Slotted Spring Pins – Sellock Pins

Slotted Spring Pins can also be known as Sellock Pins or Tension Pins.

Slotted Spring Pins are simply a single coil of steel with an open slot, this will enable the pin
to reduce its diameter, so that it can be easily inserted into the appropriate size hole. The
most common form of Spring Pin is the Heavy Duty type, DIN 1481/ISO 8752.

These pins are always listed by the hole size they are fitting in to.

We carry large stocks of these Pins, available for same day dispatch.

Cotter Pins, Split, DIN 94


A Split Cotter Pin is a simple fastening device to prevent parts being released off the end of a shaft. Alternatively, they can be very useful to prevent nuts coming undone off a threaded fastener by simply drilling through nut and bolt. The o/d of the pin is made marginally smaller than the hole size to give easy fit. Once inserted the legs are bent over in opposite directions to complete the fastening.

You can shop for Split Cotter Pins online using the link below.

METRIC E-CLIPS TO DIN 6799

One of our most popular products are our metric E-clips.

E-Clips are a basic form of a Circlip. They have the advantage that they can be
inserted from the side of the shaft rather than inserting from the end. Also, each E-Clip
has flexibility on the shaft size that it will suit.

We offer these parts in carbon steel & stainless steel. You can shop online using the links below.

Internal Circlips – Shop Online…

Wide range of Internal Circlips available to order online.

DescriptionDIN / Series SpecLink
Metric Internal CirclipsDIN 472https://springfasteners.co.uk/product-category/circlips/internal-circlips-carbon-steel/
Imperial Internal CirclipsSeries N1300https://springfasteners.co.uk/product-category/circlips/imperial-circlips-internal-n1300/
Inverted/Balanced Lug Series M1308https://springfasteners.co.uk/product-category/circlips/m1308-inverted-lug-internal-circlips/
Increased Abutment Series D2000 / DIN 984https://springfasteners.co.uk/product-category/circlips/internal-circlip-with-increased-abutment-d2000-din-984-range/

View our full range of Circlips here: https://springfasteners.co.uk/product-category/circlips/

Shim Washers & Flat Washers

What is the difference between a Shim Washer and a Flat Washer?

Even though Shim Washers can look very similar to Flat Washers and sometimes have the same dimensions, there is a difference in their purpose/usage.

Flat Washers are mainly used for load distribution, fastening and surface protection especially with screws, nuts & bolts. Whereas Shim Washers are widely used as space fillers or gap alignment. Shim Washers are also more precision made, with tighter tolerances.

Shim Washers also have various available thicknesses with the same inside diameter and outside diameter. For example, 8mm x 14mm has thicknesses available of 0.1mm, 0.2mm, 0.3mm, 0.5mm and 1mm.

We offer both Flat Washers and Shim Washers online.