The Westfield Fasteners range of UNF Nuts is presented below. These are designed to be used in conjunction
with the equivalent sized UNF bolts, screws and washers. Care must be taken when selecting the correct
nut to purchase, as we also offer coarse pitch variants. In grades A2, A4 and Zinc Plated hardened steel.
Bright Zinc Plated (BZP) USA grade 5 high tensile steel - equivalent to UK class 8, a general purpose non-stainless grade with a basic level of corrosion resistance.
Hexagon full nut to ASME B18.6.3. Typically fitted with a spanner or ratchet with socket. The most popular
nut type, and used for decades on all types of assembly throughout the world.
Nut conforming to ASME B18.2.2. Also known as a half nut, thin nut, or jam nut. Typically fitted with
a spanner or ratchet with socket, often used in pairs in a nut locking arrangement. A popular nut type,
and used for decades on all types of assembly throughout the world.
Prevailing torque type nut manufactured to IFI-100/107. Popularly employed Hexagon nut incorporating
a nylon insert to help prevent loosening when fitted. Typically fitted with a spanner or ratchet with
socket.
A popular nut used in applications where aesthetics are important. Also known as an Acorn nut, these
nuts are manufactured to ASME B18.2.2. These have a standard Unified Fine Thread Pitch (UNF). To be used
in conjunction with same sized UNF screws and bolts.
Prevailing torque nut, thin type. Popularly employed Hexagon nut incorporating a nylon insert to help
prevent loosening when fitted. Typically fitted with a spanner or ratchet with socket.
Slotted or split beam type hexagon locking nut, of all metal construction with UNF thread form. Manufactured
in the UK with the Aerotight trademark. Undersize threaded sections on top portion of nut mean that when
tightened into position the undersize section is forced outward creating high friction and a more secure
'locked' fitment.
An hexagon nut with incorporated flange. The flange offers protection for the bolted component where
the driving tool may otherwise scratch it's surface. The flange also lessens the need to use a washer.
This particular version has serrations on the base.
Hexagon Machine Screw Nuts (UNF - Unified Fine Pitch) imported from the USA. These nuts generally have
smaller internal diameters than the range available in standard hexagon nuts, so fit the smaller gauge
sizes for Imperial screws. They also tend to be thinner or lower in height but have a larger outer diameter.
These are specifically designed to be used in conjunction with other UNF screws or bolts. Often used
in small electrical goods manufacturing, such as computers and hifi systems.
