You won’t find a better selection of high-quality toggle bolts like this one than what you’ll find at FMW Fasteners

27/64 Heavy Duty Jobber Drill Bit

7/8-14 x 2 3/4 Hex Cap Screw SS 18-8 (A2)

With this specific product

14 x 2 1/2 OlyLog® Log Home Fastener (500)

5/8-11 x 2 1/2 Hex Tap Bolt Silicon Bronze Short Arm Hex Keys Alloy You won’t find a better5 8 11 x 2 1 2 Hex Tap Bolt Silicon Bronze. Silicon Bronze Hex Tap Bolts are similar to low carbon steel in hardness but offer high resistance to corrosive environments such as sea water, gases, sewage and atmospheric conditions. Commonly used in naval construction and power plant applications.