Description
UNF 1/4″, Fully Threaded Hex-Sets and Hex Bolts, High Tensile (5/ 8.8), Self-Colour/ Black
UNF 1/4″ has 28 T. P. I (Threads Per Inch)
Fixaballsells all lengths of UNF,1/4“, Hex Bolts and Hex Sets.
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.
UNF 1/4″ – 28 T. P. IFully or Partially Threaded::
(FT – Fully Threaded, PT – Partially Threaded)
| 1/4″-28×1/2″,(FT) HEXAGON SET SCREWS GRADE 5 UNF MED. CARBON SELF COLOUR |
| 1/4″-28×3/4″,(FT) HEXAGON SET SCREWS GRADE 5 UNF MED. CARBON SELF COLOUR |
| 1/4″-28×1″,(FT) HEXAGON SET SCREWS GRADE 5 UNF MED. CARBON SELF COLOUR |
| 1/4″-28×1 1/4″,(PT) HEXAGON BOLT GRADE 5 UNF MED. CARBON SELF COLOUR |
| 1/4″-28×1 1/2″,(PT) HEXAGON BOLT GRADE 5 UNF MED. CARBON SELF COLOUR |
| 1/4″-28×1 3/4″,(PT) HEXAGON BOLT GRADE 5 UNF MED. CARBON SELF COLOUR |
| 1/4″-28×2″,(PT) HEXAGON BOLT GRADE 5 UNF MED. CARBON SELF COLOUR |
| 1/4″-28×2 1/2″,(PT) HEXAGON BOLT GRADE 5 UNF MED. CARBON SELF COLOUR |
| 1/4″-28×2 3/4″,(PT) HEXAGON BOLT GRADE 5 UNF MED. CARBON SELF COLOUR |
| 1/4″-28×3″,(PT) HEXAGON BOLT GRADE 5 UNF MED. CARBON SELF COLOUR |
| 1/4″-28×3 1/4″,(PT) HEXAGON BOLT GRADE 5 UNF MED. CARBON SELF COLOUR |
| 1/4″-28×4″,(PT) HEXAGON BOLT GRADE 5 UNF MED. CARBON SELF COLOUR |
| 1/4″-28×4 1/2″,(PT) HEXAGON BOLT GRADE 5 UNF MED. CARBON SELF COLOUR |
| 1/4″-28×5 1/2″,(PT) HEXAGON BOLT GRADE 5 UNF MED. CARBON SELF COLOUR |
| 1/4″-28×6″,(PT) HEXAGON BOLT GRADE 5 UNF MED. CARBON SELF COLOUR |
High Tensile, UNC Hex Bolts and Hex Sets.
UNC and UNF high tensile standard is marked with an, ‘5’. This is comparable with Metric, High Tensile – 8.8.
Hex Bolt vs Hex Set Screw
A HexBoltis 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.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).
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 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.
Images are for illustration only
