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© Fixaball
UNF 7/16" Socket Screw Countersunk High Tensile 10.9 DIN7991
UNF 7/16" (20 T.P.I.), Fine Pitch, High Tensile (Grade 10.9), Self Colour. Allen (hex) Socket, Countersunk Head, Allen Screw/ Bolt, ISO 10642, B18.3, BS 2470
Fixaball sells all lengths of 7/16", UNF, countersunk socket screw bolts.
Hex/ Allen Socket Countersunk Screw/ Bolts
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.
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, 'Quantity' of packs selection from the drop down menus.
UNF, 7/16" Allen Socket, Countersunk Screw/ Bolt lengths at Fixaball:
FT - Fully Threaded
PT - Partially Threaded
| 7/16"-20x3/4",(FT) SOCKET COUNTERSUNK HEAD SCREWS UNF ALLOY SELF COLOUR |
| 7/16"-20x1",(FT) SOCKET COUNTERSUNK HEAD SCREWS UNF ALLOY SELF COLOUR |
| 7/16"-20x1 1/4",(FT) SOCKET COUNTERSUNK HEAD SCREWS UNF ALLOY SELF COLOUR |
| 7/16"-20x1 1/2",(FT) SOCKET COUNTERSUNK HEAD SCREWS UNF ALLOY SELF COLOUR |
| 7/16"-20x1 3/4",(FT) SOCKET COUNTERSUNK HEAD SCREWS UNF ALLOY SELF COLOUR |
| 7/16"-20x2",(FT) SOCKET COUNTERSUNK HEAD SCREWS UNF ALLOY SELF COLOUR |
| 7/16"-20x2 1/2",(PT) SOCKET COUNTERSUNK HEAD SCREWS UNF ALLOY SELF COLOUR |
High Tensile – 10.9 Grade.
Available Finish: Plain/ Black/ Self Colour
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Fixaball – Specialist Fixings and Fasteners UNC/ UNF Countersunk Socket Screw/ Bolt Diameters and T.P.I.'s Conforming to ISO 10642, B18.3, BS 2470 |
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Thread Pitch (Threads Per Inch/ T.P.I.) |
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Diameter |
UNC |
UNF |
|
No. 4 |
40 |
48 |
|
No. 5 |
40 |
44 |
|
No. 6 |
32 |
40 |
|
No. 8 |
32 |
36 |
|
No. 10 |
24 |
32 |
|
¼ |
20 |
28 |
|
5/16 |
18 |
24 |
|
3/8 |
16 |
24 |
|
7/16 |
14 |
20 |
|
½ |
13 |
20 |
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5/8 |
11 |
18 |
|
¾ |
10 |
16 |
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7/8 |
9 |
14 |
|
1 |
8 |
12 |
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1.1/4 |
7 |
12 |
|
1.1/2 |
6 |
12 |
Self Colour, High Tensile 10.9 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 (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.
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.
Image is for illustrative purposes only.
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Additional delivery notes
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PAYING VIA PAYPAL |
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Accepted Payment Methods
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Returns are accepted
Items must be returned within 30 days of the auction ending
Buyer will pay for return shipping.
Additional Information:
Returns 'NO QUIBBLE' Our returns policy lasts 30 days. If 30 days have gone by since delivery, unfortunately we can’t offer you a refund or exchange (+ a couple of days, grace). To be eligible for a return, your item must be unuséd and in the same condition that you received it. It must also be in the original packaging with original documentation. A restocking fee of 15% will be applied to refunds. Cost of sending the shipment is not refunded unless the wrong item was sent. To complete your return, we require a receipt, invoice or other proof of purchase. This will enable an easier process of locating and amending orders. Please keep all labels, stickers and original packaging to be eligible for free returns. Refunds (if applicable) NO QUIBBLE - We invite all people to stay with us as their preferred supplier of fixings and fasteners. If you're not happy, we will do everything possible to help. Please, please, please keep all documents, stickers, labels and packaging; it makes the process run quicker and easier. Orders over £1000 need to be returned within 5 working days to be accepted, processed and refunded. Late or missing refunds (if applicable) If you haven’t received a refund on the day of return please contact us to verify the situation. Banks vary in their reaction time to changes; there is often some processing time before a refund is posted. Any concerns no matter how small, contact: 01242 522244 Sale items (if applicable) Only regular priced items may be refunded, unfortunately sale items cannot be refunded. Exchanges (if applicable) NO QUIBBLE - All exchanges are welcomed, assuming that items are suitable for re-sale. Please, return the item with the invoice and a note describing what you would like as an exchange. AN invoice will be sent to cover the postage to send the exchanged item. Free returns are available in the very rare event that we have sent an incorrect item. Orders over £1000 need to be returned within 5 working days to be accepted, processed and exchanged. Shipping 99% of orders are dispatched the same day as purchase if the order was made before 2pm. After 2pm your order will join the following days post. Royal Mail deliver most items up to 2kgs and Interlink Express deliver our oversized and heavier items, next day. Usually, the easy bit is getting the order out the door, but, what happens after can occasionally disappoint us both. If delivery is crucial/ time sensitive, you should select a faster and/ or signed for postage option at checkout. Mailing Disclaimer 98% (490 orders) of shipping arrives on time. 2% (10 orders) are late 1.4% (7 orders) 1 day late 0.4% (2 orders) 2 days late 0.2% (1 order) 3+ days late 0.01% is reported lost. - 1 every couple of years Our 'NO QUIBBLE' guarantee gives you peace of mind that we will accept all, undamaged returns and issue a refund, every time. If you need a definite arrival time please select an express service at check out to avoid disappointment.
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