Model:1/2-13-2" security Bolfs, Suitable for with Thread Type: 13 TPI Coarse thread (UNC),Screw length 2"
[Unique design and super anti-theft effect]- Smooth special camber, so that any other tools can not unlock. It can only be unlocked with a matching key.
Suitable for support, vehicles, awnings, lamps, mountain bikes, protective window nets, etc.
304 stainless steel, high hardness, corrosion resistance, can be used in humid environments, and do not worry about rust.