APPLICATION:-This flat-head hex socket screw is widely applicable FOR furniture assembly, vehicle maintenance,machinery debugging, and other scenarios requiring a flush mounting surface.ABOUT THIS PRODUCTS/FEATURES:-The screw head features an internal hexagon combined with a countersunk design. The internal hex socket structure, when paired with a standard hex wrench, efficiently transmits torque, reduces slippage, and enhances installation precision and efficiency.SPECIFICATION:Quantity: 20PcsSpecifications: #4-40 x 1/4"inchThread Diameter: #4Screw Length: 1/4"inchThread Pitch: 40PTIHead Diameter: 0.
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