These glass-filled nylon mounts are engineered to give all the support of an aluminum mount with half the weight. This is a long mount to fit .60-.78 size engines. Mounting hardware is supplied, and a NOSE GEAR HOLE IS PROVIDED. This is a square base mount, which offers the greatest amount of firewall contact in large-nosed planes. This mount has a brace molded in that goes across the entire length of the bottom of the arms. INCLUDES: one glass-filled nylon mount (with hole to mount nose gear) four #6 x 7/8" sheet metal screws (to attach mount to firewall) SPECS: width between arms: 1.67" width of arm: 0.39" length of arms only: 3.58" base thickness: 0.38" REQUIRES: drilling holes in mount screws to attach engine to mount NMH 3-28-99