https://www.acehardware.com/departments/hardware/nuts-and-bolts/nuts/54824
HILLMAN 1/4-20 in. Zinc-Plated Steel USS Hex Nut 1 pk Mfr# 660000 - Ace Hardware
Grade 2 Hex Nuts are to be used with machine bolts to adhere facing materials in order to prevent tension and shear movement. Zinc grade 2 steel hex nuts are...