Description: The whole set of nylon screws: the screw kit contains a total of 260 small accessories, including 13 types: M3 nut, M3 washer, M3 screw (3 lengths), M3 recessed hexagon washer (4 lengths), M3 recessed hexagon nylon (4 lengths) High quality nylon material: M3 nylon silk mother is made of high quality nylon material, wear-resistant, corrosion-resistant, good toughness, non-toxic, light weight, good insulation, non-magnetic, high temperature resistance, good mechanical strength and good thermal insulation performance. With storage box: We provide you with a plastic storage box with 13 parts in one compartment. This is clean and tidy, not easy to confuse and reduces damage. Great for supporting and repairing PC cards, increasing productivity. Simple installation: Nylon screw kits are of fine workmanship, standard M3 models, fully transparent threads and uniform spacing and strength during use. It is an indispensable accessory for the assembly and repair of electronic equipment. Wide range of uses: M3 nylon spacer printed circuit boards can be used in machinery industry, electronics industry, test equipment, electrical equipment, medical equipment, communications, automobiles, engineering, energy and other fields, offering maximum practicality for assembly work and electronic maintenance. Specification: Color: black. Material: Nylon. Size: Approx 13.2*6.8*2.3 cm/5.20*2.68*0.91inch. Note: There might be a bit color distortions due to different computer resolutions. There might be a slight errors due to different hand measurement. Package Includes: 60pcs M3 Nuts 20pcs M3 Washer 20pcs M36mm Screws 20pcs M312mm Screws 20pcs M320mm Screws 15pcs M36mm6mm Single Head 15pcs M310mm6mm Single Head 15pcs M315mm6mm Single Head 15pcs M3