Wholesale DIN 960:1990 Fine Thread Hex Head Bolt

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DIN 960:1990 Fine Thread Hex Head Bolt

DIN 960:1990 Fine Thread Hex Head Bolt uses a fine thread profile for joints requiring more precise preload control, higher engagement accuracy, and improved resistance to loosening. More engaged threads within a limited length support finer adjustment.

The hex head can be installed with standard tools and is used in automotive components, transmission mechanisms, hydraulic equipment, adjustment brackets, and vibration-prone mechanical connections. Fine threads are also useful where wall thickness or thread depth is limited.

Strength class, material, and finish can be selected according to load level and environmental conditions. For high-frequency vibration or long-running equipment, it can be combined with locking nuts, spring washers, or thread-locking solutions.

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Dimensions unit: mm

Thread size M8 M10 M12 (M14) M16 (M18) M20 (M22) M24 (M27) M30 (M33) M36 (M39)
d
P Pitch Fine Teeth 1 1 1 1.5 1.5 1.5 2 1.5 2 2 2 2 2 3 3
Fine Teeth 2 - 1.25 1.25 - - 1.5 2 1.5 1.5 - - - - -
b L≤125 22 26 30 34 38 42 46 50 54 60 66 72 78 84
125＜L≤200 28 32 36 40 44 48 52 56 60 66 72 78 84 90
L＞200 41 45 49 53 57 61 65 69 73 79 85 91 97 103
c Min. 0.15 0.15 0.15 0.15 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.3
Max. 0.6 0.6 0.6 0.6 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 1
da Max. 9.2 11.2 13.7 15.7 17.7 20.2 22.4 24.4 26.4 30.4 33.4 36.4 39.4 42.4
ds Max. 8 10 12 14 16 18 20 22 24 27 30 33 36 39
Class A Min. 7.78 9.78 11.73 13.73 15.73 17.73 19.67 21.67 23.67 - - - - -
Class B Min. 7.64 9.64 11.57 13.57 15.57 17.57 19.48 21.48 23.48 26.48 29.48 32.38 35.38 38.38
dw Class A Min. 11.6 15.6 17.4 20.5 22.5 25.3 28.2 30 33.6 - - - - -
Class B Min. 11.4 15.4 17.2 20.1 22 24.8 27.7 29.5 33.2 38 42.7 46.6 51.1 55.9
e Class A Min. 14.38 18.9 21.1 24.49 26.75 30.14 33.53 35.72 39.98 - - - - -
Class B Min. 14.2 18.72 20.88 23.91 26.17 29.56 32.95 35.03 39.55 45.2 50.85 55.37 60.79 66.44
k Nominal  5.3 6.4 7.5 8.8 10 11.5 12.5 14 15 17 18.7 21 22.5 25
Class A Min. 5.15 6.22 7.32 8.62 9.82 11.28 12.28 13.78 14.78 - - - - -
Max. 5.45 6.58 7.68 8.98 10.18 11.72 12.72 14.22 15.22 - - - - -
Class B Min. 5.06 6.11 7.21 8.51 9.71 11.15 12.15 13.65 14.65 16.65 18.28 20.58 22.08 24.58
Max. 5.54 6.69 7.79 9.09 10.29 11.85 12.85 14.35 15.35 17.35 19.12 21.42 22.92 25.42
k1 Min. 3.54 4.28 5.05 5.96 6.8 7.8 8.5 9.6 10.3 11.7 12.8 14.4 15.5 17.2
r Min. 0.4 0.4 0.6 0.6 0.6 0.6 0.8 0.8 0.8 1 1 1 1 1
s Max.=Nominal  13 17 19 22 24 27 30 32 36 41 46 50 55 60
Class A Min. 12.73 16.73 18.67 21.67 23.67 26.67 29.67 31.61 35.38 - - - - -
Class B Min. 12.57 16.57 18.48 21.16 23.16 26.16 29.16 31 35 40 45 49 53.8 58.8
Thousand pieces of steel weigh ≈kg  - - - - - - - - - - - - - -
Thread length b - - - - - - - - - - - - - -

Thread size M42 (M45) M48 (M52) M56 (M60) M64 (M68) M72 (M76) M80 M90 M100
d
P Pitch Fine Teeth 1 3 3 3 3 4 4 4 4 4 4 4 4 4
Fine Teeth 2 - - - - - - - - - - - - -
b L≤125 90 96 102 - - - - - - - - - -
125＜L≤200 96 102 108 116 124 132 140 148 158 164 172 192 -
L＞200 109 115 121 129 137 145 153 161 169 177 185 205 225
c Min. 0.3 0.3 0.3 0.3 - - - - - - - - -
Max. 1 1 1 1 1 1 1 1 1 1 2 2 2
da Max. 45.6 48.6 52.6 56.6 63 67 71 75 79 83 87 97 108
ds Max. 42 45 48 52 56 60 64 68 72 76 80 90 100
Class A Min. - - - - - - - - - - - - -
Class B Min. 41.38 44.38 47.38 51.26 55.26 59.26 63.26 67.26 71.26 75.26 79.26 89.13 99.13
dw Class A Min. - - - - - - - - - - - - -
Class B Min. 59.9 64.7 69.4 74.2 78.7 83.4 88.2 92.9 97.7 102.4 107.2 121.1 135.4
e Class A Min. - - - - - - - - - - - - -
Class B Min. 71.3 76.95 82.6 88.25 93.56 99.21 104.86 110.51 116.16 121.81 127.46 144.08 161.03
k Nominal  26 28 30 33 35 38 40 43 45 48 50 57 63
Class A Min. - - - - - - - - - - - - -
Max. - - - - - - - - - - - - -
Class B Min. 25.58 27.58 29.58 32.5 34.5 37.5 39.5 42.5 44.5 47.5 49.5 56.4 62.4
Max. 26.42 28.42 30.42 33.5 35.5 38.5 40.5 43.5 45.5 48.5 50.5 57.6 63.6
k1 Min. 17.9 19.3 20.9 22.8 24.2 26.2 27.6 29.8 31.2 33.2 34.6 39.5 43.7
r Min. 1.2 1.2 1.6 1.6 2 2 2 2 2 2 2 2.5 2.5
s Max.=Nominal  65 70 75 80 85 90 95 100 105 110 115 130 145
Class A Min. - - - - - - - - - - - - -
Class B Min. 63.1 68.1 73.1 78.1 82.8 87.8 92.8 97.8 102.8 107.8 112.8 127.5 142.5
Thousand pieces of steel weigh ≈kg - - - - - - - - - - - - -
Thread length b - - - - - - - - - - - - -

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  • 1. How soon can I expect a reply after sending an inquiry?

    A: We take every inquiry seriously. On working days, we will respond within 12 hours after receiving your inquiry.

  • 2. What products do you mainly offer?

    A: We focus on the production of fasteners made of carbon steel, stainless steel, and low-alloy steel. We are a direct manufacturer with independent production capacity. DIN 960:1990 Fine Thread Hex Head Bolt Factory. We own several fastener manufacturing facilities and have an international sales department, providing full-process services from production to export.

  • 3. Do you support customized production?

    A: Customized production is our core business. We can develop and manufacture products based on the drawings or samples you provide.

  • 4. Do you produce standard parts?

    A: Yes. In addition to custom products, we also produce general construction machinery parts (GET parts) for equipment such as excavators, including bucket teeth, tooth holders, corner blades, pins, clips, bolts and nuts. DIN 960:1990 Fine Thread Hex Head Bolt Wholesale.

  • 5. What is your production capacity?

    A: We have 12 energy-efficient and environmentally friendly modern production lines (including one fully automatic shell molding line and four heat treatment lines), with an annual production capacity exceeding 20,000 tons, enabling us to steadily meet various order requirements.

  • 6. What are your payment terms?

    A: Trade terms (such as FOB, CIF, etc.) are confirmed when quoting. For batch production, we typically require a 30% deposit, with the balance paid against the copy of the bill of lading. T/T is the main payment method accepted, and L/C can also be negotiated.

  • 7. How is the shipment arranged?

    A: We are only 35 km away from Shanghai Port and Ningbo Port, so sea freight is the main mode of transportation, which is convenient and efficient. For urgent deliveries, we can also arrange air freight via Ningbo or Shanghai airports.

Better Fastener Industry Co., Ltd.

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BETTER FASTENER INDUSTRY CO., LTD.

Better Fastener is a professional fastener enterprise specializing in the manufacturing of steel washers, stainless steel washers, spring washers and sealingwashers. Founded in 2001 as a washer factory, the company expanded into a comprehensive enterprise integrating washers, nuts, bolts, spring nuts and other fastener products in 2010. DIN 960:1990 Fine Thread Hex Head Bolt Suppliers in China.

The company positions itself as a provider of comprehensive one-stop services for customers, relying on technological R&D, industrial investment and trade distribution.

With an experienced professional team and a sound sales network, Better Fastener has achieved excellent sales performance in both domestic and foreign markets,and has grown into one of the competitive manufacturers and suppliers in China's industrial fastener industry.

Better Fastener is committed to becoming a trusted fastener supplier for customers with reliable product quality, reasonable prices and on-time delivery

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