UNC 1/4" Hex Bolt Set Screw High Tensille 8.8 Self Colour Black
UNC 1/4" Hex Bolt Set Screw High Tensille 8.8 Self Colour Black UNC 1/4", Fully Threaded Hex-Sets and Hex Bolts, High Tensile (5/ 8.8), Self-Colour/ Black. UNC and UNF high tensile standard is marked with an, '5'.