https://www.acehardware.com/departments/hardware/nuts-and-bolts/hex-bolts/5323340
HILLMAN 3/8 in. D X 6 in. L Zinc Plated Steel Hex Tap Bolt 50 pk Mfr# 221032 - Ace Hardware
Coarse Hex Tap Bolts are machine bolts that have been designed to adhere facing materials to prevent shear movement. Zinc grade 2 hex bolts are recommended for...