Product Description Flanged button head socket cap screws are precision threaded fasteners with an internal socket drive (also called allen hex drive) and a flanged washer head for installing in areas with limited side clearance. Our flanged button head socket cap screws are known for its effecient application performance and endurance widely used in a variety of industries such as construction, manufacturing, engineering, assembling, automobile and so on. Product Specification Screw Style: Flanged Button head socket cap screws; Screw Size: M8-1.25 (8mm); Screw Length: 25mm; Drive Style: 5mm allen hex key; Head Diameter: 17.5mm; Thread Diameter: 8mm; Material: Stainless Steel 304; Package Included: 20 PCS;