Flat Head Bolts | McMaster-Carr

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14,559 Products

Fastening and Joining

Flat Head Screws

Flat Head Screws

Fit in countersunk holes for a flush finish

Rounded Head Screws

Rounded Head Screws

Sit just above the surface for a low-profile finish and hold tighter than flat head screws

Tapping Screws

Fasten a range of materials together without needing to tap the hole first

Elevator Bolts

Create a flush joint to allow movement in tight spaces such as grain elevators and belting systems

Shoulder Screws

Shoulder Screws

Rotate parts around the cylinder under the head to guide and align them during installation

Plow Bolts

The head sits flush with countersunk holes while the bolt stays in place when tightening a nut

Hex Head Screws

Hex Head Screws

Used with nuts to create a stronger joint than flat and rounded screws

Fastener Assortments

Fastener Assortments

Stay prepared by keeping fasteners in common sizes and materials on hand

Wood Screws

Fasten material to wood or pieces of wood to each other

Tighten and loosen by hand without the need for tools

Set Screws

Exert pressure at the tip to hold parts in place, unlike screws that hold material together with threads

Captive Panel Screws

Captive Panel Screws

Secure panels and enclosures while still having access to them

Drywall Screws

Fasten panels of drywall to materials such as wood, metal, and drywall

Binding Barrels and Screws

Binding Barrels and Screws

Thread together for a low-profile fastener

Single-End Studs

Single-End Studs

Use the unthreaded end as a pivot point, hinge, shaft, or locator pin

Captive Pins

Press into holes in thin materials like panels and circuit boards to permanently join or align them

Anchors

Secure anything from signs to heavy machinery in concrete, brick, and drywall

Spring Plungers

Spring Plungers

Apply accurate, consistent pressure for positioning, indexing, and ejecting parts

Thread Adapters

Thread Adapters

Join threads of a different type, size, and gender

Fabricating and Machining

Drill Bushing Lock Screws

Drill Bushing Lock Screws

Prevent drill bushings from spinning

Locating Pin Lock Screws

Locating Pin Lock Screws

Secure removable locating pins

The quick brown fox jumped over the lazy dog. Pedestal (35" Ht. x 4" Wd. x 4" Dp.)