hexagon socket bolts m3-m10 stainless steel hex screws

Cylindrical head hex socket screw, also referred to as hex socket bolt, cup head screw, hex socket screw, its name is not the same, but represents the same meaning. Commonly used hex cylindrical head screws are 4.8, 8.8, 10.9, 12.9. Also known as hex screws, also known as hex bolts. Its head is hexagonal head, but also cylindrical head. There are stainless steel and iron according to the material. Stainless steel with stainless steel SUS202 hex cylindrical head screws, this is stainless steel ordinary material, stainless steel SUS304 hex cylindrical head screws, stainless steel SUS316 hex cylindrical head screws. According to the strength of hex socket head screws, iron has 4.8 grade hex socket head screws, 8.8 grade hex socket head screws, 10.9 grade hex socket head screws, 12.9 grade hex socket head screws. Class 8.8 -12.9 hex socket cylindrical head screws are called high strength and high grade hex socket bolts

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