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Threaded holes must be of specific size to accommodate standard screws. This table shows US standard screw sizes on one page, and metric screw sizes on the next. "Clearance" holes are made with larger drill bits, and are designed to let the threaded fastener pass through the hole without engaging any threads [http://makerspace.tulane.edu/index.php/File:TapDrillSizes.pdf Drill sizes for threaded fasteners] | Threaded holes must be of specific size to accommodate standard screws. This table shows US standard screw sizes on one page, and metric screw sizes on the next. "Clearance" holes are made with larger drill bits, and are designed to let the threaded fastener pass through the hole without engaging any threads [http://makerspace.tulane.edu/index.php/File:TapDrillSizes.pdf Drill sizes for threaded fasteners] | ||
Drill bits are labeled with 4 different size standards -- letters A-Z; numbers 1-80; fractional inches; and metric. This table shows all 4, with equivalencies. The range is from 0.014" to 1.000" [http://makerspace.tulane.edu/index.php/File:Drill_sizes.pdf Size and equivalency for standard drill bits] | |||
[http://makerspace.tulane.edu/index.php/File:Drill_sizes.pdf Size and equivalency for standard drill bits] | |||
===Books and Magazines=== | ===Books and Magazines=== | ||
Revision as of 20:08, 9 January 2016
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Tables for holes and fasteners
Threaded holes must be of specific size to accommodate standard screws. This table shows US standard screw sizes on one page, and metric screw sizes on the next. "Clearance" holes are made with larger drill bits, and are designed to let the threaded fastener pass through the hole without engaging any threads Drill sizes for threaded fasteners
Drill bits are labeled with 4 different size standards -- letters A-Z; numbers 1-80; fractional inches; and metric. This table shows all 4, with equivalencies. The range is from 0.014" to 1.000" Size and equivalency for standard drill bits