Forged for high tension use in heavy-duty applications, this National Hardware eye bolt is pintle punched for 5/16" (1/2" size) or 3/8" (5/8" size) bolts. Designed with a shoulder for easy tightening, this eye bolt is crafted of rugged steel and protected with WeatherGuard technology for corrosion resistance. Bolt size = Safe Working Load (SWL)1/4" = 500 lb SWL5/16" = 800 lb SWL3/8" = 1, 200 lb SWL1/2" = 2, 200 lb SWL | HILLMAN 3260BC Eye Bolts Forged | Size 1/2" x 3-1/4"