m12 bolt hole size Nominal Drill Size Hole Diameter Nominal Drill Size Hole Diameter Nominal Drill Size Hole Diameter Min Max Min Max Min Max M12 13 5 13 5 13 77 13 13 13 18 14 5 14 5 14 93 M14 15 5 15 5 15 77 15 15 15 18 16 5 16 5 16 93 M16 17 5 17 5 17 77 17 17 17 18 18 5 18 5 19 02 M20 22 22 22 33 21 21 21 21 24
Deciding if the hole should have a close normal or loose fit depends on the scope of the project For example a looser fit simplifies the assembly process and a closer fit allows for tighter tolerances Use the table below to determine the clearance hole size for For typical coarse pitch thread bolts the standard sizes are M3 M3 5 M4 M5 M6 M7 M8 M10 M12 M14 M16 M18 M20 M22 M24 M27 M30 M33 M36 M39 Width of nut across flats The width of the hexagon nuts across flats s is specified in ISO 898 2 Table A 1 for bolt sizes M5 to M39 Hole diameter
m12 bolt hole size
m12 bolt hole size
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Mechanical Clearance Holes For Metric Screws
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M12 20 M12 200 304 Stainless Hexagon Head Cap Bolts Hex Machine Screw
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Screw Size Major Dia mm mm per Thread Drill Size Closest Imperial Drill Size Closest Imperial Drill Size Closest Imperial M12 x 1 50 12 1 50 10 50 Z 1 00 7 16 M12 x 1 25 12 1 25 10 8 27 64 11 20 7 16 M14 x 2 14 2 12 15 32 Use our bolt size chart and full guide to learn how to easily look up bolt hole sizes and ensure correct dimensions for your home and building projects
Metric Threads Clearance Holes and Tapping Drill Sizes Size Nominal Diameter mm Pitch mm Clearance Hole mm Tap Drill Standard Pitch mm Fine Medium Coarse 1 6 0 35 1 7 1 8 2 1 8 0 35 2 0 2 0 40 2 2 2 25 2 6 2 2 0 45 2 45 2 5 0 45 2 7 2 8 3 1 3 0 50 3 2 3 35 3 6 3 5 0 60 3 9 4 0 70 4 3 4 5 4 8 4 5 0 Metric clearance hole calculator for bolts and screws to calculate the recommended clearance hole sizes from M1 6 through M64 in three classes of clearance using close normal and loose fit category
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M12 1 25 Fine Thread Grade 12 9 Hex Socket Head Cap Screw Allen Bolt
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Industrial Press Inc ASME B18 2 8 1999 Clearance holes for bolts screws and studs Clearance hole chart for inch bolts and screws Drill size and hole diameter for normal close and loose fit classes are tabulated The metric thread size chart below represents the dimensions of metric coarse machine screw threads as de ned by ISO standards Please note that these gures relate to product design and are always implemented with metric thread tolerances in mind
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M12 X 100 304 Stainless Steel Countersunk Socket Head Screw Box Of 25
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m12 bolt hole size - Metric Threads Clearance Holes and Tapping Drill Sizes Size Nominal Diameter mm Pitch mm Clearance Hole mm Tap Drill Standard Pitch mm Fine Medium Coarse 1 6 0 35 1 7 1 8 2 1 8 0 35 2 0 2 0 40 2 2 2 25 2 6 2 2 0 45 2 45 2 5 0 45 2 7 2 8 3 1 3 0 50 3 2 3 35 3 6 3 5 0 60 3 9 4 0 70 4 3 4 5 4 8 4 5 0