SHOULDER SCREW, SHOULDER SCREW TYPE STANDARD SHOULDER SCREW, HEAD TYPE TRUSS, DRIVE TYPE COMBINATION SLOTTED/PHILLIPS, MATERIAL STEEL, FINISH ZINC PLATED, SYSTEM OF MEASUREMENT INCH, THREAD SIZE 1/4 IN.-20, MINIMUM THREAD LENGTH 5/16 IN, SHOULDER LENGTH 1/4 IN, SHOULDER LENGTH TOLERANCE +/-0.005 IN, SHOULDER DIAMETER 5/16 IN, SHOULDER DIAMETER TOLERANCE -0.004 IN TO +0.0 IN, PACK SIZE SMALL PACK, HEAD HEIGHT 5/32 IN, HEAD DIAMETER 9/16 IN, TENSIL