Installation tool/fastener system for roof truss framing and construction

An installation tool and fastener for fastening a first member to a second member comprising:

• a fastener having a head with a drive-type and a maximum head diameter and a shank extending from said head and having a thread with a major diameter less than said maximum head diameter;
• a transfer assembly comprising an elongated tube assembly having a proximal end portion and a distal end, said proximal end portion adapted to receive a power tool, and a torque transfer unit disposed in said tube assembly transfers torque produced by said power tool to a fastener coupler adjacent said distal end, and a centering assembly disposed in said tube assembly which engages said fastener to center said fastener in said tube, said centering assembly comprising a centering member having opposed ends defining a centering axis and continuously extending about said centering axis between said opposed ends along the full axial extent thereof and having an enlarged portion which tapers to a reduced portion, said enlarged portion being closer to said distal end than said reduced portion:
• and
• a guide assembly mounted at said distal end and having an engagement surface and a fastener channel having a distal channel discharge opening defining an axis at an acute angle to said engagement surface and having a uniform channel diameter which is slightly greater than said maximum diameter and configured to receive said fastener so that when said engagement surface is positioned relative said first member, said fastener is received in said channel through said distal channel discharge opening, said reduced portion guides said driver head into engagement with said fastener coupler, a power tool is energized, said fastener coupler rotatably engages said driver head and the power tool drives said fastener through said distal channel discharge opening and said first member into said second member.

An installation tool and fastener for fastening a first member to a second member comprising:

• a fastener having a head with an external drive head and a shank extending from said head and having an uninterrupted thread, said fastener having a maximum diameter;
• a transfer assembly comprising an elongated telescopic tube assembly having a proximal end portion and a distal end, said proximal end portion adapted to receive a power tool, and a torque transfer unit disposed in said tube assembly transfers torque produced by said power tool to a fastener coupler adjacent said distal end and a centering assembly comprising a tapered member having an enlarged portion and a reduced portion adjacent the fastener coupler which member engages the fastener to center said fastener to said tube, said enlarged portion being closer to said distal end than said reduced portion:
• said tapered member defining a centering axis and continuously extending about the centering axis between the enlarged portion and the reduced portion along the full axial extend thereof;
• and
• a guide assembly mounted at said distal end and having an engagement structure and a fastener channel having a distal end defining an axis at an acute angle to said engagement structure and having a uniform channel diameter which is slightly greater than said maximum diameter and configured to receive said fastener so that when said engagement structure is positioned relative said first member, said fastener is received in said channel through said distal end± said reduced portion guiding said head to engage said fastener coupler, aaet the power tool is energized, said fastener coupler engages said head to rotatably engage said fastener and the power tool drives said fastener through said first member into said second member.