Stove Bolt Head Type Flat Material Steel Finish Zinc Plated Drive Slotted Thread Size 1/4 In.-20 Fastener Length 1 1/4 in Head Width 0.477 in Head Height 0.153 in Tensile Strength 60 000 psi Dimensional Standards ASME B18.6.3 Pack Size Small Minimum Thread Length 1 in Type Stove Bolt System of Measurement Inch Thread Type Coarse Package Quantity 100