BS 1768
Unified Hexagon Bolts, Screws and Nuts (UNC/UNF)
1/4 in to 2 in
UNC & UNF
Grade 2 / Grade 5 / Grade 8 / A2 / A4
Hex Head
Grade 2 Alloy / Stainless Steel
India
BS
Salt-spray tested to relevant grade
Per property class / grade
Dry, corrosion-inhibited packing
| Size (in) | TPI (UNC) | TPI (UNF) | s (in) | k (in) | L Range (in) |
|---|---|---|---|---|---|
| 1/4″ | 20 | 28 | 7/16 | 11/64 | 1/2–6 |
| 5/16″ | 18 | 24 | 1/2 | 13/64 | 1/2–6 |
| 3/8″ | 16 | 24 | 9/16 | 15/64 | 5/8–6 |
| 7/16″ | 14 | 20 | 5/8 | 9/32 | 3/4–6 |
| 1/2″ | 13 | 20 | 3/4 | 5/16 | 3/4–6 |
| 5/8″ | 11 | 18 | 15/16 | 25/64 | 1–6 |
| 3/4″ | 10 | 16 | 1-1/8 | 15/32 | 1–6 |
| 1″ | 8 | 12 | 1-1/2 | 39/64 | 1-1/4–6 |
Nominal Unified thread diameter across major thread.
Fastener length measured from bearing face to end.
Width across flats of hexagon head or nut.
Hexagon head height measured from bearing surface.
Every batch of BS 1768 Unified Hexagon Bolts, Screws and Nuts (UNC/UNF) is manufactured under an ISO 9001:2015 certified quality management system with full in-process control.
A mill test report covering chemical composition, tensile, hardness and dimensional inspection accompanies every BS 1768 Unified Hexagon Bolts, Screws and Nuts (UNC/UNF) shipment.
Commonly stocked BS 1768 Unified Hexagon Bolts, Screws and Nuts (UNC/UNF) sizes leave our warehouse within 48 hours of order confirmation, minimising your downtime.
Established freight and customs partners ensure reliable delivery of BS 1768 Unified Hexagon Bolts, Screws and Nuts (UNC/UNF) to buyers in over 50 countries worldwide.
Non-standard BS 1768 Unified Hexagon Bolts, Screws and Nuts (UNC/UNF) lengths, diameters and special thread pitches are produced to order to match your drawing requirements.
Direct-from-factory pricing on BS 1768 Unified Hexagon Bolts, Screws and Nuts (UNC/UNF) with no middleman markup, offering the best value on volume and repeat orders.
Hardness, tensile strength and dimensional checks for BS 1768 Unified Hexagon Bolts, Screws and Nuts (UNC/UNF) are performed in our in-house laboratory before every release.
Combine BS 1768 Unified Hexagon Bolts, Screws and Nuts (UNC/UNF) with other standard-specification fasteners into a single container shipment to reduce freight costs.
Our specialist team prepares all customs, compliance and shipping paperwork for every BS 1768 Unified Hexagon Bolts, Screws and Nuts (UNC/UNF) export order.
