1) Select the INCORRECT statement about wood screws: the a) Wood screws have gre

Question

1) Select the INCORRECT statement about wood screws: the a) Wood screws have greater holding power than nails of the same diameter th araidrawal value for a screw inserted into the end grain of a imber is the same as for a scrow inserted into side grain c) Wood screws may not be driven with a hammer d) Connections in which wood screws are subject to withdrawal loads should be avoided if possible or wood connectors, which factors have an impact on the connection capacity? Select all that apply: a) Edge and end distances of fasteners b) Strength of steel bolt c) Lumber species d) Angle of load to wood grain e) Duration of loading

Explanation / Answer

1. the allowable withdrawal value for the screw insrted into the end grain of the timber is the same as for a screw inserted into side grain (average ratio of end grain withdrawal to side grain withdrawal is ranged from 52 to 108%)

2. all the factoes mentioned have an impact on the connection capacity

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