SILICON BRONZE MATERIAL; 1-1/4 INCH; 1.25 LENGTH - DECIMAL; 1-1/4 LENGTH - FRACTIONAL; 1/2 INCH NOMINAL DIAMETER; 13 TPI; 1/2 NOMINAL DIAMETER - FRACTIONAL; .5 NOMINAL DIAMETER - DECIMAL; PACKAGING QUANTITY 50 PIECES PER CARDBOARD BOX