(USED/FAIR) Kadrick Metric Screws Assortment,270 Pcs M4 Screw Kit,Hex Socket Head Cap Bolts, M4*6mm/8mm/12mm/16mm/20mm/30mm Screws Nuts and Washers, 12.9 Grade Alloy Steel,Black Zinc Plated,Anti Rust Upgrade

About us: Kadrick is a company with 25 years of fastener production experience. Our fasteners are widely used in aerospace, high-speed railway, ships, automobiles, computers, furniture and other fields. Specifications: Pitch:The distances between adjacent threads of these metric M4 screws are 0.8MM. Material: 12.9 grade alloy steel Screw Type: Hex socket head cap screw Package Included: M4 X 6 mm 20pcs M4 X 8 mm 20pcs M4 X 12 mm 15pcs M4 X 16 mm 15pcs M4 X 20mm 10pcs M4 X 30m 10pcs M4 Nuts 90pcs M4 Washers 90pcs Total:270pcs M4 12.9 grade alloy steel hex socket head cap screws nuts and washers with 1pcs allen wrench (free), suitable for small DIY projects such as 3D printing and RC cars DIY,precision machinery industry, classified instruments, instruments,electronic products, household appliances, communication products, locks, lamps, lights, toys, etc. High quality alloy steel:12.9 grade alloy steel with superior rust resistance ensures long lasting results，corrosion resistance, anti-aging, good toughness. Well packed: We use a small plastic box with clear classification to place these small screws. To prevent screw confusion, we also prepare another outer packaging to ensure that the products are not damaged during transportation. Note: Small Parts, Keep Away From Children Under 5 Years Old.