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Zinc-Plated
Unit of Measure
1 2 

Item #

Diameter and Thread (A)

Inside Width (C)

Inside Length (B)

Thread Length (T)

For Pipe Size

51460 6 N/A 1/4"-20 N/A 7/8 " N/A 2-15/16 " N/A 2-1/2 " N/A 1/2 "
51465 1 N/A 1/4"-20 N/A 1-1/8 " N/A 3-3/16 " N/A 2-1/2 " N/A 3/4 "
51470 5 N/A 1/4"-20 N/A 1-3/8 " N/A 3-7/16 " N/A 2-1/2 " N/A 1 "
51505 4 N/A 3/8"-16 N/A 15/16 " N/A 3 " N/A 2-3/8 " N/A 1/2 "
51510 8 N/A 3/8"-16 N/A 1-1/8 " N/A 3-5/16 " N/A 2-3/8 " N/A 3/4 "
51515 3 N/A 3/8"-16 N/A 1-3/8 " N/A 3-7/16 " N/A 2-3/8 " N/A 1 "
51520 7 N/A 3/8"-16 N/A 1-11/16 " N/A 3-23/32 " N/A 2-3/8 " N/A 1-1/4 "
51525 2 N/A 3/8"-16 N/A 2 " N/A 4 " N/A 2-1/2 " N/A 1-1/2 "
51530 6 N/A 3/8"-16 N/A 2-7/16 " N/A 4-7/16 " N/A 2-1/2 " N/A 2 "
51535 1 N/A 1/2"-13 N/A 2-15/16 " N/A 5-7/32 " N/A 3 " N/A 2-1/2 "
51540 5 N/A 1/2"-13 N/A 3-9/16 " N/A 5-3/4 " N/A 3 " N/A 3 "
51545 0 N/A 1/2"-13 N/A 4-1/16 " N/A 6-1/4 " N/A 3 " N/A 3-1/2 "
51550 4 N/A 1/2"-13 N/A 4-9/16 " N/A 6-3/4 " N/A 3 " N/A 4 "
51555 9 N/A 1/2"-13 N/A 5-5/8 " N/A 7-13/16 " N/A 3 " N/A 5 "
51560 3 N/A 5/8"-11 N/A 6-3/4 " N/A 9-1/2 " N/A 3-3/4 " N/A 6 "
51565 8 N/A 5/8"-11 N/A 8-3/4 " N/A 11-1/8 " N/A 3-3/4 " N/A 8 "
51570 2 N/A 3/4"-10 N/A 10-7/8 " N/A 13-13/16 " N/A 4 " N/A 10 "
53165 8 N/A 1/4"-20 N/A 7/8 " N/A 2-15/16 " N/A 2-1/2 " N/A 1/2 "
53175 7 N/A 1/4"-20 N/A 1-1/8 " N/A 3-3/16 " N/A 2-1/2 " N/A 3/4 "
53180 1 N/A 1/4"-20 N/A 1-3/8 " N/A 3-7/16 " N/A 2-1/2 " N/A 1 "
53205 1 N/A 3/8"-16 N/A 15/16 " N/A 3 " N/A 2-3/8 " N/A 1/2 "
53210 5 N/A 3/8"-16 N/A 1-1/8 " N/A 3-5/16 " N/A 2-3/8 " N/A 3/4 "
53215 0 N/A 3/8"-16 N/A 1-3/8 " N/A 3-7/16 " N/A 2-3/8 " N/A 1 "
53220 4 N/A 3/8"-16 N/A 1-11/16 " N/A 3-23/32 " N/A 2-3/8 " N/A 1-1/4 "
53225 9 N/A 3/8"-16 N/A 2 " N/A 4 " N/A 2-1/2 " N/A 1-1/2 "
Unit of Measure
1 2