Answer: A wrist strap contains: one 4mm female snap on the coil cord, one standard banana plug on the coil cord and one 4mm male snap on the wrist band. .
The 4mm female snap on the coil cord is sourced from a specialty fastener company. The snap is made to our specification and specially designed for use in a wrist strap.
The standard banana plug on the coil cord and the 4mm male snap on the wrist band are made with a Brown & Sharpe Ultramafic Screw Machine at our Chino, CA USA location.
We use 300 series stainless steel to machine the snaps and solid portion (the spring is sourced from a spring manufacturer) of the banana. Almost any machined component (stainless or brass) used in a Desco product is made at the Chino CA, USA location. Many of our machines have been in operation since Desco stared in 1979. The care and maintenance of our machines creates the most consistent and durable products on the market.