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BSW - Countersunk Socket

BSW 5/16" Socket Screw Countersunk High Tensile 10.9 BS 2470

BSW 5/16" Socket Screw Countersunk High Tensile 10.9 BS 2470

Prezzo di listino £3.63 GBP
Prezzo di listino Prezzo scontato £3.63 GBP
In offerta Esaurito
Imposte incluse. Spese di spedizione calcolate al check-out.
No. of Items in Pack
Length (inches)

Postal Notification: Royal Mail 48 delivers between 2-3 days, 97% of the time. Choose 1st or tracked at checkout for time sensitive shipments.

BSW Whitworth 5/16" (18 T.P.I.), Coarse Pitch, High Tensile 10.9, Self Colour. Allen/ Hexagon Socket, Countersunk Head, Allen Screw/ Bolt, BS 2470

Fixaball sells all lengths of 5/16", BSW Whitworth, countersunk socket screw/ bolts.

Hex/ Allen Socket Countersunk Screw/ Bolts Description

Countersunk fasteners are designed to fit flush on the connecting surface when fully tightened. They are tightened and loosened with an allen/ hex key drive.

How to measure a countersunk fixing/ fastener

The length of a countersunk fixing/ fastener is always from tip to the top.

Socket Countersunk Screws come as 'sets' and 'bolts'. The, ‘SET’, term is used to describe a fastener that is fully threaded. Over a certain length (around 2.5 x the diameter) the length the fastener will have a, 'shoulder,' or unthreaded area under the head (plain shank). This space of unthreaded area confirms that the fastener is now a bolt (socket countersunk bolt in this case) and is shouldered. Some people might simply call them socket allen bolts,' in association with the Allen, Hexagonal Key which is used to tighten and loosen the fastener. So, ‘Socket,’ refers to the hexagon shaped indentation found on the top of the fasteners’ 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, 'No. of Items in Pack', 'Length', and pack 'Quantity' selection from the drop down menus.

 

BSW Whitworth, 5/16" Allen/ Hex Socket, Countersunk Screw/ Bolt lengths available:

FT - Fully Threaded

PT - Partially Threaded

5/16"-18x1/2",(FT) BSW SOCKET COUNTERSUNK HEAD SCREWS BS 2470 RC39-44 SELF COLOUR
5/16"-18x3/4",(FT) BSW SOCKET COUNTERSUNK HEAD SCREWS BS 2470 RC39-44 SELF COLOUR
5/16"-18x5/8",(FT) BSW SOCKET COUNTERSUNK HEAD SCREWS BS 2470 RC39-44 SELF COLOUR
5/16"-18x2",(PT) BSW SOCKET COUNTERSUNK HEAD SCREWS BS 2470 RC39-44 SELF COLOUR
5/16"-18x2 1/2",(PT) BSW SOCKET COUNTERSUNK HEAD SCREWS BS 2470 RC39-44 SELF COLOUR
5/16"-18x2 3/4",(PT) BSW SOCKET COUNTERSUNK HEAD SCREWS BS 2470 RC39-44 SELF COLOUR

 

 

High Tensile – 10.9 Grade.

Available Finish: Plain/ Black/ Self Colour 

Fixaball – Specialist Fixings and Fasteners

BSW Whitworth, Countersunk Socket Screw/ Bolt Diameters, T.P.I.'s and Allen/ Hex Key Sizes

Conforming to BS 2470

 

Thread Pitch (Threads Per Inch/ T.P.I.)

Diameter

BSW Whitworth

Allen Hexagon Key

¼

20

5/32"

5/16

18

3/16"

3/8

16

5/16"

7/16

14

5/16"

½

12

5/16"

 

Self Colour, High Tensile 8.8 Material Properties

Material/ Finish

Appearance

Level of Corrosion Resistance

Typical Application

High Tensile Steel (10.9)

Self-Colour (black)

Low, without further surface treatment

· No exposure to moisture

· Often Greased/ Oiled

 

UNIFIED THREAD STANDARDS 

The basic American standards for fastening screw threads as agreed upon by standard bodies of Canada, the United Kingdom, and the United States. They are a complete and integrated system of threads for fastening purposes. Their outstanding characteristic is general interchangeability of threads achieved through the standardization of thread form, diameter-pitch combinations, and limits of size

 

Unified National Coarse (UNC) is a thread form with a 60 degree flank angle rounded roots and flat crests. For a given diameter it has a larger thread pitch than an equivalent diameter UNF thread. The unified thread is based on inch sizes and was first standardised in 1948 unifying the Whitworth and American standard thread forms.

Unified National Fine (UNF) is a thread form with a 60 degree flank angle rounded roots and flat crests. For a given diameter it has a smaller thread pitch than an equivalent diameter UNC thread.

Unified National Extra Fine (UNEF) is a Unified thread form with a very fine (small) pitch that are typically used on instruments and parts requiring a fine adjustment.

Unified National (UN) thread form with a rounded root contour, applies only to external threads. (The UN thread form has a flat, or optionally, a rounded root contour.) The majority of fasteners with a Unified thread form (UNC UNF) have a rounded root contour i.e. are UNR threads.

 

Image is for illustrative purposes only.

Materials

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

 

My item is shown as delivered but it hasn't been?

What can I do if my item is shown as delivered, but it hasn’t been received?
If you’re the recipient:

Check whether the item was sent using a service that obtains a signature on delivery. If it was, do you recognise the name of the person who accepted the item? The name will be provided by the person who accepted the delivery and not always the person on the address label.
If the item was sent to your home, ask anyone else living there if they accepted the delivery. Please also check if the item has been left with a neighbour, or in your designated Safeplace if you have one.
If the item was sent to your work address, check with the post room and your colleagues to see if someone accepted the delivery.
If you bought the item online, check the shipping address was correct.

UPS - Packages over 2 kgs

We use UPS as our preferred courier. Please make sure all details of the address are included as courier drivers will not fill in the gaps, leading to long delays or even loss

 

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

Total Value of Your Purchase

(Exchange Rate Will Change With the Global Exchange Rate)

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

 

Zone 1

England Scotland Wales

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

 

Zone 2

Northern Ireland

Pound Sterling

£6.50

£8.00

£9.50

£13.00

£25.00

£40.00

Euros

€7.5

€9.2

€11

€15

€29

€46

 

Zone 3

Belgium, France, Germany, Republic of Ireland, Luxembourg, Monaco, Netherlands

Pound Sterling

£10.00

£15.00

£25.00

£35.00

£50.00

£80.00

Euros

€11.5

€17.5

€29

€40

€58

€92

 

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

 

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

 

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

Pound Sterling

£20.00

£25.00

£35.00

£55.00

£85.00

£125.00

Euros

€23

€29

€41

€64

€98

€145

 

Zone 7 Contact us Directly for a Bespoke Quote

Canada, Mexico, Puerto Rico, United States

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

Zone 9 Contact us Directly for a Bespoke Quote

Australia, New Zealand

Zone 10 Contact us Directly for a Bespoke Quote

Rest of the World

 

 

Dimensions

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  • Free Shipping

    Same 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)

    Shipping Policy 
  • Hassle-Free Refunds/ Exchanges

    Return your Item within 30 days for a 'no quibble' (no reason) refund

    Refund/ Return Policy