Wholesale JIS B 1183:2010 Acorn Assembly Nut

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JIS B 1183:2010 Acorn Assembly Nut

JIS B 1183:2010 Acorn Assembly Nut is suitable for Japanese-standard connections requiring end protection and appearance coverage. The assembly-style design can improve installation efficiency in selected applications while the cap form conceals the thread end.

This product can be used on visible mechanical parts, vehicle accessories, furniture hardware, guardrails, and equipment panels. The capped structure reduces the risk of contact with exposed threads and helps prevent dust or debris from entering the thread end.

Materials and surface treatments can be selected according to matching thread, appearance requirements, and corrosion environment, making it suitable for Japanese-standard projects requiring consistency and finished quality.

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Dimensions unit: mm

Thread size d M4 M5 M6 M8 M10 M12 (M14) M16 (M18)
P Pitch Coarse teeth  0.7 0.8 1 1.25 1.5 1.75 2 2 2.5
Fine Teeth - - - 1 1.25 1.25 1.5 1.5 1.5
m2 Nominal 6.2 7.5 9.5 12.5 15.5 18.5 21 24 27
Max. 6.45 7.75 9.75 12.8 15.8 18.8 21.3 24.4 27.4
Min. 5.95 7.25 9.25 12.2 15.2 18.2 20.7 23.6 26.6
m Max. 3.2 4 5 6.5 8 10 11 13 15
Min. 2.9 3.7 4.7 6.14 7.64 9.64 10.57 12.57 14.57
s Max. 7 8 10 13 17 19 22 24 27
Min. 6.8 7.8 9.8 12.75 16.75 18.65 21.65 23.65 26.65
b Nominal 3.2 4 5 6.5 8 10 11 13 15
A Min. 5.6 6.6 8.5 11.5 14.5 16.5 19.5 21.5 23.5
t2 Min. 0.6 0.6 0.6 0.8 1 1.2 1.6 1.6 1.6
e ≈ 8.1 9.2 11.5 15 19.6 21.9 25.4 27.7 31.2
dw ≈ 6.8 7.8 9.8 12.5 16.5 18 21 23 26
R ≈ 3 3.5 4.5 6.5 7.5 8 10 11 12
r ≈ 0.5 0.5 0.5 0.5 0.5 1 1 1 1

Thread size d M20 (M22) M24 (M27) M30 (M33) M36 (M39)
P Pitch Coarse teeth  2.5 2.5 3 3 3.5 3.5 4 4
Fine Teeth 1.5 1.5 2 2 2 2 3 3
m2 Nominal 29 32.5 35.5 41 45 49 54.5 59
Max. 29.4 32.9 35.9 41.5 45.5 49.5 55 59.5
Min. 28.6 32.1 35.1 40.5 44.5 48.5 54 58.5
m Max. 16 18 19 22 24 26 29 31
Min. 15.57 17.57 18.48 21.48 23.48 25.48 28.48 30.38
s Max. 30 32 36 41 46 50 55 60
Min. 29.65 31.6 35.6 40.6 45.6 49.6 54.55 59.55
b Nominal 16 18 19 22 24 26 29 31
A Min. 26.5 28.5 32.5 37.5 41.5 45.5 50.5 55.5
t2 Min. 1.6 2 2 2 2 2 2 2
e ≈ 34.6 37 41.6 47.3 53.1 57.7 63.5 69.3
dw ≈ 29 31 34 39 44 48 53 57
R ≈ 13.5 14.5 16.5 19 21 23 25.5 28
r ≈ 1 1 1 1.5 1.5 1.5 1.5 1.5

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FAQ

Frequently Asked Questions

  • 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. JIS B 1183:2010 Acorn Assembly Nut 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. JIS B 1183:2010 Acorn Assembly Nut 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.

About Us

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. JIS B 1183:2010 Acorn Assembly Nut 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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