Unique design, efficient, and widely used. 1) Sizes: HT-15, 19, 25, 32, 38, 45, 50, 55, 57, 60, 64, 70, 75 with diameter of 2.2 or 2.1MM.2) Packing: 1,000 or 2000pcs/box, then10 boxes/carton.3) Made of low carbon steel.4) Unique design, efficient, good quality, widely used . SizeToleranceL15MM~75MM-0.2MMb6MM(COMMON) AND 6.9MM(BIG HEAD)+/-0.2MMH1.5MM+/-0.1MMd2.2Mm-0.05MMd12.2MM+0.05MM HT Nail - ...