Buckeye Fasteners Rectangular - Dual Rib Projection Weld Nut RN 2113 New from bulk. No original packaging. Do have some rust marks from being in storage for some time. The slim, clean lines of the RN weld nut, with its self-locating pilot, has earned wide acceptance among designers of metal products. The RN nut has a pair of rib projections which are precisely located on either side of the threaded hole. This feature assures equal strength when tension is against the weld. A precision pilot greatly speeds feeding by locating itself quickly and positively in the hole. As a result of the pilot being held to close tolerances, the RN nut is ideal for extreme accuracy demanded in automated production lines. The RN nut also has good thread depth providing strong secure thread engagement. Thread Size 1/4-20 Width (in) 1/2 Thickness (in) 1/8 Length (in) 13/16 A (in) 0.500 Tol A (in) +0.020 / -0.005 B (in) 0.125 Tol B (in) +0.003 / -0.003 C (in) 0.813 Tol C (in) +0.014 / -0.016 E (in) 0.297 Tol E (in) +0.010 / -0.010 F (in) 0.050 G (in) 0.125 Tol G (in) +0.005 / -0.005 H (in) 0.023 Tol H (in) +0.002 / -0.002 I Ref. (in) 0.125 Hole In Sheet (in) 0.312 Material C1010 High-Welding Quality, Low Carbon Steel Finish Plain, Unless Specified Threads Unified Standard Class 2B ASME B 1.1-2003