Flat Head Screw
A Flat head screw includes a flat head and a shank with threads. The flat head is integral with a coupling end of the shank and includes a top face and a bottom face. A socket is defined in the top face and extends through the bottom face into the coupling end. The coupling end includes an enlarged coupling section having a top end contiguous to the bottom face. The enlarged coupling section further includes a lower end with a tapered section. The threads extend to the enlarged coupling section. A minor diameter of the threads on the enlarged coupling section is greater than that of the threads on the remaining portion of the shank by about 5-25%. A length of the enlarged coupling section is greater than at least one pitch of the threads for forming at least one thread on the enlarged coupling section.
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