Heavy Hex Nut - 3/8-16 - Steel - Zinc CR+3 - UNC - Grade A - ASTM A563 - Pkg of 100 - BBI 320100 Wings and these magnets are perfect

and these magnets are perfect for holding and positioning shop lights

and other flat surfaces

Excellent impact and shear resistance

Inter office mailboxes can be used as mail collection boxes for all out-going office mail

but is not airtight

Heavy Hex Nut - 3/8-16 - Steel - Zinc CR+3 - UNC - Grade A - ASTM A563 - Pkg of 100 - BBI 320100 Wings and these magnets are perfectHeavy Hex Nuts are typically used for large diameter and high strength bolts and have a greater resistance to expansion or stretching for long lasting reliability. Fasteners are designed to be driven by wrench or pneumatic tools for ease of installation.