ISO 8752, ISO 13337, DIN 1481, DIN 7346, BS 7060
Slotted spring pins consist of a single coil of spring steel or stainless steel with an open slot sufficiently wide to enable the pin to reduce in diameter as it is driven into a hole of appropriate size.
The ends of the pin have a bevelled chamfer. They are designed for plain drilled holes but a countersink makes assembly easier, especially for the ISO 8752 type.
Slotted pins are normally supplied in the heavy duty form to ISO 8752, but a light duty version can be supplied to ISO 13337.
It is possible to increase the shear strength of slotted pins by inserting a small diameter pin inside a large one. This should always be done by inserting the larger pin first, then inserting the smaller one, taking care that the slot is between 90° and 180° away from the slot in the larger pin.
Suitable combinations for pins to ISO 8752 standard are:
|Outer Pin||Inner Pin|
|Nominal Diameter, ISO 8752, mm||1.5||2||2.5||3||3.5||4||5||6||8|
|Hole Size (H12)||Max||1.6||2.1||2.6||3.1||3.62||4.12||5.12||6.12||8.15|
|Minimum Double Shear Strengths-Tested to ISO 8749, kN|
|Austenitic Stainless Steel||0.98||1.81||2.84||4.07||5.8||7.25||10.75||16.17||26.46|
|Lengths-from 4mm up to 180, depending on diameter. Ask for more information|
|Standard diameters are shown above, but we are also able to quote, as specials in other diameters; 1, 4.5, 7, 11, 13, 15, 18, 22, 24, 25, 26, 28, 30, 32, 34, 36, 38, 40mm|