Stainless Steel - Torx Drive Trim Head Screws screw-type-self-tapping 250 – is the grip

250 – is the grip range of the rivet (the minimum and maximum thickness of material the rivet will fasten)

300 Socket Size: 22mm Tensile Strength

These large flange dome head aluminum rivets provide greater holding power and come in a variety of diameter sizes and grip range

The length of a hex bolt is determined by measuring from under the head of the bolt to the base of the threads

Stainless Steel - Torx Drive Trim Head Screws screw-type-self-tapping 250 – is the gripStainless Steel Torx Drive Trim Head Screws: A 18. 8 Stainless Steel countersunk flat head of a width 1 3 less than a standard bugle head drywall screw. Has a recessed torx drive. The last few threads of the screw taper to an extra sharp point with a groove cut out (Type 17 Point) which enables the screw to drive better without pre drilling a pilot hole. Superior corrosion resistance for exterior applications, including decks, siding and gazebos.