Safety pin is a common standard part commonly used in shelves, with nominal diameter of 3 / 8 (mm).
Stainless steel or plain carbon steel is used as the bolt part. The head is galvanized with iron and aluminum. The aluminum is oxidized. The products are used for electrical appliances, shelves or the connection of workpieces with high requirements.
The safety pin in the running mechanical equipment is that when the equipment is overloaded, the safety pin is first cut off to interrupt the transmission, so as to protect the safety of other parts of the equipment. Safety pin is generally used in coupling, sprocket or gear hub and flange connection, and bear heavy load parts. The calculation of the diameter of the safety pin does not take the safety factor, which is generally a little less than the strength limit.