PRECISION HARDENED INSERTS & STUDS have been designed to provide a hardened steel thread to resist tensile and torsional loading in the softer aluminium and zinc based diecastings.
The external spiral knurl cuts into the parent material reducing radial stresses in the casting.
Advantages
- Easy assembly with any squeeze press
- Low bursting stress allows the use of thinner walled bosses
- Steel thread provides a high degree of reusability
- Installed into plain cored hole
- Can be used for sheet thickness up to 6mm
- Eliminates tapping operations
Design Guide
Joint Design
To achieve optimum pull-out performance the joint must be designed with a stationary mating component in contact with the face of the insert.
Hole Preparation
Holes may be cored or drilled. The taper on a cored hole should be 0.5~ inclusive and the hole diameter recommended should apply at the point reached by the bottom of the insert.
Installation
Form a hole in the material to size recommended and install the fastener square in the hole. Apply pressure to the head of the fastener sufficient to totally install the broaching feature into the board, locking the fastener securely in place. Insert fixing screw or bolt from side opposite to the fastener head.
Wall Thickness
The minimum wall thickness will vary with the ductility of the diecasting alloy, but as a general guide wall thickness should not be less than the nominal thread diameter. Specific use of materials like magnesium and applications requiring thinner boss walls may require subtle changes to the design of the insert. In either case consultation with the PSM Technology Centre or local sales office and pre-production testing is essential.
Technical Data
STANDARD MATERIAL - Case Hardened Mild Steel
STANDARD FINISH - Zinc & Chromate
Dimensions
Stud Lengths - Lengths Available ('L')
How to Specify
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