610 PCS Grade8.8 SAE Bolt and Nut Assortment,1/4 5/16 3/8 1/2 Heavy Duty Hex Head Bolts and Nuts Kit with Yellow Zinc Plated, Includes 18 Common Size,

610 PCS Grade8.8 SAE Bolt and Nut Assortment,1/4 5/16 3/8 1/2 Heavy Duty Hex Head Bolts and Nuts Kit with Yellow Zinc Plated, Includes 18 Common Size,

【610PCS 1/4 5/16 3/8 1/2 Bolts and Nuts】This Concrete Screw set includes 18 different sizes of screws.Including 1/4 bolts nuts washers-274pcs, 5/16 bolts nuts washers-161pcs, 3/8 bolts nuts washers-137pcs, 1/2 bolts nuts washers-38pcs 【GRADE 8.8 ALLOY STEEL MATERIAL】High hardness bolts made of special heat-treated alloy steel. Tensile strength 800N/MM2 Nominal tensile strength up to 640MPa level, high hardness, can be applied to steel plate structure. 【SURFACE YELLOW ZINC PLATING】The galvanized surface of the bolts provides aesthetic appeal and protection.Zinc coating is thick, uniform and non-porous, good corrosion resistance can effectively protect the fasteners, and the galvanized layer has good ductility, can be bent without damage to the coating. 【WIDE APPLACATINON】It is suitable for most common industries, steel structure engineering projects, requiring higher strength steel structure thick steel plate, such as large machinery and equipment manufacturing, automobile manufacturing and so on. Choosing the right type of bolts can ensure the reliability and stability of the connection effect and improve the efficiency and safety of the equipment. 【EASY TO ORGANIZED】Our products come in a thick plastic box and are clearly identifiable by the product label on the lid. The outside of the box is also covered with a circle of foam and hard carton packaging, which can ensure that the product will not be damaged during transportation. 920PCS Grade8.8 SAE Bolt and Nut Assortment,1/4 5/16 3/8 1/2 Heavy Duty Hex Head Bolts and Nuts Kit with Yellow Zinc Plated, Includes 18 Common Size,Length from 11-65mm