Push-On Inserts are self-locking, spring steel shaft retainers that provide a larger bearing surface so parts can be installed with automated assembly or pre-assembled to trim pieces. These Push-ons are available in 3-, 4-, 6-, 7- and 8-prong designs to fit non-threaded diameter studs in a wide variety of sizes. These self-threading fasteners greatly reduce installation costs and problems associated with cross threading. Their prevailing torque provides excellent resistance to vibration, and can simplify your designs.
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Push-On Inserts

0.469 Inch (in) Part Diameter Push-On Insert
Push-On Inserts

0.625 Inch (in) Part Diameter Push-On Insert
Push-On Inserts

0.812 Inch (in) Part Diameter Push-On Insert
Push-On Inserts

11 Millimeter (mm) Part Diameter Push-On Insert
Push-On Inserts

11 Millimeter (mm) Part Diameter Push-On Insert
Description N/A Push-On Inserts are self-locking, spring steel shaft retainers that provide a larger bearing surface so parts can be installed with automated assembly or pre-assembled to trim pieces. These Push-ons are available in 3-, 4-, 6-, 7- and 8-prong designs to fit non-threaded diameter studs in a wide variety of sizes. These self-threading fasteners greatly reduce installation costs and problems associated with cross threading. Their prevailing torque provides excellent resistance to vibration, and can simplify your designs.
Material Thickness (Decimal) N/A 0.014 in N/A .015 in N/A 0.017 in N/A 0.250 in N/A 0.250 in
Design Variation N/A F8 N/A 7 TABS N/A 7 TABS N/A F4 N/A D4
Part Diameter N/A 0.469 in N/A 0.625 in N/A 0.812 in N/A 11 mm N/A 11 mm
Part Height N/A 0.040 in N/A 0.056 in N/A 0.064 in N/A 1.59 mm N/A 1.59 mm
Stud Diameter N/A 5/16 in N/A 3/8 in N/A 0.490 in N/A M4 N/A M5
Features and Benefits N/A
  • Reduces cost by eliminating secondary operations like notching, threading and drilling
  • Enables fast assembly by simply pushing on the insert to apply
  • Knock-Down - products are applicable
  • Round Shaft Diameter must be +0.002/-0.003" what is listed
  • Shaft Hardness maximum of 30T-78
  • Shaft Materials must be appreciably softer than retainers.
  • Available in various styles, including an auto-feed design
Note N/A Shaft should have lead-in chamfer for best results. Push-on Inserts can be manufactured in a variety of finishes to meet your application. Please consult with an EFC representative for details.
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