Expansion Nuts are vibration-resistant fasteners that provide quick attachment in blind or center-panel locations. These Expansion Nuts have spring legs for self-retaining in rectangular holes. If permanent retention is required, a special locking tab can be provided. Design variations accommodate box or robotics styles. Easy to apply, Expansion Nuts can be used in place of weld-, clinch-, or stake-type fasteners. No masking is required because they will not clog when painted either before or after installation.
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Item #

Item Name

Panel Thickness

Screw Size

Hole Length

N/A M4.8 x 1.59 Screw Size Metal Expansion Nut N/A 0.7 mm2.3 mm N/A M4.8 x 1.59 N/A 13 mm
N/A M4.2 x 1.41 Screw Size Metal Expansion Nut N/A 0.7 mm1 mm N/A M4.2 x 1.41 N/A 8.65 mm
N/A M4.2 x 1.41 Screw Size Metal Expansion Nut N/A 1.6 mm1.9 mm N/A M4.2 x 1.41 N/A 8.8 mm
N/A M4.2 x 1.41 Screw Size Metal Expansion Nut N/A 2.3 mm2.8 mm N/A M4.2 x 1.41 N/A 11.8 mm
N/A NUT MID PNL MT STL/Zinc Rich S439 N/A 2.3 to 2.8 mm N/A M4.2 x 1.41 N/A 9.1 mm
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