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 Imperial Thread X Pitch Sizes from 1/4 x 20 - 10 x 32.
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Multi-Threaded Self-Retaining Imperial U-Nuts

0.025 Inch (in) Minimum Panel Thickness Multi-Threaded Self-Retaining Imperial Plain U-Nut
Multi-Threaded Self-Retaining Imperial U-Nuts

0.030 Inch (in) Minimum Panel Thickness Multi-Threaded Self-Retaining Imperial Anodic E-Coat and Dry-to-Touch Oil U-Nut
Multi-Threaded Self-Retaining Imperial U-Nuts

0.050 Inch (in) Minimum Panel Thickness Multi-Threaded Self-Retaining Imperial Phosphorous and Oil U-Nut
Multi-Threaded Self-Retaining Imperial U-Nuts

0.050 Inch (in) Minimum Panel Thickness Multi-Threaded Self-Retaining Imperial Dacromet U-Nut
Multi-Threaded Self-Retaining Imperial U-Nuts

0.050 Inch (in) Minimum Panel Thickness Multi-Threaded Self-Retaining Imperial Phosphorous and Oil U-Nut
Description N/A 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 Imperial Thread X Pitch Sizes from 1/4 x 20 - 10 x 32.
Weight N/A
Color N/A Plain N/A Black with Prevailing Torque N/A Black N/A Silver N/A Black
Material N/A Spring Steel
Overall Length N/A 0.940 in N/A 0.920 in N/A 1.290 in N/A 1.290 in N/A 1.310 in
Finish N/A Plain N/A Anodic E-Coat and Dry-to-Touch Oil N/A Phosphorus and Oil N/A Dacromet N/A Phosphorus and Oil
Overall Width N/A 0.590 in N/A 0.560 in N/A 0.930 in N/A 0.930 in N/A 0.960 in
Throat Depth N/A 0.540 in N/A 0.450 in N/A 0.660 in N/A 0.660 in N/A 0.730 in
Original Equipment Manufacturer (OEM) Reference N/A 4526/S2 - 153293 N/A N/A N/A N/A
Thread x Pitch N/A 1/4 x 20 N/A 1/4 x 20 N/A 3/8 x 16 N/A 3/8 x 16 N/A 3/8 x 16
Minimum Panel Thickness N/A 0.025 in N/A 0.030 in N/A 0.05 in N/A 0.05 in N/A 0.05 in
Maximum Panel Thickness N/A 0.150 in N/A 0.150 in N/A 0.2 in N/A 0.2 in N/A 0.2 in
Features and Benefits N/A
  • Savings - Reduce labor, weight and cost of your applications
  • Performance - These will out-perform Weld-Nuts
  • Anti-Wrenching - No fear of cross threading or stripping
  • Prevailing Torque Locking Feature - Offered as an option
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