BA - Cap Head
4BA Socket Cap Screw High Tensile 12.9 DIN912
4BA Socket Cap Screw High Tensile 12.9 DIN912
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Postal Notification: Royal Mail 2nd Class delivers between 5-10 days, 5% of the time. Choose 1st or tracked at checkout for time sensitive shipments.
4BA, Cap Head, Socket Screw/ Allen Bolt, High Tensile (12.9), Self Colour.
Fixaball sells all lengths of 4BA socket cap screw/ bolts.
The, ‘Socket Cap Screw/ Allen Bolt,’ term is used to describe a fastener that is either fully or partially threaded. A screw is fully threaded and a bolt is partialy threaded. Some engineers may call them screws if the person uses the shorter length range of sizes. The thread stays the same length as the fastener gets longer and the maximum length of thread is equal to 2.5 times the diameter (or thereabouts). ‘Socket,’ refers to the hexagon shaped indentation found on the top of the fasteners’ head. Here, you can use a hexagon key (Allen Key) to tighten and loosen the fastener. 'Cap' refers to the cylindrical shaped head.
Orders placed before 2pm are dispatched same day (Mon-Fri).
Standard, Free Delivery is Royal Mail, 2nd Class (2-5 days, most likely 2 days). For a faster delivery time, select 1st class or courier at checkout.
Please make your size and pack quantity selection from the drop down menus at the top of the page.
4BA Allen Socket Cap Screw/ Bolts lengths available at Fixaball
(Fully Threaded - FT, Partially Threaded - PT)
Description |
4-BAx1/4",(FT) SOCKET HEAD CAP SCREW BS 2470 BA SELF COLOUR |
4-BAx5/16",(FT) SOCKET HEAD CAP SCREW BS 2470 BA SELF COLOUR |
4-BAx3/8",(FT) SOCKET HEAD CAP SCREW BS 2470 BA SELF COLOUR |
4-BAx1/2",(FT) SOCKET HEAD CAP SCREW BS 2470 BA SELF COLOUR |
4-BAx5/8",(FT) SOCKET HEAD CAP SCREW BS 2470 BA SELF COLOUR |
4-BAx3/4",(FT) SOCKET HEAD CAP SCREW BS 2470 BA SELF COLOUR |
4-BAx1",(FT) SOCKET HEAD CAP SCREW BS 2470 BA SELF COLOUR |
4-BAx1 1/4",(PT) SOCKET HEAD CAP SCREW BS 2470 BA SELF COLOUR |
4-BAx1 1/2",(PT) SOCKET HEAD CAP SCREW BS 2470 BA SELF COLOUR |
4-BAx2",(PT) SOCKET HEAD CAP SCREW BS 2470 BA SELF COLOUR |
4-BAx2 1 2",(PT) SOCKET HEAD CAP SCREW BS 2470 BA SELF COLOUR |
Material
High Tensile – 12.9 Grade.
BA. Threads
BA screw threads, named after the British Association for Advancement of Science, were devised in 1884 and standardised in 1903. Screws were described as "2BA", "4BA" etc., BA threads are specified by British Standard BS 93:1951 "Specification for British Association (B.A.) screw threads with tolerances for sizes 0 B.A. to 16 B.A." They are associated with metric units of measurement.
Important BA Thead Information
Screw Numbers |
Diameter of Screw |
Head Across Flats |
Threads per inch |
Pitch |
Diameter |
Tapping Drill Size |
16 BA |
0.0310 inch |
0.054 inch |
133.3 tpi |
0.0075 inch |
0.0220 inch |
Number drill 73 |
15 BA |
0.035 inch |
0.061 inch |
120.5 tpi |
0.0083 inch |
0.025 inch |
Number drill 70 |
14 BA |
0.039 inch |
0.068 inch |
109.9 tpi |
0.0091inch |
0.028 inch |
0.8 mm |
13 BA |
0.047 inch |
0.082 inch |
102 tpi |
0.0098 inch |
0.0352 inch |
Number drill 62 |
12 BA |
0.051 inch |
0.089 inch |
90.9 tpi |
0.011 inch |
0.0378 inch |
Number drill 60 |
11 BA |
0.059 inch |
0.103 inch |
81.9 tpi |
0.0122 inch |
0.0443 inch |
Number drill 56 |
10 BA |
0.067 inch |
0.117 inch |
72.6 tpi |
0.0138 inch |
0.0504 inch |
Number drill 54 |
9 BA |
0.075 inch |
0.131 inch |
65.1 tpi |
0.0154 inch |
0.0565 inch |
1.55 mm |
8 BA |
0.086 inch |
0.151 inch |
59.1 tpi |
0.0169 inch |
0.0657 inch |
Number drill 50 |
7 BA |
0.0982 inch |
0.172 inch |
52.9 tpi |
0.0189 inch |
0.0753 inch |
Number drill 46 |
6 BA |
0.11 inch |
0.193 inch |
47.9 tpi |
0.0209 inch |
0.0849 inch |
2.3 mm |
5 BA |
0.126 inch |
0.221 inch |
43 tpi |
0.0232 inch |
0.0981 inch |
Number drill 37 |
4 BA |
0.1420 inch |
0.249 inch |
38.5 tpi |
0.0260 inch |
0.1108 inch |
Number drill 31 |
3 BA |
0.1610 inch |
0.282 inch |
34.8 tpi |
0.0287 inch |
0.1266 inch |
Number drill 29 |
2 BA |
0.1850 inch |
0.324 inch |
31.4 tpi |
0.0319 inch |
0.1467 inch |
Number drill 22 |
1 BA |
0.2090 inch |
0.366 inch |
28.2 tpi |
0.0354 inch |
0.1665 inch |
Number drill 16 |
0 BA |
0.2360 inch |
0.413 inch |
25.4 tpi |
0.0394 inch |
0.1887 inch |
Number drill 9 |
Image is for illustrative purposes only.
Materials
Materials
Shipping & Returns
Shipping & Returns
Fixaball, UK Shipping.
Standard, Free Shipping at Fixaball is Royal Mail 48 (2-3 days). Shipping upgrades are available at checkout; please see the table below.
Postal Notification (Nov-Dec 2023): Royal Mail 2nd Class delivers between 5-10 days, 5% of the time. Choose 1st or tracked at checkout for time sensitive shipments.
Same day shipping courier available on request.
Handling Time
All orders are shipped the same day if ordered before 2pm, Monday to Friday, excluding weekends and bank holidays.
Value of Order | Shipping Service Type of Shipping | Speed of Shipping | Cost of Shipping |
All Values | Royal Mail 48 | 2 - 5 Working Days | Free |
£0 - £25 | Royal Mail 48 Tracked | 2 - 5 Working Days | £1.75 |
£25+ | Royal Mail 48 Tracked | 2 - 5 Working Days | Free |
£0 - £10 | Royal Mail 24, | 1 – 2 Working Days | £1.5 |
£10.01 - £25 | Royal Mail 24, | 1 – 2 Working Days | £2.5 |
£25.01 - £29.99 | Royal Mail 24, | 1 – 2 Working Days | £6.5 |
£0 - £20 |
Next Working Day, Tracked. MAINLAND ONLY |
Next Day, Before 5pm | £6 |
£20.01 - £40 |
Next Working Day, Tracked. MAINLAND ONLY |
Next Day, Before 5pm | £7.5 |
£40.01 - £120 |
Next Working Day, Tracked. MAINLAND ONLY |
Next Day, Before 5pm | £9 |
£120 - £200 |
Next Working Day, Tracked. MAINLAND ONLY |
Next Day, Before 5pm | £12.5 |
£200.01 - £300 |
Next Working Day, Tracked. MAINLAND ONLY |
Next Day, Before 5pm | £20 |
£300+ |
Next Working Day, Tracked. MAINLAND ONLY |
Next Day, Before 5pm | £30 |
All Values |
Next Working Day, Tracked. MAINLAND ONLY |
Next Day, Before 1pm. | £12 - £60 |
Royal Mail's retail compensation policy for loss
At Fixaball we will do everything possible to make sure our delivery/ despatch times are met, as reliability is our top priority. Royal Mail and DHL are fantastic shipping providers but on very rare occasions shipping will arrive late. Please select postage upgrades on shipping that is time sensitive. On even rarer occasion, mail is lost. Royal Mail allow 10 working days before they class post as 'lost'. After which time we can request compensation. Please see the table below.
Product |
Due Date |
Compensation for loss payable |
1st class- stamp/meter/account (Including Royal Mail Signed For ® sent as 1st class) Online Postage, Articles for the Blind |
Next working day after posting |
10 working days after due date |
2nd class - stamp/meter/account (Including Royal Mail Signed For® sent as 2nd class), Online Postage |
3 working days after posting |
10 working days after due date |
Royal Mail Special Delivery Guaranteed by 1pm ® (not posted on account)
|
On guaranteed date as per product specification
|
5 working days after due date
|
DHL - Packages over 2 kgs
In our opinion, DHL are the most efficient and reliable couriers. We choose them to provide you with the best shipping service available. Choose the courier option at checkout to trace your package.
Fixaball, International Orders.
Offshore and International Shipping
We use Royal Mail, Airmail, Tracked & Signed for international orders. However, if the order exceeds the maximum weight (2kg) we will use UPS. Often, discounts can be offered on light weight/ high value goods if you email or call. Also, faster delivery can be arranged on your request. The dispatch window for all of our offshore sales is 1 working day (most likely same day dispatch if ordered before 2pm).
Our delivery services are reliable; however, occasionally there may be a delay due to various unforeseen circumstances (weather, industrial action, holiday seasons). With this in mind, please consider feedback based on what we can control, which is our quick, dispatch time (same day if ordered before 2pm). Our aim is to do everything we can to support you.
Fixaball International Shipments: 3-5 days to the country + Customs Clearance |
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Total Value of Your Purchase |
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(Exchange Rate Will Change With the Global Exchange Rate) |
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Pound Sterling |
£0 - £20 |
£21- £40 |
£41 - £120 |
£121 - £200 |
£201 - £300 |
£300.00 |
Euros |
€0 - €23 |
€24 – €46 |
€47 – €138 |
€139 – €229 |
€231 – €345 |
€346 |
|
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Zone 1 England Scotland Wales |
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Pound Sterling |
£6.00 |
£7.50 |
£9.00 |
£12.50 |
£20.00 |
£30.00 |
Euros |
€6.9 |
€8.6 |
€10.5 |
€14.5 |
€23 |
€35 |
|
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Zone 2 Northern Ireland |
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Pound Sterling |
£6.50 |
£8.00 |
£9.50 |
£13.00 |
£25.00 |
£40.00 |
Euros |
€7.5 |
€9.2 |
€11 |
€15 |
€29 |
€46 |
|
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Zone 3 Belgium, France, Germany, Republic of Ireland, Luxembourg, Monaco, Netherlands |
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Pound Sterling |
£10.00 |
£15.00 |
£25.00 |
£35.00 |
£50.00 |
£80.00 |
Euros |
€11.5 |
€17.5 |
€29 |
€40 |
€58 |
€92 |
|
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Zone 4 Austria, Azores, Czech Republic, Denmark, Finland, Greece, Italy, Madeira, Poland, Portugal, Spain, Sweden |
||||||
Pound Sterling |
£12.00 |
£18.00 |
£30.00 |
£45.00 |
£70.00 |
£100.00 |
Euros |
€14 |
€21 |
€35 |
€52 |
€81 |
€115 |
|
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Zone 5 Bulgarian, Croatia, Cyprus, Estonia, Hungary, Latvia, Lithuania, Malta, Romania, Slovakia, Slovenia |
||||||
Pound Sterling |
£15.00 |
£20.00 |
£32.00 |
£50.00 |
£80.00 |
£120.00 |
Euros |
€17.5 |
€23 |
€40 |
€58 |
€92 |
€138 |
|
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Zone 6 Albania, Andorra, Belarus, Bosnia and Herzegonia, Ceuta, Faroe Island, Gibraltar, Greenland, Guernsey. Iceland, Jersey, Kosovo, Liechenstein, Macedonia, Moldova, Montenegro, Norway, Russia, San Marino, Serbia, Switzerland, Turkey, Ukraine |
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Pound Sterling |
£20.00 |
£25.00 |
£35.00 |
£55.00 |
£85.00 |
£125.00 |
Euros |
€23 |
€29 |
€41 |
€64 |
€98 |
€145 |
|
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Zone 7 Contact us Directly for a Bespoke Quote Canada, Mexico, Puerto Rico, United States |
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Zone 8 Contact us Directly for a Bespoke Quote China, Hong Kong, Indonesia, Japan, Macau, Malaysia, Phillipines, Singapore, South Africa, South Korea, Taiwan, Thailand, UAE |
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Zone 9 Contact us Directly for a Bespoke Quote Australia, New Zealand |
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Zone 10 Contact us Directly for a Bespoke Quote Rest of the World |
Dimensions
Dimensions
Customer Reviews

-
Free Shipping
Shipping PolicySame Day Despatch
All prices shown include VAT and Free, 2nd Class Royal Mail Shipping.
Upgrades Available
Signed For and Tracked
1st Class Royal Mail
DHL Next Day Courier (before 11pm and 1pm available)
-
Hassle-Free Refunds/ Exchanges
Refund/ Return PolicyReturn your Item within 30 days for a 'no quibble' (no reason) refund