Product Description: Material: manganese steel Color: black Size: M1.5 M2 M2.5 M3 M4 M5 M6 Weight: 370g Quantity: 390pcs Package includes: 30pcs x M1.5*6mm 30pcs x M2*18mm 30 pcs x M2.5*10 mm 30 pcs x M2.5*18 mm 30 pcs x M3*6 mm 30 pcs x M3* 12mm 30pcs x M3*18mm 30pcs x M4*8mm 30pcs x M4*10mm 30pcs x M4*14mm 30pcs x M4*20mm 30pcs x M5*30mm 30pcs x M6*30mm< /p> 13 Sizes 390 Pieces: Cotter Spring Pin Kit Includes: M1.5*6 M2*18 M2.5*10 M2.5*18 M3*6 M3*12 M3*18 M4*8 M4*10 M4*14 M4*20 M5*30 M6*30mm actual size and quantity enough to meet your different needs. Sturdy and durable: spring pins made of high density manganese steel, high hardness and stable black oxide finish resist corrosion, provide good appearance and good durability. Wide application: Split spring pins are widely used in automobiles, machinery, garages, workshops, electrical equipment, for positioning, connecting and fixing between parts. Mobile: Equipped with a plastic box, you can classify these spring pins in an organized way, more convenient to carry and take out, easily and quickly find their own needs. Perfect fasteners: The exquisite craftsmanship of the cotter pin kit provides you with an excellent experience, smooth and burr-free, the fastener seeker's best choice.