During the final installation of the bedstrips, be careful when tightening the hidden T-Bolt fasteners. Use a torque wrench and tighten them to 75-100 in-lb maximum. Excessive torque may distort the hidden fastener or the bedstrip. You may wish to use a thread-locking compound on the bolt threads during final assembly. Please note: In this picture, the wood has been "cut away" so you can see how the bolts and bedstrips look underneath where the bolts attach to the cross sill. The bed wood with hidden bolts is also used in this bed, and you can see that bolt head sitting beneath the wood and on top of the cross sill.