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A2 Stainless Socket Button Head Screws – ISO 7380
Socket button head machine screws manufactured to ISO 7380, designed for secure fastening in metal, machinery, and precision assemblies. The low-profile domed head provides a neat finish while the hexagon socket drive allows controlled tightening with an Allen key or hex bit. These screws are produced from A2 stainless steel, making them suitable for general purpose and corrosion-resistant applications.
Key Features
• Button head design for a neat, low-profile finish
• Hexagon socket drive for controlled torque application
• Fully threaded machine screw
• Manufactured to ISO 7380 standard
• A2 (304) stainless steel for corrosion resistance
• Suitable for use with Allen keys or hex driver bits
Typical Applications
• Machinery and equipment assembly
• Electrical components and enclosures
• Automotive and mechanical assemblies
• Engineering and manufacturing equipment
• Furniture hardware and fittings
• General machine thread fastening into tapped holes or nuts
Practical Benefits
The button head design provides a smooth domed appearance while maintaining good bearing surface, making it suitable where appearance and clearance are important.
The hexagon socket drive allows higher tightening torque and reduces the risk of cam-out compared with traditional slotted or cross-recess screws.
A2 stainless steel offers good corrosion resistance in most indoor and outdoor environments, making these screws suitable for general engineering and construction use.
Manufacturing to ISO 7380 ensures consistent head dimensions, drive sizes and performance across installations.
What is a socket button head screw used for?
Socket button head screws are commonly used in machinery, equipment assembly and engineering applications where a low-profile head and strong drive engagement are required.
What does ISO 7380 mean?
ISO 7380 is the international standard that defines the dimensions and specifications for hexagon socket button head screws.
What tool is used to install these screws?
They are installed using a hex key or Allen key that fits the internal socket drive.
Are A2 stainless screws suitable for outdoor use?
Yes. A2 stainless steel provides good corrosion resistance and is suitable for most outdoor and general purpose environments.
Are button head screws fully threaded?
Yes, machine screws manufactured to ISO 7380 are typically fully threaded along the shank, allowing them to be used with nuts or tapped holes.
Specifics
Head diameter (Dk): 2.5mm
Overall length (Ls): 6mm
Thread length (LgV):
Head Diameter:
Head shape:
Drive Recess:
Blade Size:
Pack quantity:
Material: Steel
Surface protection:
Corrosion protection code:
EAN:
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.
M2.5 Dia
Length 6mm
SKU: A2SOB02506
798 In Stock
£5.28
PER 100
M3 Dia
Length 5mm
SKU: A2SOB03005
1002 In Stock
£6.60
PER 100
M3 Dia
Length 6mm
SKU: A2SOB03006
917 In Stock
£7.08
PER 100
M3 Dia
Length 8mm
SKU: A2SOB03008
125 In Stock
£7.80
PER 100
M3 Dia
Length 10mm
SKU: A2SOB03010
952 In Stock
£9.00
PER 100
M3 Dia
Length 12mm
SKU: A2SOB03012
679 In Stock
£9.24
PER 100
M3 Dia
Length 16mm
SKU: A2SOB03016
757 In Stock
£18.90
PER 100
M3 Dia
Length 20mm
SKU: A2SOB03020
982 In Stock
£6.48
PER 100
M3 Dia
Length 30mm
SKU: A2SOB03030
43 In Stock
£9.36
PER 100
M4 Dia
Length 6mm
SKU: A2SOB04006
162 In Stock
£8.16
PER 100
M4 Dia
Length 8mm
SKU: A2SOB04008
8222 In Stock
£7.10
PER 100
M4 Dia
Length 10mm
SKU: A2SOB04010
1226 In Stock
£7.80
PER 100
M4 Dia
Length 12mm
SKU: A2SOB04012
859 In Stock
£12.94
PER 100
M4 Dia
Length 16mm
SKU: A2SOB04016
330 In Stock
£25.12
PER 100
M4 Dia
Length 20mm
SKU: A2SOB04020
978 In Stock
£12.48
PER 100
M4 Dia
Length 25mm
SKU: A2SOB04025
1086 In Stock
£13.20
PER 100
M4 Dia
Length 30mm
SKU: A2SOB04030
154 In Stock
£16.08
PER 100
M4 Dia
Length 35mm
SKU: A2SOB04035
88 In Stock
£16.92
PER 100
M4 Dia
Length 40mm
SKU: A2SOB04040
279 In Stock
£21.60
PER 100
M5 Dia
Length 10mm
SKU: A2SOB05010
46 In Stock
£10.40
PER 100
M5 Dia
Length 12mm
SKU: A2SOB05012
477 In Stock
£16.20
PER 100
M5 Dia
Length 16mm
SKU: A2SOB05016
46 In Stock
£18.98
PER 100
M5 Dia
Length 20mm
SKU: A2SOB05020
348 In Stock
£16.80
PER 100
M5 Dia
Length 25mm
SKU: A2SOB05025
462 In Stock
£23.98
PER 100
M5 Dia
Length 30mm
SKU: A2SOB05030
1333 In Stock
£24.68
PER 100
M5 Dia
Length 35mm
SKU: A2SOB05035
231 In Stock
£31.64
PER 100
M5 Dia
Length 40mm
SKU: A2SOB05040
407 In Stock
£31.00
PER 100
M5 Dia
Length 45mm
SKU: A2SOB05045
134 In Stock
£31.00
PER 100
M5 Dia
Length 50mm
SKU: A2SOB05050
109 In Stock
£47.52
PER 100
M6 Dia
Length 6mm
SKU: A2SOB06006
28 In Stock
£14.78
PER 100
M6 Dia
Length 8mm
SKU: A2SOB06008
215 In Stock
£12.48
PER 100
M6 Dia
Length 10mm
SKU: A2SOB06010
268 In Stock
£20.66
PER 100
M6 Dia
Length 12mm
SKU: A2SOB06012
159 In Stock
£13.15
PER 100
M6 Dia
Length 16mm
SKU: A2SOB06016
207 In Stock
£25.87
PER 100
M6 Dia
Length 20mm
SKU: A2SOB06020
619 In Stock
£22.26
PER 100
M6 Dia
Length 25mm
SKU: A2SOB06025
879 In Stock
£24.53
PER 100
M6 Dia
Length 30mm
SKU: A2SOB06030
610 In Stock
£25.73
PER 100
M6 Dia
Length 35mm
SKU: A2SOB06035
22 In Stock
£32.45
PER 100
M6 Dia
Length 40mm
SKU: A2SOB06040
142 In Stock
£38.69
PER 100
M6 Dia
Length 50mm
SKU: A2SOB06050
121 In Stock
£42.12
PER 100
M6 Dia
Length 55mm
SKU: A2SOB06055
185 In Stock
£59.52
PER 100
M6 Dia
Length 80mm
SKU: A2SOB06080
177 In Stock
£115.28
PER 100
M8 Dia
Length 10mm
SKU: A2SOB08010
173 In Stock
£39.74
PER 100
M8 Dia
Length 12mm
SKU: A2SOB08012
430 In Stock
£29.28
PER 100
M8 Dia
Length 16mm
SKU: A2SOB08016
29 In Stock
£32.51
PER 100
M8 Dia
Length 18mm
SKU: A2SOB08018
79 In Stock
£52.42
PER 100
M8 Dia
Length 20mm
SKU: A2SOB08020
29 In Stock
£43.26
PER 100
M8 Dia
Length 25mm
SKU: A2SOB08025
163 In Stock
£58.21
PER 100
M8 Dia
Length 30mm
SKU: A2SOB08030
60 In Stock
£57.12
PER 100
M8 Dia
Length 35mm
SKU: A2SOB08035
313 In Stock
£51.91
PER 100
M8 Dia
Length 40mm
SKU: A2SOB08040
13 In Stock
£60.48
PER 100
M8 Dia
Length 50mm
SKU: A2SOB08050
21 In Stock
£86.11
PER 100
M8 Dia
Length 60mm
SKU: A2SOB08060
67 In Stock
£136.08
PER 100
M10 Dia
Length 20mm
SKU: A2SOB10020
109 In Stock
£36.29
PER 100
M10 Dia
Length 25mm
SKU: A2SOB10025
505 In Stock
£43.75
PER 100
M10 Dia
Length 30mm
SKU: A2SOB10030
51 In Stock
£70.81
PER 100
M10 Dia
Length 35mm
SKU: A2SOB10035
98 In Stock
£73.13
PER 100
M10 Dia
Length 40mm
SKU: A2SOB10040
25 In Stock
£66.78
PER 100
M10 Dia
Length 50mm
SKU: A2SOB10050
599 In Stock
£70.56
PER 100
M10 Dia
Length 70mm
SKU: A2SOB10070
36 In Stock
£107.35
PER 100
M10 Dia
Length 80mm
SKU: A2SOB10080
89 In Stock
£96.82
PER 100
M12 Dia
Length 40mm
SKU: A2SOB12040
81 In Stock
£97.68
PER 100
M12 Dia
Length 60mm
SKU: A2SOB12060
100 In Stock
£135.12
PER 100
M12 Dia
Length 100mm
SKU: A2SOB12100
17 In Stock
£241.92
PER 100
