Description
UNC, 3/8″, Hexagon Head Bolts, High Tensile (5/ 8.8), Zinc/ BZP/ Cr3
UNC 3/8″ has 16 T. P. I (Threads Per Inch)
Fixabal sells all lengths of 3/8″ UNC Bolts(PT-Partially Threaded) and Sets (FT-Fully threaded).
High Tensile, Bolt, 5 Grade Steel (8.8)
Unified National, high tensile standard is marked with an, ‘5’ and or 3 lines. This is comparable with Metric, High Tensile – 8.8.
Bolt vs Set
A HexBolt(Part Plain Shank Bolt)is the term used for apartially threadedfastener, with a hexagon head; designed to be used with a nut and washer. A HexSet (Screw Bolt)is the same, except it isfully 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!
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). As the bolt length gets longer the plain shank gets longer and the threaded part stays the same.
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.
See images for UNC/ UNF Technical DATA. e.g. Thread sizes, Spanner/ Wrench Sizes etc.
UNC 3/8″, 16 T. P. I (Threads Per Inch) Lengths Available:
| 3/8″-16×1/2″,(FT) HEXAGON SET SCREW GRADE 5 UNC MED. CARBON ZINC CR+3 |
| 3/8″-16×5/8″,(FT)HEXAGON SET SCREW GRADE 5 UNC MED. CARBON ZINC CR+3 |
| 3/8″-16×3/4″,(FT) HEXAGON SET SCREW GRADE 5 UNC MED. CARBON ZINC CR+3 |
| 3/8″-16×1″,(FT) HEXAGON SET SCREW GRADE 5 UNC MED. CARBON ZINC CR+3 |
| 3/8″-16×1 1/8″,(FT)HEXAGON SET SCREW GRADE 5 UNC MED. CARBON ZINC CR+3 |
| 3/8″-16×1 1/4″,(FT) HEXAGON SET SCREW GRADE 5 UNC MED. CARBON ZINC CR+3 |
| 3/8″-16×1 1/2″,(PT) HEXAGON BOLT GRADE 5 UNC MED. CARBON ZINC CR+3 |
| 3/8″-16×1 5/8″,(PT)HEXAGON BOLT GRADE 5 UNC MED. CARBON ZINC CR+3 |
| 3/8″-16×1 3/4″,(PT) HEXAGON BOLT GRADE 5 UNC MED. CARBON ZINC CR+3 |
| 3/8″-16×2″,(PT) HEXAGON BOLT GRADE 5 UNC MED. CARBON ZINC CR+3 |
| 3/8″-16×2 1/4″,(PT) HEXAGON BOLT GRADE 5 UNC MED. CARBON ZINC CR+3 |
| 3/8″-16×2 3/8″,(PT)HEXAGON BOLT GRADE 5 UNC MED. CARBON ZINC CR+3 |
| 3/8″-16×2 1/2″,(PT) HEXAGON BOLT GRADE 5 UNC MED. CARBON ZINC CR+3 |
| 3/8″-16×2 3/4″,(PT) HEXAGON BOLT GRADE 5 UNC MED. CARBON ZINC CR+3 |
| 3/8″-16×3″,(PT) HEXAGON BOLT GRADE 5 UNC MED. CARBON ZINC CR+3 |
| 3/8″-16×3 1/4″,(PT) HEXAGON BOLT GRADE 5 UNC MED. CARBON ZINC CR+3 |
| 3/8″-16×3 1/2″,(PT) HEXAGON BOLT GRADE 5 UNC MED. CARBON ZINC CR+3 |
| 3/8″-16×3 3/4″,(PT) HEXAGON BOLT GRADE 5 UNC MED. CARBON ZINC CR+3 |
| 3/8″-16×4″,(PT) HEXAGON BOLT GRADE 5 UNC MED. CARBON ZINC CR+3 |
| 3/8″-16×4 1/2″,(PT) HEXAGON BOLT GRADE 5 UNC MED. CARBON ZINC CR+3 |
| 3/8″-16×4 3/4″,(PT) HEXAGON BOLT GRADE 5 UNC MED. CARBON ZINC CR+3 |
| 3/8″-16×5″,(PT) HEXAGON BOLT GRADE 5 UNC MED. CARBON ZINC CR+3 |
| 3/8″-16×5 1/4″,(PT) HEXAGON BOLT GRADE 5 UNC MED. CARBON ZINC CR+3 |
| 3/8″-16×5 1/2″,(PT) HEXAGON BOLT GRADE 5 UNC MED. CARBON ZINC CR+3 |
| 3/8″-16×6″,(PT) HEXAGON BOLT GRADE 5 UNC MED. CARBON ZINC CR+3 |
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.
