Threaded-Rod Zinc-Plated Mild-Steel 3/8"-16

National coarse threads. Zinc-plated steel finish for maximum rust protection. Designed for hanging, connecting, clamping, and supporting in plumbing, heating, and electrical applications and other DIY projects. Can be drilled, heated, shaped, welded, etc. National catalog model No. 4000BC.No. N179283: 6-32 x 12"No. N179291: 8-32 x 12"No. N179309: 10-24 x 12"No. N179408: 10-24 x 24"No. N179481: 10-24 x 36"No. N179317: 1/4"-20 x 12"No. N179416: 1/4"-20 x 24"No. N179499: 1/4"-20 x 36"No. N179580: 1/4"-20 x 72"No. N179325: 5/16"-18 x 12"No. N179424: 5/16"-18 x 24"No. N179507: 5/16"-18 x 36"No. N179598: 5/16"-18 x 72"No. N179333: 3/8"-16 x 12"No. N179432: 3/8"-16 x 24"No. N179515: 3/8"-16 x 36"No. N179606: 3/8"-16 x 72"No. N179341: 7/16"-14 x 12"No. N179440: 7/16"-14 x 24"No. N179523: 7/16"-14 x 36"No. N179614: 7/16"-14 x 72"No. N179358: 1/2"-13x12"No. N179457: 1/2"-13 x 24"No. N179531: 1/2"-13 x 36"No. N179622: 1/2"-13 x 72"No. N179366: 5/8"-11 x 12"No. N179465: 5/8"-11 x 24"No. N179549: