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ISO 225 Pdf standard Specification Download

Date:Jun 18, 2019

BS EN ISO 225 : 2010 standard is for asteners — Bolts, screws, studs and nuts — Symbols and descriptions of dimensions.

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ISO 225 Standard defines the symbols and gives descriptions of the dimensions of bolts, screws, studs and nuts for use in the appropriate product standards and drawings.

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Product types of ISO 225 Standard as follow:

Bolts, screws and studs

Hexagon head products

Hexagon head bolts and screws.

Hexagon head bolts and screws with flange.

Hexagon socket head screws

Cylindrical head

Countersunk head

Button head.

Hexalobular socket head screws.

Cylindrical head

Cheese head

Pan head

Raised countersunk head

Triple square socket head screws

Cylindrical head

Cylindrical head with flange

Raised countersunk head

Cup head square neck bolts

Slotted and cross-recessed head screws

Studs

Set screws.

Headless screws with shank

Ends of parts with external thread (points)

Thread rolling (thread forming) screws

Thread cutting screws

Tapping screws

Drilling screws with tapping screw thread

Nuts

Hexagon nuts

Prevailing torque type nuts

Slotted and castle nuts

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The following referenced documents are indispensable for the application of this document.

ISO 3508, Thread run-outs for fasteners with thread in accordance with ISO 261 and ISO 262

ISO 4753, Fasteners — Ends of parts with external ISO metric thread

ISO 4755, Fasteners — Thread undercuts for external metric ISO threads

ISO 4757, Cross recesses for screws

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