Tork standard clasps are produced from Polyamide 6.6 material, which is known as the most durable of plastics. It has high strength and hardness thanks to its semi-crystalline structure. Thanks to these structural features, Tork standard clasps are the most suitable material for working under load due to their very high bending and tensile strength and low coefficient of friction. With the carbon black additive in black Tork clasps, it provides UV resistance in outdoor applications and provides excellent protection against sun rays.