The Dzus Fastener Attachment Spring is designed for use with the Dzus Fastener.The S5 Spring suits the EHF5-XX type Dzus Fastener.The S6 Spring suits the EHF6-XX type Dzus Fastener.To calculate the correct pairing of fastener and spring us the following formula: Add together the thicknesses of both panels to be fastened and the spring clearance. Subtract spring deflection (0.047" for EHF5 and 0.062" for EHF6). Then select the fastener with the nearest shaft length.
