Fox Glow Plugs have Won Universal Acceptance. FEATURES: Gold-Plated Core Pieces that Eliminate Weld Failures Rhodium and Platinum Elements which Make the Plug Idle Better Exclusive Fox Insulating Makes it Resistant to 1800ºF Won"t Turn Brittle Fox Glow Plugs Perform Well and are Less Susceptible to Weather, Temperature, and Fuel. INCLUDES: One Short Standard Glow Plug (No Idle Bar) One Copper Washer SPECS: Thread size: 1/4-32 Short Reach (.15 and Smaller) with NO IDLE BAR COMMENTS: Standard (no idle bar) and R/C plugs (with idle bar) are available in long and short sizes. 12-10-98kzh ir/jl