Standard Metric Hex Bolt Sizes and Thread Pitches

1 Standard Metric Hex Bolt Sizesand Thread PitchesScale Check: After printing, measure ruler above to ensure correct scale fastener shoppingmade easy0123456 inchesCopyright 2000-2007 Bolt Depot Inc. PRINTABLE fastener TOOLS SERIES4mm x x x x x x x x x x x x x x x x (Note: Head Sizes may differ from what is shows due to differences between Metric standards)mm102030405060708090100 Measure length from under the head to the end of the Metric Machine Screw SizesScale Check: After printing, measure ruler above to ensure correct scale fastener shoppingmade easy0123456 inchesCopyright 2000-2007 Bolt Depot Inc. PRINTABLE fastener TOOLS SERIES4mm x x x x Pan Head -Measure length from under the head to the end of the Flat Head -Measure length from the top of the head to the end of the Type chart fastener shoppingmade easyCopyright 2000-2010 Bolt Depot Inc.

2 PRINTABLE fastener TOOLS SERIESF astener CategoriesWood ScrewsMachine ScrewsThread CuttingMachine ScrewsSheet Metal ScrewsSelf Drilling SMSS crews with a smooth shank and tapered point for use in wood. Abbreviated WSScrews with threads for use with a nut or tapped hole. Abbreviated MSMachine screws with a Thread cutting (self tapping) point. Fully threaded screws with a point for use in sheet metal. Abbreviated SMSA sheet metal screw with a self drilling BoltsCarriage BoltsLag BoltsSet ScrewsBolts with a hexagonal head with threads for use with a nut or tapped hole. Abbreviated HHMB or with a smooth rounded head that has a small square section with a wood Thread and pointed tip. Abbreviated screws with no head for screwing all the way into threaded ScrewsEye BoltsEye LagsU-BoltsSocket screws, also known as Allen Head, are fastened with a hex Allen bolt with a circular ring on the head end.

3 Used for attaching a rope or BoltsJ shaped bolts are used for tie-downs or as an open eye bolts (also known as stripper bolts) are used to create a pivot BoltsElevator bolts are often used in conveyor systems. They have a large, flat to an eye bolt but with wood threads instead of machine in U shape for attaching to pipe or other round surfaces. Also available with a square Type chart fastener shoppingmade easyCopyright 2000-2010 Bolt Depot Inc. PRINTABLE fastener TOOLS SERIESHead StylesFlatA countersunk head with a flat FHOvalA countersunk head with a rounded OH or OVPanA slightly rounded head with short vertical PNTrussAn extra wide head with a rounded domed RHHexA hexagonal headAbbreviated HH or HXSocket CapA small cylindrical head using a socket low-profile rounded head using a socket WasherA hex head with built in Hex WasherA hex head with built in washer and a Categories (continued)Mating ScrewsMating screws have a shoulder that matches the diameter of the sex bolts they are used BoltsSex bolts ( barrel nuts or Chicago bolts)

4 Have a female Thread and are used for through bolting applications where a head is desired on both sides of the BoltsHanger bolts have wood Thread on one end and machine Thread on the other endFastener Type chart fastener shoppingmade easyCopyright 2000-2010 Bolt Depot Inc. PRINTABLE fastener TOOLS SERIESD rive TypesPhillips and FrearsonAn X-shaped PHOne WayInstalls with a normal slotted driver but can not be removed without special known as Robertson SQ or SD. TorxA six-pointed star pattern, specifically designed to prevent cam-out and stripped slot in the SLCombinationA combination of slotted and Phillips comboSocket, Hex or AllenA hexagonal hole for use with an Allen TypesFlatA flat washer, used to distribute load. Available in SAE, USS and other oversize flat washer used to further distribute load especially on soft washer used to obtain a finished look.

5 Usually used with oval head LockThe most common style of washer used to prevent nuts and bolts from backing Tooth LockA washer with external teeth . Used to prevent nuts and bolts from backing , large diameter, cast iron washers with a curved or sculpted appearance. Typically used in dock and wood Tooth LockA washer with internal teeth . Used to prevent nuts and bolts from backing square shaped washers have a larger outside diameter and are thicker than Type chart fastener shoppingmade easyCopyright 2000-2010 Bolt Depot Inc. PRINTABLE fastener TOOLS SERIESNut TypesHexA six sided nut. Also referred to as a Finished Hex HexA heavier pattern version of a Standard hex Insert LockA nut with a nylon insert to prevent backing off. Also referred to as a hex nut with a reduced Insert Jam LockA nylock nut with a reduced nut with wings for hand nut with a domed top over the end of the nuts are a high crown type of cap nut, used for nut with a built in washer like nut designed to be driven into wood to create a threaded nuts are long nuts used to connect pieces of threaded rod or other male four sided Torque LockA non-reversible lock nut used for high temperature or KepA nut with an attached free-spinning external tooth lock nuts are used in conjunction with a cotter pin on drilled shank fasteners to prevent nuts are used in conjunction with a cotter pin on drilled shank fasteners to prevent and Metric Thread SizesScale Check: After printing, measure ruler above to ensure correct scale fastener shoppingmade easy0123456 inchesCopyright 2000-2007 Bolt Depot Inc.

6 PRINTABLE fastener TOOLS SERIESUS Thread SizesMetric Thread Pitches7 mm8 tpi9 tpi10 tpi11 tpi12 tpi13 tpi14 tpi16 tpi18 tpi20 tpi24 tpi28 tpi32 tpi40 tpiStandard US Hex Bolt Sizesand Thread PitchesScale Check: After printing, measure ruler above to ensure correct scale fastener shoppingmade easy0123456 inchesCopyright 2000-2010 Bolt Depot Inc. PRINTABLE fastener TOOLS SERIES1/4 -201/4 -285/16 -185/16 -243/8 -163/8 -241/2 -131/2 -209/16 -129/16 -185/8 -115/8 -187/16 -147/16 -20 Coarse ThreadFine ThreadStandard US Machine Screw SizesScale Check: After printing, measure ruler above to ensure correct scale fastener shoppingmade easy0123456 inchesCopyright 2000-2007 Bolt Depot Inc. PRINTABLE fastener TOOLS SERIES4 -406 -328 -3210 -3210 -2412 -241/4 -205/16 -183/8 -16