Hot Dip Galvanized
Gimlet Point lag screws are installed with a wrench. Fetter Drive and Twist Drive Lag Screws can either be wrenched or driven like a nail for speedier installation without sacrificing any of the holding strength of regular gimlet point lag threads. Twist Drive Lags are furnished with a drive point for additional starting ease and accuracy. This feature is also available on most sizes of Fetter Drive lags.
All Joslyn lag screws have rolled threads. Below the head is an upset shoulder with the same outside diameter as the threads to provide a snug fit in hardware mounting holes.