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M8 x 40mm Hex Bolt Part Thread in Bright Zinc Plate 10.9 - DIN 931

The most common type of fastener, a hex head bolt is designed to be tightened with a standard spanner or ratchet and socket. Popularly used in all assemblies, a standard hex bolt is a staple across the world. Manufactured to ISO 4014 or DIN 931, and therefore includes an unthreaded section of the shaft. A hex drive permits a greater torque load to be applied to the joint over most other drive types. Please note that due to manufacturing limitations, all nylon variants of these items are only "similar to" and not "in absolute accordance with" the standard specified.
Hex Head Bolts DIN 931 (ISO 4014) in BZP-10.9 image
technical drawing of Hex Head Bolts DIN 931 (ISO 4014)
Technical Summary
d nominal diameter M8
thread pitch thread pitch 1.25
b min. <= 125 min. thread (bolt lengths <= 125) 22
b min. > 125, <=200 min. thread (bolt lengths > 125 , <= 200) 28
b min. > 200 min. thread (bolt lengths > 200) -
s drive size 13
k min. minimum head height 5.15
e width across corners 14.38
Standard DIN 931
all dimensions in millimetres (mm)
html graphic DIN 931 Standard HTML
pdf graphic DIN 931 Standard PDF
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Description Sale Qtys Qty Price Breakdown Despatch Estimate
M8 x 40mm Hex Bolt Part Thread in Bright Zinc Plate 10.9
WF21437
£1.62
M8 x 40mm Hex Bolt Part Thread in Bright Zinc Plate 10.9   WF21437
£1.62
Prices are subject to quantity discounts based on a sliding scale. Enter the desired quantity in the relevant box in the table above. This will automatically calculate a line price indicating the applicable rate for the quantities selected. All prices shown exclude VAT.
technical drawing of Hex Head Bolts DIN 931 (ISO 4014)
Technical Summary
d nominal diameter M8
thread pitch thread pitch 1.25
b min. <= 125 min. thread (bolt lengths <= 125) 22
b min. > 125, <=200 min. thread (bolt lengths > 125 , <= 200) 28
b min. > 200 min. thread (bolt lengths > 200) -
s drive size 13
k min. minimum head height 5.15
e width across corners 14.38
Standard DIN 931
all dimensions in millimetres (mm)
html graphic DIN 931 Standard HTML
pdf graphic DIN 931 Standard PDF
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