• Multi-Threaded Self-Retaining U-Nuts
Multi-Threaded Self-Retaining U-Nuts, also known as Tapped Barrel U-Nuts, are primarily used in the automotive industry where extra strength is required. The strength of the tapped barrel u-nut is equal to the machine screw used. It allows single-wrench tightening of the thread assembly. In addition, some multi-threaded u-nuts are available in Free Spin or Prevailing Torque designs. This page displays Metric Thread X Pitch Sizes M4 x 0.70 - M4.2 x 1.69 for various panel thicknesses and an assortment of specifications to meet your application needs.
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Item Name

Throat Depth

Fold Width

Overall Length

Pitch Size

N/A 0.60 to 30.80 Millimeter (mm) Panel Thickness Phosphate and Oil Multi-Threaded Self-Retaining U-Nut N/A N/A N/A N/A
N/A 0.60 to 30.80 Millimeter (mm) Panel Thickness Phosphate and Oil Multi-Threaded Self-Retaining U-Nut N/A 14 mm N/A 12.5 mm N/A 21 mm N/A 0.70 in
N/A 0.60 to 30.80 Millimeter (mm) Panel Thickness Phosphate and Oil Multi-Threaded Self-Retaining U-Nut N/A 10 mm N/A 12.5 mm N/A 17 mm N/A 0.70 in
N/A 0.60 to 30.80 Millimeter (mm) Panel Thickness Phosphate and Dry Oil Dry-to-Touch Multi-Threaded Self-Retaining U-Nut N/A 10 mm N/A 12.5 mm N/A 17 mm N/A 0.70 in
N/A 2.00 to 3.00 Millimeter (mm) Panel Thickness E-Coat/SEAL Coat Multi-Threaded Self-Retaining U-Nut N/A 7.6 mm N/A 12.5 mm N/A 16.9 mm N/A 1.41 in
N/A 0.50 to 2.00 Millimeter (mm) Panel Thickness Phosphate and Oil Multi-Threaded Self-Retaining U-Nut N/A 7.6 mm N/A 12.5 mm N/A 17.3 mm N/A 1.41 in
N/A 0.50 to 2.00 Millimeter (mm) Panel Thickness Magni Multi-Threaded Self-Retaining U-Nut N/A 7.6 mm N/A 12.5 mm N/A 17.3 mm N/A 1.41 in
N/A 0.50 to 2.00 Millimeter (mm) Panel Thickness Geomet and ML TopCoat Multi-Threaded Self-Retaining U-Nut N/A 7.6 mm N/A 12.5 mm N/A 17.3 mm N/A 1.41 in
N/A 0.60 to 3.90 Millimeter (mm) Panel Thickness Magni Multi-Threaded Self-Retaining U-Nut N/A 7.6 mm N/A N/A N/A 1.41 in
N/A 0.60 to 3.90 Millimeter (mm) Panel Thickness Phosphate and 2 Coats Paint and Oil Multi-Threaded Self-Retaining U-Nut N/A 7.6 mm N/A N/A N/A 1.41 in
N/A 0.60 to 3.90 Millimeter (mm) Panel Thickness Geomet Multi-Threaded Self-Retaining U-Nut N/A 9.1 mm N/A N/A N/A 1.41 in
N/A 0.60 to 30.80 Millimeter (mm) Panel Thickness Magni Multi-Threaded Self-Retaining U-Nut N/A 15 mm N/A 12.5 mm N/A 22 mm N/A 1.41 in
N/A 0.50 to 2.00 Millimeter (mm) Panel Thickness Magni Multi-Threaded Self-Retaining U-Nut N/A 10.1 mm N/A 12.5 mm N/A 17.3 mm N/A 1.41 in
N/A 0.60 to 30.80 Millimeter (mm) Panel Thickness Organic Type Zinc and Wax Type Coat Multi-Threaded Self-Retaining U-Nut N/A 9.1 mm N/A 12.5 mm N/A 16.3 mm N/A 1.41 in
N/A 0.60 to 30.80 Millimeter (mm) Panel Thickness Magni Multi-Threaded Self-Retaining U-Nut N/A 9.2 mm N/A 12.5 mm N/A 16.3 mm N/A 1.41 in
N/A 0.50 to 2.00 Millimeter (mm) Panel Thickness Phosphate and IRCO Seal and Oil Multi-Threaded Self-Retaining U-Nut N/A 10.1 mm N/A 12.5 mm N/A 17.3 mm N/A 1.41 in
N/A 2.00 to 3.00 Millimeter (mm) Panel Thickness Magni Multi-Threaded Self-Retaining U-Nut N/A 9.6 mm N/A 12.5 mm N/A 16.8 mm N/A 1.41 in
N/A 0.80 to 3.30 Millimeter (mm) Panel Thickness Geomet Multi-Threaded Self-Retaining U-Nut N/A 12.7 mm N/A 12.5 mm N/A 19.7 mm N/A 1.41 in
N/A 2.00 to 3.00 Millimeter (mm) Panel Thickness Mechanical Copper - ID Only Multi-Threaded Self-Retaining U-Nut N/A 9.6 mm N/A 12.5 mm N/A 16.8 mm N/A 1.41 in
N/A 30.800 to 0.650 Millimeter (mm) Panel Thickness Multi-Threaded Self-Retaining U-Nut N/A 14 mm N/A 12.5 mm N/A 7.55 mm N/A 1.41 in
N/A 0.60 to 30.80 Millimeter (mm) Panel Thickness Geomet Multi-Threaded Self-Retaining U-Nut N/A 10 mm N/A 12.5 mm N/A 16 mm N/A 0.70 in
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