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The basic dimensions are nominal dimensions of a metric thread profile without allowance and tolerances (The thread class defines that). They are based on standard ISO 68-1. The basic dimensions can be used for design.
ISO 724 specifies basic dimensions of metric threads in accordance with ISO 261. Dimensions refer to the basic profile in accordance with ISO 68. The pitch varies from coarse to extra fine with up to 5 different pitches for some dimensions. The thread angle is 60 o and the thread depth is 0.614 x pitch.
2 Φεβ 2021 · Thread Dimensions - Metric Thread Sizes Chart. Here is the metric thread sizes table defines standard metric external thread size M1.6 to M18 per. ANSI/ASME B1.13M-1995. All units in mm. Here we’ll focus on the thread dimensions explained and the standard imperial/metric thread sizes chart.
Metric bolt sizes are manufactured according to strict metric thread dimensions and specifications defined by the ISO standardisation authority to ensure cross-compatibility between mating components. The metric thread size chart below represents the dimensions of metric coarse machine screw threads as defined by ISO standards.
This document specifies the basic dimensions of ISO general purpose metric screw threads according to ISO 261. The values refer to the design profiles according to ISO 68-1. This document is applicable to the metric fastening screw threads.
The following table chart defines standard metric external thread size M1.6 to M18 per. ANSI/ASME B1.13M-1995. These thread sizes and classes represent bolts and screws, as well, as other standard external threads.
Find out the different cross-sectional dimensions of any metric bolt's external thread and nut's internal thread using this thread calculator, given the thread pitch, basic major diameter, and tolerance class details of the threads.
