Lead-free aluminum couplings are crush-proof up to 4000 psi

you can easily dig and scoop without fatigue or strain

Injection-molded seamless construction is 100% liquid proof

Double-action allows use in either direction

3/8"-16X1" FT HEX CAP SCREWS GR5 CRS PLAIN [900/BX] Lead-free aluminum couplings are crush-proof3 8" 16X1" FT HEX CAP SCREWS GR5 CRS PLAIN [900 BX] A hex cap screw is a cap screw with a hexagonal head, designed to be driven by a wrench. Hex cap screws are fully threaded in shorter lengths (usually around up to 1 1 4 inch, depending upon the bolt diameter), and partially threaded with a shoulder beneath the fastener hex head in longer lengths. Grade 5 Zinc plated steel hex cap screws have a layer of corrosion resistance Grade 5 Zinc hex cap