8.8 Grade Hot-dip Galvanized Hex Head Bolts, Carbon Steel DIN931 DIN933 GB/T5782 GB/T5783 Hex Bolts

8.8 Grade Hot-dip Galvanized Hex Head Bolts. Carbon steel high tensile strength, hot-dip galvanized surface for superior rust resistance. Comply with DIN931,DIN933,GB/T5782,GB/T5783 standards, OEM & custom sizes available.

<h2>Product Introduction</h2>
8.8 grade hex head bolts made of carbon steel, with quenching & tempering heat treatment. Hot-dip galvanized surface provides excellent long-term anti-corrosion performance.

<h3>Specifications</h3>
Material: Carbon Steel
Surface: Hot-dip Galvanized
Size Range: M6-M36
Standard: DIN931, DIN933, GB/T5782, GB/T5783

<h3>Application & Service</h3>
Suitable for outdoor, bridge, power and heavy engineering projects. Custom sizes and OEM orders are acceptable.
Contact us for quotation.

DIN931 partial‑thread hex head bolt technical drawing

DIN933 Hex Bolt Dimensions (Unit: mm)

SizePitch
da maxds maxds mine mink maxk minr mins maxs min
M1.60.3521.61.463.411.220.980.13.23.02
M20.42.621.864.321.521.260.143.82
M2.50.453.12.52.365.451.821.560.154.82
M30.53.632.866.012.121.880.15.55.32
M3.50.64.13.53.326.582.522.280.265.82
M40.74.743.827.662.922.680.276.78
M50.85.754.828.793.653.350.287.78
M616.865.8211.054.153.850.25109.78
M81.259.287.7814.385.455.150.41312.73
M101.511.2109.7818.96.586.220.41614.73
M121.7513.71211.7321.17.687.320.61816.67
M14215.71413.7324.498.988.620.62220.67
M16217.71615.5726.1710.299.710.62422.16
M182.520.21817.5729.5611.8511.150.62725.16
M202.522.42019.4832.9512.8512.150.83027.16
M222.524.42221.4835.0314.3513.650.83229.16
M24326.42423.4839.5515.3514.650.83633
M27330.42726.4845.217.3516.6514138
M303.533.43029.4850.8519.1218.2814643
M36439.43635.3860.7923.1222.281.25552
M39442.43938.3866.4425.1224.281.26057

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