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SPIROL’s Standard Metric Slotted Spring Pins have a number of advantages compared to Slotted Pins produced to the ISO 8752 specification:

  • Slot width narrower than the wall thickness, thus preventing the pins from nesting or interlocking.
  • Smaller expanded (pre-insertion) diameter which results in lower insertion force and smoother insertion.
  • Rounder pins, which in turn results in better conformance of the pin to the hole wall and eliminates the edge of the slot damaging the hole during insertion.
  • Lower stress in the spine of the installed pin. This results in longer pin life in shock or fatigue applications.
  • Ability to use automatic vibratory feeding of pins for installation without interlocking.
  • Plating of pins for additional corrosion resistance or appearance without “touch marks” or the bonding of nested pins

For more information about the benefits of the SPIROL Standard Slotted Pin over ISO 8752, click here

SPIROL’s Standard Metric Slotted Pins meet or exceed ASME B18.8.4M Type B specifications and are available in high carbon steel, nickel (austenitic) stainless steel and chrome (martensitic) stainless steel in diameters ranging from 1.5mm to 12mm.

In addition to being able to purchase or request a quote for SPIROL’s standard Slotted Spring Pins online, you are also able to view or download 2D drawings and 3D models of all available Slotted Pins. Simply select the part you want and scroll to the bottom of the page to download the 2D drawing / 3D model in the required format.

Different quantities, custom sizes, special materials and finishes can be requested by contacting SPIROL directly at info@spirol.com, calling any one of our global offices or by requesting a quote through the online configurator.

What's Better? ISO 8752 or
SPIROL Standard Slotted Spring Pins?
Discover the differences here:

Unit of Measure

Package Type

 N/A Box

Units per Box

 N/A 500

Nominal Dia

 N/A 4 mm

Length (L)

 N/A 12 mm

Material Type

 N/A High Carbon Steel

Material Grade

 N/A UNS G10700 / G10740
C67S (1.1231) / C75S (1.1248)

Finish

 N/A Plain, Oiled

Chamfer Length (C Min)

 N/A 0.30 mm

Chamfer Length (C Max)

 N/A 1.20 mm

Diameter (D Min)

 N/A 4.16 mm

Diameter (D Max)

 N/A 4.30 mm

Recommended Hole Size (Min)

 N/A 4.00 mm

Recommended Hole Size (Max)

 N/A 4.12 mm

Minimum Double Shear Strength

 N/A 12.3 kN

Heat Treatment

 N/A HV 458-560

Pin Straightness Tolerance

 N/A 0.20 - 0.22 mm

Specification

 N/A Meets or exceeds ASME B18.8.4M Type B specifications

Weight Per Piece

 N/A 0.0007599 kg0.0016752 lb

Order Processing Note

 N/A Orders typically ship in 2-3 business days. Orders received after 3pm EST will be processed on the next business day.