Bellcore Specification 6281. Can either be wrenched or driven like a nail for speedier installation without sacrificing any of the holding strength of gimlet point regular threads.Furnished with a drive point for additional starting ease and accuracy. Constructed of high quality steel, hot-dip galvanized.
LAG SCREW TWIST DRIVE H-J8754-1-2TP 1/2X 4-1/2"