Quick Link
Stainless
steel quick links are used in corrosive environments for connecting two
pieces of chain together or any other items that need to be attached.
Quick Links are designed to quickly attach chain together, but have many
other applications.
Split Connecting (emergency) Link
Similar
to Quick Links, they can be used for joining two pieces of chain
together or to connect a chain to a component.
Cotter (Split) Ring
Design
allows for easy on/off. They are excellent for use with
clevis pins in heavy
duty construction and are reusable.
Rings O & D
Stainless
steel rings are used in corrosive environments usually connected to an
item so other items can be attached, such as handles, synthetic rope,
hooks and more.
Cotter Pin
A
clevis pin is a fastener that will allow rotation of the connected parts
about the axis of the pin. A clevis pin consists of a head, shank and
hole. The hole passes through the shank at the opposite end of the pin
from the head. A cotter pin is inserted through the hole to keep the
clevis pin in place after assembly of the parts to be fastened.
Commonly
the clevis pin is used with a shackle. A straight shackle looks like the
letter C, with holes at each end; when you insert the clevis pin you
create a D with the clevis able to rotate about the axis of the pin. A
twist shackle provides a loop at a right angle to the axis of rotation.
Clevis
pin are used instead of bolts as bolts are not intended to take the
lateral stress that a clevis pin must handle. The heads of clevis pins
sold into the marine environment or for other types of rigging are
typically larger and safer to use.
Older
implements, intended to be pulled by a team of draft animals, require a
twist shackle to be hitched.
A
clevis pin is often used to prevent two other pieces from moving
relative to each other. A clevis pin is less adjustable, in that it can
hold the two parts in exactly one relative position (because holes must
be drilled in both parts). A clevis pin is also more secure, as it is
less apt to come loose due to vibration.
Typical
uses of clevis pins include fastening turnbuckles in rigging. Clevis
pins are used extensively in sailboat rigging.
Drop Nose Safety Pin
The
drop nose pin has spring loaded mechanism that positively locks the pin
in either the open or closed position. The head features an annular
groove for attachment of a retaining wire if required.
Cotter Pin / Spring Cotter Pin
Cotter
pins (also known as cotter keys or a split pins) are a metal fastener
with two tines that are bent during installation, similar to a staple or
rivet. Typically made of wire with a half-circular cross section, cotter
pins come in multiple sizes and types.
A
cotter pin has its flat inner surfaces touching for most of its length
so that it appears to be a split cylinder. Once inserted, the two ends
of the pin are bent apart, locking it in place. In order to facilitate
the initial separation of the tines, one tine of the cotter pin is often
noticeably longer than the other; and in order to ease insertion into a
hole, the longer tine is often slightly curved or beveled to overlap the
tip of the shorter tine.
Cotter pins are frequently used to secure other fasteners, such as
clevis pins.
Cotter
pins are typically made of soft metal, making them easy to install and
remove, but also making it inadvisable to use them to resist strong
shear forces. It is advisable to always replace the cotter pin rather
than to reuse it.
Spring-type cotter pins, sometimes known as R-pins from their shape, are
also available, which are not designed to be permanently bent. In this
design, only one section of the pin passes through the shaft to be
secured, the other section being curved to wrap around the outside of
the shaft. This type of pin is usually made of round wire of a harder
metal (stainless steel) than is appropriate for traditional cotter pins.
Information
courtesy of Wikipedia.org