Great Planes Solder 4-40 Clevis (Set of 12) FEATURES: Made of hardened steel Has barbs to hold retainer in place Stepped clevis pin to reduce friction on the control arm INCLUDES: Twelve 4-40 nickel-plated solder clevises Twelve retainers (sections of medium fuel tubing) INCLUDES: Twelve 4-40 nickel-plated solder clevises Twelve retainers (sections of medium fuel tubing)