General Design Practice

The success of any fastener depends on how well it's applied and POP brand blind rivets are no exception. Careful design will produce good fastenings.

Some of the variables to consider are:

• Joint type, configuration, thickness, and material
• Hole size 
• Tool access
• Rivet size, material, and spacing 
• Tightness of clinch
• Hole type

The material that follows will provide a useful planning guide for most applications. In addition, we offer the services of our engineering staff to help with unusual requirements.

Channel Material

If the tool does not reach the bottom of a channel material, use a long nosepiece
(A). The maximum application diameter of the long nosepiece is the same as the
diameter of the rivet flange. The maximum length is 20mm. In this case, use a
long mandrel rivet. If method (A) is not applicable, set the rivet from the opposite side (B). In (C), a standard rivet tool can be used.

Soft to Hard Materials

When a standard type rivet is used to set soft materials onto hard materials, fracture of the soft material should be prevented when setting (A). When the soft
material is positioned at the secondary side, use a metal washer (B). When it is
located at the flange side, use a large flange (D) to distribute the stress.

Pivot Fastening

When it is required to rotate a fastened part, use a pivot nosepiece to provide a
small gap.

Gap Fastening

POP® Brand Rivets are widely used in assembling extruded sections because of
the limited access and clearances involved. As shown in (A), avoid setting against unsupported internal sections, which results in poor rigidity. Select (B)
to insure success.

Plastic Material

Select soft set aluminum rivets (A), large flange rivets (B), Peel rivets (C) or
LSR rivets (D) according to strength of resin workpiece. The standard types are
also applicable to a high-strength resin material.

Fastening in Blind Hole

Taking advantage of the swollen rivet diameter after setting, it is possible to
apply the rivet to a straight-through hole (A) or a blind hole (B).

Edge Distance

A distance of two times the rivet diameter (D) or more from the rivet center to
the end of the workpiece is recommended to avoid material fracture.