A receiver-style hitch lock is typically a metal pin with a lock ... trailer connected to your vehicle at all times. We recommend the Ohuhu Receiver Hitch Pin Lock for Class I, II, III and IV ...

Safety pins are a must in every house. From quick clothing fixes to first aid essentials, these small metal objects can do ... keep clothing items together. All you need to do is pin one end ...

In 1849 US mechanic Walter Hunt (1796-1859) filed patent 6,281 for “a pin made of one piece of wire or metal combining a ... While he has gone down in design history as a serial inventor he ...