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Partially Threaded Galvanized Hexagon Head Bolts DIN931-1 ISO4014 Class 8.8 10.9

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Partially Threaded Galvanized Hexagon Head Bolts DIN931-1 ISO4014 Class 8.8 10.9

Country/Region china
City & Province suzhou
Categories Other Furniture Hardware
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Product Details

DIN931-1 ISO4014 Hexagon Head Bolts Partially Threaded Galvanize Carbon Steel 35K/Alloy Steel 40Cr Class 8.8 10.9

 

DIN931 Hexagonal Head Bolts with Partial Thread are bolts that adhere to the technical specifications set by the Deutsches Institut für Normung (DIN), the German Institute for Standardization. These bolts exhibit several key features and benefits, making them suitable for various engineering applications.

Structural Characteristics:

  • Head Design: The bolts feature a hexagonal head, which allows for easy installation and removal using tools such as wrenches or socket wrenches.
  • Thread Section: The bolts have a partial thread, meaning that only a portion of the shank is threaded. This design is suitable for applications where the bolt needs to pass through a component and be tightened with a nut on the other side.

Standardization and Specifications:

  • DIN931 Standard: The bolts comply with the DIN931 standard, ensuring consistency and reliability in terms of dimensions, materials, and performance.
  • Range of Sizes: They are available in a wide range of thread sizes from M1.6mm to M64mm and shank lengths from L12mm to L500mm, catering to diverse engineering needs.

Materials and Performance:

  • Material Requirements: DIN931 hexagonal head bolts are typically made from high-strength materials such as carbon steel, alloy steel, or stainless steel. These materials offer excellent mechanical properties, corrosion resistance, and durability.
  • Performance Grades: Depending on the material and size, the bolts have various performance grades, such as 8.8 and 10.9 for steel bolts and A2-70 and A4-70 for stainless steel bolts.

Application Areas:

  • DIN931 hexagonal head bolts with partial thread find applications in various industries, including machinery, automotive, shipbuilding, and construction. They are used for fastening structural components, connecting pipes, installing equipment, and other purposes, ensuring secure and reliable connections.

Advantages:

  • Easy Installation and Removal: The hexagonal head design facilitates efficient rotation using tools, improving work efficiency.
  • Flexibility: The partial thread design allows for flexibility in different connection scenarios.
  • Reliability and Durability: The use of high-strength materials and adherence to DIN931 standards ensures the bolts' reliability and durability, meeting the demands of various engineering applications.

Thread Size
d
M1.6M2M2.5M3(M3.5)M4M5M6(M7)M8M10M12
PThread Pitch0.350.40.450.50.60.70.8111.251.51.75
bRef.L≤12591011121314161820222630
125<L≤200------222426283236
L>200----------4549
cmin0.10.10.10.150.150.150.150.150.150.150.150.15
max0.250.250.250.40.40.40.50.50.50.60.60.6
damax22.63.13.64.14.75.76.87.89.211.213.7
dsmax=nominal size1.622.533.5456781012
minGrade A1.461.862.362.863.323.824.825.826.787.789.7811.73
Grade B------------
dwminGrade A2.43.24.14.65.15.96.98.99.811.615.617.4
Grade B------------
eminGrade A3.414.325.456.016.587.668.7911.0512.1214.3818.921.1
Grade B------------
kNominal Size1.11.41.722.42.83.544.85.36.47.5
Grade Amin0.981.281.581.882.282.683.353.854.655.156.227.32
max1.221.521.822.122.522.923.654.154.955.456.587.68
Grade Bmin------------
max------------
k1min0.70.91.11.31.61.92.282.633.193.544.285.05
rmin0.10.10.10.10.10.20.20.250.250.40.40.6
smax=nominal size3.2455.56781011131719
minGrade A3.023.824.825.325.826.787.789.7810.7312.7316.7318.67
Grade B------------
Length of Thread b   ------------

 

Thread Size
d
(M14)M16(M18)M20(M22)M24(M27)M30(M33)M36(M39)
PThread Pitch222.52.52.5333.53.544
bRef.L≤1253438424650546066727884
125<L≤2004044485256606672788490
L>20053576165697379859197103
cmin0.150.20.20.20.20.20.20.20.20.20.3
max0.60.80.80.80.80.80.80.80.80.81
damax15.717.720.222.424.426.430.433.436.439.442.4
dsmax=nominal size1416182022242730333639
minGrade A13.7315.7317.7319.6721.6723.67-----
Grade B-15.5717.5719.4821.4823.4826.4829.4832.3835.3838.38
dwminGrade A20.522.525.328.23033.6-----
Grade B-2224.827.729.533.23842.746.651.155.9
eminGrade A24.4926.7530.1433.5335.7239.98-----
Grade B-26.1729.5632.9535.0339.5545.250.8555.3760.7966.44
kNominal Size8.81011.512.514151718.72122.525
Grade Amin8.629.8211.2812.2813.7814.78-----
max8.9810.1811.7212.7214.2215.22-----
Grade Bmin-9.7111.1512.1513.6514.6516.6518.2820.5822.0824.58
max-10.2911.8512.8514.3515.3517.3519.1221.4222.9225.42
k1min5.966.87.88.59.610.311.712.814.415.517.2
rmin0.60.60.60.80.80.811111
smax=nominal size2224273032364146505560
minGrade A21.6723.6726.6729.6731.6135.38-----
Grade B-23.1626.1629.16313540454953.858.8
Length of Thread b   -----------

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