Great Planes Socket Head Screws feature a rust resistant zinc alloy plating. This plating resists corrosion keeping the screws in top notch condition year after year. The screws come in many sizes for most modeling applications. FEATURES: The screws feature a special zinc plating that resist corrosion INCLUDES: The screws come 4 per package and come in a special reusable plastic Parts Pak that can hang neatly on a peg board or in a field box. SPECS: 6-32 x 1¼" socket head cap screw REQUIRES: 7/64" hex wrench (GPMR8003) COMMENTS: This is not fully threaded. It is only threaded about 11/16". upaxy3/4/98 kpm 10/25/93 ir/jl