This listing is for fifty pieces. The ND weld nut is a dual-tab spot weld nut for applications requiring additional strength where tension is against the weld. Established as the standard slot fastener in the aluminum extrusion industry (economy t nut). The location of the twin-tabs enables the ND to be used in bridging corners and recessed areas. A precision pilot speeds location and provides a full thread engagement. The ND can use the same electrodes, equipment and settings used in production, thus eliminating setup and changeover time, thereby lowering in-place-fastener cost.
Thread Size 5/16-18
Width (in) 5/8
Thickness (in) 9/64
Length (in) 1-1/2
Hole In Sheet (in) 0.375
Material C1010 High-Welding Quality, Low Carbon Steel
Plain Finish
Threads Unified Standard Class 2B ASME B 1.1-2003 
A 0.625"
B 0.141"
C 1.5"
E 0.359"
F 0.080"