Hex Head Bolt Introduction 

DIN933 hex bolt is one of the commonly used hex bolts. It is available in carbon steel, stainless steel, etc.

Its size is basically the same as the international standard ISO4017 and the Chinese standard GB/T5783.
[njwa_button id="3060"]
Two black carbon steel DIN933 hex head bolts

DIN 933 Hex Head Bolt Details

 SIZE: M5-M56
MATEAIL: Carbon Steel, Stainless Steel
STANDARD: DIN933, EN ISO4017
GRADE: 4.8, 8.8, 10.9, 12.9
SURFACE TREATMENT: ZP, HDG, BLACK, Dacromet
CUSTOMIZED SUPPORT: YES

DIN 933 Hex Head Bolt Specifications

Screw Thread
d
M1.6M2M2.5M3(M3.5)M4M5M6(M7)M8M10M12(M14)M16
PPitch 0.350.40.450.50.60.70.8111.251.51.7522
amax 1.051.21.351.51.82.12.4333.754.55.2566
cmin 0.10.10.10.150.150.150.150.150.150.150.150.150.150.2
max 0.250.250.250.40.40.40.50.50.50.60.60.60.60.8
damax 22.63.13.64.14.75.76.87.89.211.213.715.717.7
dwGrade Amin2.43.24.14.65.15.96.98.99.611.615.617.420.522.5
Grade Bmin-----5.76.78.79.411.415.417.220.122
eGrade Amin3.414.325.456.016.587.668.7911.0512.1214.3818.921.124.4926.75
Grade Bmin-----7.58.6310.8911.9414.218.7220.8823.9126.17
kNominal Size 1.11.41.722.42.83.544.85.36.47.58.810
Grade Amin0.981.281.581.882.282.683.353.854.655.156.227.328.629.82
max1.221.521.822.122.522.923.654.154.955.456.567.688.9810.18
Grade Bmin-----2.63.263.764.565.066.117.218.519.71
max-----33.744.245.045.546.697.799.0910.29
k1min 0.70.91.11.31.61.92.282.633.193.544.285.055.966.8
rmin 0.10.10.10.10.10.20.20.250.250.40.40.60.60.6
smax=nominal size 3.2455.567810111317192224
Grade Amin3.023.824.825.325.826.787.789.7810.7312.7316.7318.6721.6723.67
Grade Bmin-----6.647.649.6410.5712.5716.5718.4821.1623.16
                   
Screw Thread
d
(M18)M20(M22)M24(M27)M30(M33)M36(M39)M42(M45)M48(M52) 
PPitch 2.52.52.5333.53.5444.54.555 
amax 7.57.57.59910.510.5121213.513.51515 
cmin 0.20.20.20.20.20.20.20.20.30.30.30.30.3 
max 0.80.80.80.80.80.80.80.811111 
damax 20.222.424.426.430.433.436.439.442.445.648.652.656.6 
dwGrade Amin25.328.23033.6--------- 
Grade Bmin24.827.729.533.23842.746.551.155.959.964.769.474.2 
eGrade Amin30.1433.5335.7239.98--------- 
Grade Bmin29.5632.9535.0339.5545.250.8555.3760.7966.4471.376.9582.688.25 
kNominal Size 11.512.514151718.72122.52526283033 

Grade A
min11.2812.2813.7814.78--------- 
max11.7212.7214.2215.22--------- 

Grade B
min11.1512.1513.6514.6516.6518.2820.5822.0824.5825.5827.5829.5832.5 
max11.8512.8514.3515.3517.3519.1221.4222.9225.4226.4228.4230.4233.5 
k1min 7.88.59.610.311.712.814.415.517.217.919.320.922.8 
rmin 0.60.80.80.8111111.21.21.61.6 
smax=nominal size 27303236414650556065707580 
Grade Amin26.6729.6731.6135.38--------- 
Grade Bmin26.1529.16313540454953.858.863.168.173.178.1 

Equivalent Standard for DIN 933 Hex Head Bolt - ISO 4017

DIN EN ISO 4017 Hex Head Bolts

Screw Thread
d
M1.6M2M2.5M3(M3.5)M4M5M6M8M10M12(M14)M16(M18)M20
PPitch 0.350.40.450.50.60.70.811.251.51.75222.52.5
amax 1.051.21.351.51.82.12.4344.55.3667.57.5
min 0.350.40.450.50.60.70.811.251.51.75222.52.5
cmax 0.250.250.250.40.40.40.50.50.60.60.60.60.80.80.8
min 0.10.10.10.150.150.150.150.150.150.150.150.150.20.20.2
damax 22.63.13.64.14.75.76.89.211.213.715.717.720.222.4
dwGrade Amin2.273.074.074.575.075.886.888.8811.6314.6316.6319.6422.4925.3428.19
Grade Bmin2.32.953.954.454.955.746.748.7411.4714.4716.4719.152224.8527.7
eGrade Amin3.414.325.456.016.587.668.7911.0514.3817.7720.0323.3626.7530.1433.53
Grade Bmin3.284.185.315.886.447.58.6310.8914.217.5919.8522.7826.1729.5632.95
kNominal Size 1.11.41.722.42.83.545.36.47.58.81011.512.5
Grade Amax1.2251.5251.8252.1252.5252.9253.654.155.456.587.688.9810.1811.71512.715
min0.9751.2751.5751.8752.2752.6753.353.855.156.227.328.629.8211.28512.285
Grade Bmax1.31.61.92.22.633.744.245.546.697.799.0910.2911.8512.85
min0.91.21.51.82.22.63.263.765.066.117.218.519.7111.1512.15
k1Grade Amin0.680.891.11.311.591.872.352.73.614.355.126.036.877.98.6
Grade Bmin0.630.841.051.261.541.822.282.633.544.285.055.966.87.818.51
rmin 0.10.10.10.10.10.20.20.250.40.40.60.60.60.60.8
smax=nominal size 3.2455.56781013161821242730
Grade Amin3.023.824.825.325.826.787.789.7812.7315.7317.7320.6723.6726.6729.67
Grade Bmin2.93.74.75.25.76.647.649.6412.5715.5717.5720.1623.1626.1629.16
 
Screw Thread
d
(M22)M24(M27)M30(M33)M36(M39)M42(M45)M48(M52)M56(M60)M64 
PPitch 2.5333.53.5444.54.5555.55.56 
amax 7.59910.510.5121213.513.5151516.516.518 
min 2.5333.53.5444.54.5555.55.56 
cmax 0.80.80.80.80.80.811111111 
min 0.20.20.20.20.20.20.30.30.30.30.30.30.30.3 
damax 24.426.430.433.436.439.442.445.648.652.656.6636771 
dwGrade Amin31.7133.61------------ 
Grade Bmin31.3533.253842.7546.5551.1155.8659.9564.769.4574.278.6683.4188.16 
eGrade Amin37.7239.98------------ 
Grade Bmin37.2939.5545.250.8555.3760.7966.4471.376.9582.688.2593.5699.21104.86 
kNominal Size 14151718.72122.52526283033353840 
Grade Amax14.21515.215------------ 
min13.78514.785------------ 
Grade Bmax14.3515.3517.3519.1221.4222.9225.4226.4228.4230.4233.535.538.540.5 
min13.6514.6516.6518.2820.5822.0824.5825.5827.5829.5832.534.537.539.5 
k1Grade Amin9.6510.35------------ 
Grade Bmin9.5610.2611.6612.814.4115.4617.2117.9119.3120.7122.7524.1526.2527.65 
rmin 0.80.8111111.21.21.61.6222 
smax=nominal size 3436414650556065707580859095 
Grade Amin33.3835.38------------ 
Grade Bmin333540454953.858.863.168.173.178.182.887.892.8 

FAQs

What are the uses of hex head bolts?

Hex head bolts have a hexagonal head design and are usually used with hex nuts. Hex head bolts are widely used in a variety of fields and applications, some of which include:

1. Machinery manufacturing: hex head bolts are used to connect mechanical parts, such as machine tools, engines, transmission systems, etc. They provide reliable fastening connections so that mechanical equipment can operate properly.

2. Construction and building structures: In construction and building structures, hex head bolts are used to connect important components such as steel structures, bridges, and building frames. Hex head bolts ensure the building's structural stability and safety.

3. Automobile manufacturing: In the automobile manufacturing industry, hex head bolts are used to connect various components of the vehicle, such as engine, chassis, suspension system, etc. Hex head bolts can withstand the stress of high temperature, high pressure and vibration environments while maintaining a strong connection.

4. Aerospace: In the aerospace field, hex head bolts are widely used in manufacturing aircraft, rockets, satellites and other aerospace components. The hex head bolts need to have properties such as lightweight, high strength and corrosion resistance to meet stringent aerospace requirements.

5. Equipment and machinery maintenance: During equipment and machinery maintenance, hex head bolts are often used to replace damaged bolts or tighten them. Hex head bolts are standard fasteners commonly used in repair and maintenance work.

Hex head bolts play an important role in various fields such as industrial production, construction engineering, transportation, etc., and are a key component of connection and fixation.
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