1/4", Hex

US Fasteners

Hex bolt

Hex bolts

Bolts with hexagonal heads and machine threads for use with a nut or in a tapped hole. Also known as hex cap screws or machine bolts.
Lag bolt

Lag bolts

Large wood screws technically called lag screws.
Anchors

Anchoring products

Fasteners for anchoring in stone, concrete, brick, and drywall, etc.