Overview Reviews Product Description 5/16 x18 TPI x 1/2 inch Alloy Steel Flat Head Socket Cap Screw - UNC Product Videos Custom Field UOM EA Product Reviews Write a Review Write a Review × 5/16-18X1-1/2 FLAT HD SOCKET BOLT Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Email * Review Subject * Comments *