock
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105 In Stock
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SKU: A2CS12080
170 In Stock
£1.03
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Dia: M12 (12mm)
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SKU: A2CS12090
185 In Stock
£1.18
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SKU: A2CS12100
654 In Stock
£1.33
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SKU: A2CS12120
706 In Stock
£1.60
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196 In Stock
£1.45
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254 In Stock
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SKU: A2CS12150
460 In Stock
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Dia: M12 (12mm)
Length: 180mm
SKU: A2CS12180
528 In Stock
£2.12
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Length: 200mm
SKU: A2CS12200
490 In Stock
£2.31
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Length: 220mm
SKU: A2CS12220
218 In Stock
£3.02
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Length: 240mm
SKU: A2CS12240
132 In Stock
£3.28
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Length: 280mm
SKU: A2CS12280
83 In Stock
£4.16
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Dia: M12 (12mm)
Length: 300mm
SKU: A2CS12300
325 In Stock
£4.24
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Dia: M16 (16mm)
Length: 60mm
SKU: A2CS16060
36 In Stock
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Dia: M16 (16mm)
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40 In Stock
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Length: 100mm
SKU: A2CS16100
60 In Stock
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Dia: M16 (16mm)
Length: 130mm
SKU: A2CS16130
26 In Stock
£3.20
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Dia: M16 (16mm)
Length: 150mm
SKU: A2CS16150
5 In Stock
£4.21
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Dia: M16 (16mm)
Length: 180mm
SKU: A2CS16180
20 In Stock
£6.43
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Dia: M16 (16mm)
Length: 200mm
SKU: A2CS16200
71 In Stock
£5.29
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