DIN 931 Hex Cap Screws- Partial Thread
This page provides a reference guide to DIN 931 bolt diameters used in machinery, equipment and industrial maintenance applications. DIN 931 specifies partially threaded hex head bolts designed to provide improved alignment and shear strength in load-bearing connections.
Selecting the correct bolt diameter ensures proper fit, reliable fastening and safe equipment operation.
DIN 931 bolts are widely used in mechanical assemblies where strength and alignment are critical.
DIN 931 defines:
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Partially threaded metric hex bolts
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Standard thread pitch by diameter
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Hex head dimensions
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Mechanical strength requirements
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Manufacturing tolerances
These bolts feature a partially threaded shank that improves load distribution and shear resistance in structural connections.
