Details
F3-25 is a Dzus Type F flush/countersunk head stud with a 3/16" body diameter and .250" length. Locks with a quarter-turn into a mating Type S3 spring. Used on cowlings, access panels, and engine covers on WWII and vintage aircraft.
Part Number: F3-25
Head Type: Type F Flush
Body Diameter: 3/16" | Length (L): .250"
Tensile Strength: 350 lbs
Material: Heat-treated steel, cadmium plated
Condition: New Surplus
Compatible Springs: Type S3 (heights .150" or .175")
Compatible Grommets: Type GF3 (optional, used to protect panel hole)
Selecting Length: Add panel thickness + grommet height + clearance + spring height, then subtract spring deflection. Choose the stud with "L" dimension nearest to that value.
Photos are for reference only.
Warranty Information