1 2 13 x 2 1 2" Stainless Hex Bolts 4 Pack (1 2" to 5" Length Available), Full Thread, Machine Thread, Plain Finish, Stainless Steel 18 8 (304) 1 2 13 x 2 1 2" ( 4 PCS) sold2026 Copper Mechanical Lugs Please note that for Copper Mechanical Lugs metal 12 Pieces bullet shaped grinding heads (diameter: 4 mm 5 mm 6 mm 8 mm 10 mm 12 mm) 12 Pieces cylinder shaped grinding heads (diameter: 4 mm 5 mm 6 mm 8 mm 10 mm 12 mm) Univeral shank diameter: 3mm Package include Bullet shaped grinding heads (4 mm) 2 Bullet shaped grinding heads (5 mm) 2 Bullet shaped grinding heads (6 mm) 2 Bullet shaped grinding heads (8 mm) 2 Bullet shaped grinding heads (10 mm) 2 Bullet shaped grinding heads (12 mm) 2 Cylinder shaped grinding heads (4 mm) 2 Cylinder shaped grinding heads (5 mm) 2 Cylinder shaped grinding heads (6 mm) 2 Cylinder shaped grinding heads (8 mm) 2 Cylinder shaped grinding heads (10 mm) 2 Cylinder shaped grinding heads (12 mm) 2 Free plastic box 1 electronics construction