Description
Unified Coarse (UNC) 1/4″, 5/16″, 3/8″, 7/16″, 1/2″, 9/16″, 5/8″, 3/4″, 7/8″, 1″, 1.1/4″, 1.1/2″, Full Nut, Grade 5, BS 1768, DIN 934, Self Colour
Fixaball sells Unified Fine (UNF and UNS), Full Hexagon Nut, Medium Carbon Steel, Grade 5, Self Colour, BS 1768, DIN 934.
Nuts are almost always used opposite a mating bolt to fasten a stack of parts together. The two partners are kept together by a combination of their threads’ friction, a slight stretch of the bolt, and compression of the parts.
The most common shape is hexagonal, for similar reasons as the bolt head – 6 sides give a good granularity of angles for a tool to approach from (good in tight spots), but more (and smaller) corners would be vulnerable to being rounded off. It takes only 1/6th of a rotation to obtain the next side of the hexagon and grip is optimal. However polygons with more than 6 sides do not give the requisite grip and polygons with fewer than 6 sides take more time to be given a complete rotation. Other specialized shapes exist for certain needs, such as wingnuts for finger adjustment and captive nuts (eg. cage nuts) for inaccessible areas.
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.
UNF/ UNS, Full Hex Nut, Zinc, Grade 5, DIN 934 diameter available:
1/4″-28 FULL NUTS GRADE 5 UNF MED. CARBON SELF COLOUR
5/16″-24 FULL NUTS GRADE 5 UNF MED. CARBON SELF COLOUR
3/8″-24 FULL NUTS GRADE 5 UNF MED. CARBON SELF COLOUR
7/16″-20 FULL NUTS GRADE 5 UNF MED. CARBON SELF COLOUR
1/2″-20 FULL NUTS GRADE 5 UNF MED. CARBON SELF COLOUR
9/16″-18 FULL NUTS GRADE 5 UNF MED. CARBON SELF COLOUR
5/8″-18 FULL NUTS GRADE 5 UNF MED. CARBON SELF COLOUR
3/4″-16 FULL NUTS GRADE 5 UNF MED. CARBON SELF COLOUR
7/8″-14 FULL NUTS GRADE 5 UNF MED. CARBON SELF COLOUR
1″-12 FULL NUTS GRADE 5 UNF MED. CARBON ZINC CR+3
1″-14 FULL NUTS GRADE 5 UNS MED. CARBON SELF COLOUR
1 1/4″-12 FULL NUTS GRADE 5 UNF MED. CARBON SELF COLOUR
1 1/2″-12 FULL NUTS GRADE 5 UNF MED. CARBON SELF COLOUR
UNIFIED THREAD STANDARDS
The basic American standards for fastening screw threads as agreed upon by standard bodies of U.K, Canada and the United States.
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.
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.
Fixaball sells Unified Fine (UNF) 1/4″, 5/16″, 3/8″, 7/16″, 1/2″, 9/16″, 5/8″, 3/4″, 7/8″, 1″, 1.1/4″, 1.1/2″ Full Hexagon Nut, Medium Carbon Steel, Grade 5 Steel, BS 1768, DIN 934
Full Nuts
Nuts are almost always used opposite a mating bolt to fasten a stack of parts together. The two partners are kept together by a combination of their threads’ friction, a slight stretch of the bolt, and compression of the parts.
The most common shape is hexagonal, for similar reasons as the bolt head – 6 sides give a good granularity of angles for a tool to approach from (good in tight spots), but more (and smaller) corners would be vulnerable to being rounded off. It takes only 1/6th of a rotation to obtain the next side of the hexagon and grip is optimal. However polygons with more than 6 sides do not give the requisite grip and polygons with fewer than 6 sides take more time to be given a complete rotation. Other specialized shapes exist for certain needs, such as wingnuts for finger adjustment and captive nuts (eg cage nuts) for inaccessible areas.
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‘, ‘diameter‘ and ‘quantity‘ of pack selection from the drop down menus.
UNC Full Hexagonal Nut Diameters Available
| 1/4″-28 FULL NUTS GRADE 5 UNF MED. CARBON SELF COLOUR |
| 5/16″-24 FULL NUTS GRADE 5 UNF MED. CARBON SELF COLOUR |
| 3/8″-24 FULL NUTS GRADE 5 UNF MED. CARBON SELF COLOUR |
| 7/16″-20 FULL NUTS GRADE 5 UNF MED. CARBON SELF COLOUR |
| 1/2″-20 FULL NUTS GRADE 5 UNF MED. CARBON SELF COLOUR |
| 9/16″-18 FULL NUTS GRADE 5 UNF MED. CARBON SELF COLOUR |
| 5/8″-18 FULL NUTS GRADE 5 UNF MED. CARBON SELF COLOUR |
| 3/4″-16 FULL NUTS GRADE 5 UNF MED. CARBON SELF COLOUR |
| 7/8″-14 FULL NUTS GRADE 5 UNF MED. CARBON SELF COLOUR |
| 1″-14 FULL NUTS GRADE 5 UNS MED. CARBON SELF COLOUR |
| 1 1/4″-12 FULL NUTS GRADE 5 UNF MED. CARBON SELF COLOUR |
| 1 1/2″-12 FULL NUTS GRADE 5 UNF MED. CARBON SELF COLOUR |
UNIFIED THREAD STANDARDS
The basic American standards for fastening screw threads as agreed upon by standard bodies of U.K, Canada and the United States.
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.
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.
|
Thread |
T.P.I UNC |
T.P.I UNF |
f (max) |
h (max) |
|
0 |
80 |
0.156 |
0.050 |
|
|
1 |
64 |
72 |
0.156 |
0.050 |
|
2 |
56 |
64 |
0.188 |
0.066 |
|
3 |
48 |
56 |
0.188 |
0.066 |
|
4 |
40 |
48 |
0.250 |
0.098 |
|
5 |
40 |
44 |
0.312 |
0.114 |
|
6 |
32 |
40 |
0.312 |
0.114 |
|
8 |
32 |
36 |
0.344 |
0.130 |
|
10 |
24 |
32 |
0.375 |
0.130 |
|
12 |
24 |
28 |
0.438 |
0.161 |
|
1/4 |
20 |
28 |
0.438 |
0.226 |
|
5/16 |
18 |
24 |
0.500 |
0.273 |
|
3/8 |
16 |
24 |
0.562 |
0.337 |
|
7/16 |
14 |
20 |
0.688 |
0.385 |
|
1/2 |
13 |
20 |
0.750 |
0.448 |
|
9/16 |
12 |
18 |
0.875 |
0.496 |
|
5/8 |
11 |
18 |
0.938 |
0.559 |
|
3/4 |
10 |
16 |
1.125 |
0.665 |
|
7/8 |
9 |
14 |
1.312 |
0.776 |
|
1 |
8 |
12 |
1.500 |
0.887 |
Image is for illustrative purposes only.
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