Description
UNC, 1″ (8 T.P.I.), Coarse Pitch, High Tensile (12.9), Self Colour DIN 912. Allen (hex) Socket, Cap Head, Allen Bolt, ISO 4762, BS 2470
Fixaballsells all lengths of 1″, UNC, self colour, cap head screw/ bolts.
Allen/ Hexagon Socket, Cap Head Screw/ Bolts
Socket Screw is short for,‘Allen SocketScrew’or ‘Hexagan Socket Screw’and isa generic term including the ‘bolt‘ version.The, Screw’,term is used to describe a fastener that is fully threaded in lengths up to and around (depending on the gauge/ diameter) 1 inch (from the underside of the head). Over, around 1 inch in length the fastener will have a, ‘shoulder,’ or unthreaded, plain shank under the head. This space of unthreaded area confirms that the fastener is now a bolt (cap head, boltinthecase of this listing). A little confusing, no? Some engineers may call them screws if the person only uses the shorter length range of sizes, under an inch or so. Some people might simply call them, ‘Allen bolts,’ if they’ve never seen it written down in association with the Allen, Hexagonal Key. So, 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. The ‘Cap‘ refers to the head which houses the hexagon socket.
Orders placed before 2pm are dispatchedsame 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.
UNC, 7/8″ Allen Socket, Cap Head Screw/ Bolt lengths at Fixaball:
(Fully Threaded –FT, Partially Threaded –PT)
| 1″-8×1 1/2″,(FT) SOCKET HEAD CAP SCREWS UNC SELF COLOUR (1960) |
| 1″-8×1 3/4″,(FT) SOCKET HEAD CAP SCREWS UNC SELF COLOUR (1960) |
| 1″-8×2 1/4″,(FT) SOCKET HEAD CAP SCREWS UNC SELF COLOUR (1960) |
| 1″-8×2 1/2″,(FT) SOCKET HEAD CAP SCREWS UNC SELF COLOUR (1960) |
| 1″-8×2 3/4″,(FT) SOCKET HEAD CAP SCREWS UNC SELF COLOUR (1960) |
| 1″-8×3″,(FT) SOCKET HEAD CAP SCREWS UNC SELF COLOUR (1960) |
| 1″-8×4″,(PT) SOCKET HEAD CAP SCREWS UNC SELF COLOUR (1960) |
| 1″-8×5″,(PT) SOCKET HEAD CAP SCREWS UNC SELF COLOUR (1960) |
| 1″-8×5 1/2″,(PT) SOCKET HEAD CAP SCREWS UNC SELF COLOUR (1960) |
| 1″-8×6″,(PT) SOCKET HEAD CAP SCREWS UNC SELF COLOUR (1960) |
High Tensile 12.9 Grade.
Available Materials: Black/ Self Colour
|
Material/ Finish |
Appearance |
Level of Corrosion Resistance |
Typical Application |
|
High Tensile Steel |
Self-Colour (black with no surface treatment) |
Low, without further surface treatment |
– No exposure to moisture – Often Greased/ Oilied |
UNC – UNF Capscrew Dimensions
|
Fixaball Specialist Fixings and Fasteners UNC/UNF Hexagon Socket Cap Screws Conforming to ASME/ ANSI B18.3 1960 Series |
||||||
|
Pitch TPI |
a |
ds |
h |
j |
||
|
Diameter |
UNC |
UNF |
Max |
Max |
Max |
Nom |
|
1″ |
8 |
12 |
1.31 |
1.00 |
1.00 |
5/8 |
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.
