... spike, dog spike,sharp-end spike and s hex head screw spike(screw spike)A: B:Elastic ... , nylon yarn, rubber foot.2 Standard componentsA: Hex bolt, square bolt, steel structure bolt, torshear type ... T type bolt, hinged bolt.B: Hex nut, square nut, hex flange nut, slotted nut, high strength ... flat washer, split pin4 Anti-loosen Fasteners Various nuts and bolts (Nylon anti-loosen, mechanical anti-loosen ...