<p>A fastener for securing a drywall work piece to a metal substrate. The fastener includes an elongated flat body carrying a securing member and having a driving head disposed at a substantially right angle to the elongated flat body. The driving head defines a bore therein surrounded by a downwardly directed flange having a distal cutting edge which cuts the top paper laminate of the drywall allowing the head to countersink into the drywall without damaging the top paper laminate.</p>
申请公布号
WO2004085863(A1)
申请公布日期
2004.10.07
申请号
WO2004US08420
申请日期
2004.03.19
申请人
EVENING STAR INVESTMENTS, L.L.C.;FARRELL, MICHAEL, E.