1/2-13 x 1 1/4 Machine Screws / Slotted / Flat Head / Steel / Zinc Plating (Quantity: 400 pcs)

Thread Diameter - Pitch: 1/2-13 Length: 1 1/4 The Flat Head Screw features a countersunk head with a flat top surface and a cone-shaped bearing surface with a head angle of approximately 82 degrees. Used in applications where protrusion of the fastener above the mating surface is unacceptable. Use a protrusion gage when measuring head height.