Great Planes H/D Screw-Lock Connector (Set of 12) INCLUDES: Twelve steel Screw-Locks (drilled for .093 or 4-40 pushrod wire) Twelve steel retaining washers Twelve 4-40 x 3/16 socket cap screws for s REQUIRES: 5/32 Allen wrench to tighten screws and drilling hole in servo arm NMH 10-12-94 ir/jl REQUIRES: 5/32 Allen wrench to tighten screws and drilling hole in servo arm NMH 10-12-94 ir/jl