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KEO Counterbore: For #10 Screw, 1/64" Oversized, 21/64 in Bore Dia - Oversized Built-in-Pilot Counterbores
KEOOversized Built-in-Pilot Counterbores

KEO Counterbore: For #10 Screw, 1/64" Oversized, 21/64 in Bore Dia

The KEO Counterbore: For #10 Screw is an oversized built-in-pilot counterbore from KEO. It features a 21/64 in bore diameter and a 0.205 in pilot diameter, with a 1/64" oversized specification. This product is…

SKU 3G-OTH-184256

Brand
KEO
Item
Counterbore: For #10 Screw, 1/64" Oversized, 21/64 in Bore Dia
Category
Oversized Built-in-Pilot Counterbores
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Technical Specifications

KEO
Manufacturer Part Number
902-000-320
Bore Dia
21/64 in
Oversized
1/64"
Pilot Dia
0.205 in
Counterbore Type
Oversized
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KEO Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The KEO Counterbore: For #10 Screw is an oversized built-in-pilot counterbore from KEO. It features a 21/64 in bore diameter and a 0.205 in pilot diameter, with a 1/64" oversized specification. This product is identified by manufacturer part number 902-000-320.

Frequently Asked Questions

What is the KEO oversized counterbore used for?

The KEO oversized counterbore is used to create a flat-bottomed recess for a #10 screw head, accommodating a 1/64" oversized fit. It is commonly applied in metalworking and machining operations where precise screw seating is required, ensuring flush assembly in industrial equipment.

What are the specifications of the KEO counterbore 902-000-320?

The KEO counterbore 902-000-320 has a 21/64 in bore diameter and a 0.205 in pilot diameter. It is designed for #10 screws with a 1/64" oversized specification. This built-in-pilot counterbore is manufactured by KEO and is identified by MPN 902-000-320.

Where to buy KEO counterbore 902-000-320 worldwide?

You can source the KEO counterbore 902-000-320 through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time on this KEO tool.

How to select the correct KEO counterbore for a #10 screw?

To select the correct KEO counterbore, match the pilot diameter to the screw's clearance hole and the bore diameter to the screw head size. For a #10 screw, the KEO 902-000-320 uses a 0.205 in pilot and 21/64 in bore with a 1/64" oversized allowance. Always verify dimensions against your fastener specifications.

Used in

Common applications for KEO
Metalworking — KEO plain-tip center drills for creating accurate starting points in lathe operations
Automotive manufacturing — KEO bell-tip center drills for countersinking holes in engine components
Aerospace machining — KEO radius-tip center drills for reducing stress risers in critical parts
General machining — KEO keyseat cutters for milling keyways in shafts and gears
Tool and die making — KEO TiN-coated center drills for extended tool life in hardened steels
Precision engineering — KEO cobalt center drills for high-temperature alloy applications

KEO Products

3G Electric supplies KEO oversized built-in-pilot counterbores. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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