Stove Bolt Head Type Round Low Carbon Steel Length 5/8 In. Thread Length 1 In. Drive Type Slotted Finish Zinc Thread Size 1/4-20 Driver Size 7/16 In. Head Dia 0.472 In. Head Height 0.175 In. Hole Size 9/32 Temp Range (F) 0 - +375 Tensile Strength (PSI) 60 000 Rockwell Hardness B70-100 Meets/Exceeds ASME B18.6.3 Includes Matching Hex Nut Package Quantity 100