... forged,quenched and tempered,with alloy pins;2,max proof load is 2.2 times the working load limit,min break strength is 6 ... 1/8/,1.1/4,1.3/8,1.1/2,1.3/4 Materialalloy steelTechnologyupset forgedProcessquenched and temperedProof load2 ... times working load limitMinimum break load6 times the working load limitSize available3/16"-1-3/4" ...