Description
UNC 3/4″x Over and Including 8″, Hexagon Head Bolts (5/ 8.8), High Tensile, Zinc DIN 931
UNC 3/4″ has 10 T. P. I (Threads Per Inch)
Fixabal sellsalllengths of UNC 3/4″ bolts(PT-Partially Threaded) and Sets (FT-Fully threaded).
Hexagon Head Bolt
Bolt is the term used for a partially threaded fastener (bolt with shoulder/ part plain shank bolt), with a head; designed to be used with a nut and washer.
Orders placed before 2pm are dispatchedsame day (Mon-Fri) and free shipping is Royal Mail, 2nd Class (2-5 days). Postage upgrades available at checkout.
Please make your, ‘No. of Items in Pack‘, ‘Length‘ and, ‘Quantity‘ of packs selection from the drop down menus.
These bolts have threads as long as their diameters x 2.5 as a rule of thumb (please ask for exact measurement if it’s crucial).
If the size you need isn’t shown, please make inquires.
UNC, 3/4″, Hexagon Head Bolts Sizes Available
| 3/4″-10×8″,(PT) HEXAGON BOLT GRADE 5 UNC MED. CARBON ZINC CR+3 |
| 3/4″-10×8 1/2″,(PT) HEXAGON BOLT GRADE 5 UNC MED. CARBON ZINC CR+3 |
| 3/4″-10×9″,(PT) HEXAGON BOLT GRADE 5 UNC MED. CARBON ZINC CR+3 |
| 3/4″-10×10″,(PT) HEXAGON BOLT GRADE 5 UNC MED. CARBON ZINC CR+3 |
| 3/4″-10×11″,(PT) HEXAGON BOLT GRADE 5 UNC MED. CARBON ZINC CR+3 |
High Tensile, Bolt, 5 Grade Steel (8.8)
UNC and UNF high tensile standard is marked with an, ‘5’. This is comparable with, High Tensile – 8.8.
Bolt vs Set
A Hex Bolt(Shoulder Bolt)is the term used for a partially threadedfastener, with a hexagon head; designed to be used with a nut and washer. A HexSet (Screw Bolt)is the same, except it is fully threaded.
Bolt vs Screw
A screw screws into something, a bolt joinsseveral things together from both sides of materials joined. A screw is fully threaded from underneath the head and a bolt is partially threaded (has a part-plain shank/ shoulder). There are exceptions to the rules!
UNIFIED THREAD STANDARDS
Thread standards agreed upon by standard bodies of Canada, the United Kingdom, 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.) The majority of fasteners with a Unified thread form (UNC, UNF) have a rounded root contour i.e. are UNR threads.
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.
Images are for illustration only.
