Flat Head

Also known as / standards: Flat Head Screw · Countersunk Screw · DIN 7991 · DIN 965 · DIN7991 · ISO 10642 · COUNTERSUNK SOCKET SCREW · FLAT HEAD SOCKET CAP · JIS B 1194 · CNS 4558 · ASME B18.3.5M · ISO 7046 · CROSS RECESSED COUNTERSUNK · PHILLIPS FLAT HEAD

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About Flat Head

Countersunk (flat head) screws have a 90 degree cone that sits flush with the surface — nothing protrudes to snag or interfere with a sliding face. Socket drive for torque, cross drive for cost.

Also known as Flat Head Screw · Countersunk Screw · DIN 7991 · DIN 965

Standards ISO 10642 · DIN 7991 · JIS B 1194 · CNS 4558 · ASME B18.3.5M · ISO 7046-1 · ISO 7046-2 · DIN 965 · JIS B 1111 · CNS 4560 · ASME B18.6.7M

Black oxide alloy steel

High strength for machinery and dies.

304 stainless

Corrosion resistant, visible surfaces.

Zinc or nickel plated

Low cost or bright finish.

How to choose

• The countersink must be 90 degrees and deep enough or the head will not seat.
• The cone wedges outwards — watch for splitting in thin sheet or plastic.