Essential Split Pins are mostly described by their size—like the diameter of the wire before it’s split (things like 1/16 inch, 1/8 inch, 3/32 inch, 5mm, 6mm) and their length (measured from under the head to the end of the legs before bending). There are standard ratios for length to diameter. The hole they go into needs to be a little bigger than the pin’s diameter. Important details include the material type, how much shear force they can take, and sometimes the angle of the split or specific ways the legs need to bend. Knowing these measurements is key to picking the right split pin for a particular hole and load.
Carbon steel Essential Split Pins often get a zinc plating as a surface finish. This adds a layer that wears away first, which helps them resist rust better than plain steel. It works for places that aren’t too bad for rust—like indoor machines or under cars. The zinc plating can be clear (silvery) or yellow chromated (shiny gold/yellow), which holds up a bit better against rust and looks different. It’s a cheap way to make regular Essential Split pins last longer and look a bit better.
Mon | Φ2 |
Φ2.5 |
Φ3.2 |
Φ4 |
Φ5 |
Φ6.3 |
Φ8 |
Φ10 |
Φ13 |
Φ16 |
Φ20 |
d max | 1.8 | 2.3 | 2.9 | 3.7 | 4.6 | 5.9 | 7.5 | 9.5 | 12.4 | 15.4 | 19.3 |
d min | 1.7 | 2.1 | 2.7 | 3.5 | 4.4 | 5.7 | 7.3 | 9.3 | 12.1 | 15.1 | 19 |
a max | 2.5 | 2.5 | 3.2 | 4 | 4 | 4 | 4 | 6.3 | 6.3 | 6.3 | 6.3 |
a min | 1.25 | 1.25 | 1.6 | 2 | 2 | 2 | 2 | 3.15 | 3.15 | 3.15 | 3.15 |
c max | 3.6 | 4.6 | 5.8 | 7.4 | 9.2 | 11.8 | 15 | 19 | 24.8 | 30.8 | 38.5 |
c min | 3.2 | 4 | 5.1 | 6.5 | 8 | 10.3 | 13.1 | 16.6 | 21.7 | 27 | 33.8 |
Q: Can you supply custom-sized or non-standard Essential Split Pins?
A:Yeah, we can make Essential Split Pins that aren’t in the standard sizes. If you require a specific diameter, length, wire size or material, we can manufacture to order – simply send us a technical drawing or sample. There is a minimum number you have to order for custom Essential Split pins, though. Send us your exact details, and we’ll give you a quote.