GB 899 bm=1.5d Double End Studs
Product: GB 899 bm=1.5d Double End Studs
Property Class:4.6,4.8,5.6,5.8,8.8,10.9,12.9,
A2-70, A4-70,A4-80
Finish:Zinc Plating（Yellow Zinc, Zinc Blue, Rinse Color), Black, Phosphate & Oil, Zinc Phosphate, Hot-dip Galvanized(HDG),Dacromet, Geomet
Material:Steel
Export country: USA, Japan, Australia, Europe and so on
Support customer customization
GB 899 bm=1.5d Double End Stud is a fastener with specific standards, mainly used for the fixed link function of connecting machinery. In the GB 899 standard, bm=1.5d means that the stud length (bm) is 1.5 times the bolt diameter (d). This design helps provide extra stability and strength when more pressure is required or a stronger connection is required. It is characterized by threads on both ends, and the threaded part in the middle can be thick or thin. This kind of stud bolts (also known as stud screws or studs) are widely used in many fields, including mining machinery, bridge construction, automobiles, motorcycles, boiler steel structures, hanging towers, long-span steel structures, and large-scale buildings.
Pictures
Product drawing
Product Specification
Size | M2 | M2.5 | M3 | M4 | M5 | M6 | M8 | M10 | M12 | M14 | M16 | Size(cont. | M18 | M20 | M22 | M24 | M27 | M30 | M33 | M36 | M39 | M42 | M48 | ||||
bm | nom. | 3.0 | 3.5 | 4.5 | 6.0 | 8.0 | 10.0 | 12.0 | 15.0 | 18.0 | 21.0 | 24.0 | bm | nom. | 27 | 30 | 33.0 | 36.0 | 40.0 | 45.0 | 49.0 | 54.0 | 58.0 | 63.0 | 72.0 | ||
min | 2.4 | 2.9 | 3.9 | 5.4 | 7.25 | 9.25 | 11.1 | 14.1 | 17.1 | 19.95 | 22.95 | min | 25.95 | 28.95 | 32.75 | 34.75 | 38.75 | 43.75 | 47.75 | 53.5 | 56.5 | 61.5 | 70.5 | ||||
max | 3.6 | 4.1 | 5.1 | 6.6 | 8.75 | 10.75 | 12.90 | 15.9 | 18.9 | 22.05 | 25.05 | max | 28.05 | 31.05 | 34.25 | 37.25 | 41.25 | 46.25 | 50.25 | 55.5 | 59.5 | 64.5 | 73.5 | ||||
ds | max | 2.0 | 2.5 | 3.0 | 4.0 | 5.0 | 6.0 | 8.0 | 10.0 | 12.0 | 14.0 | 16.0 | ds | max | 18 | 20.0 | 22.0 | 24.0 | 27.0 | 30.0 | 33.0 | 36.0 | 39.0 | 42.0 | 48.0 | ||
min | 1.75 | 2.25 | 2.75 | 3.7 | 4.7 | 5.7 | 7.64 | 9.64 | 11.57 | 13.57 | 15.57 | min | 17.57 | 19.48 | 21.48 | 23.48 | 26.48 | 29.48 | 32.38 | 35.38 | 38.38 | 41.38 | 47.38 | ||||
X max | 2.5P | X max | 2.5P | ||||||||||||||||||||||||
l | b | l | b | ||||||||||||||||||||||||
nom. | min | max | nom. | min | max | ||||||||||||||||||||||
12 | 11.1 | 12.90 | 6 | / | / | / | / | / | / | / | / | / | / | 35 | 33.75 | 36.25 | 22 | 25 | / | / | / | / | / | / | / | / | / |
14 | 13.1 | 14.90 | 8 | 38 | 36.75 | 39.25 | |||||||||||||||||||||
16 | 15.1 | 16.90 | 6 | 8 | 10 | 40 | 38.75 | 41.25 | 30 | ||||||||||||||||||
18 | 17.10 | 18.90 | 8 | 45 | 43.75 | 46.25 | 35 | 35 | 30 | ||||||||||||||||||
20 | 18.95 | 21.05 | 11 | 10 | 12 | 50 | 48.75 | 51.25 | 40 | 35 | |||||||||||||||||
22 | 20.95 | 23.05 | 12 | 55 | 53.5 | 56.5 | 45 | ||||||||||||||||||||
25 | 23.95 | 26.05 | 14 | 16 | 14 | 16 | 14 | 16 | 60 | 58.5 | 61.5 | 40 | |||||||||||||||
28 | 26.95 | 29.05 | / | 65 | 63.5 | 66.5 | 42 | 50 | 45 | 45 | |||||||||||||||||
30 | 28.95 | 30.05 | 16 | 18 | 20 | 70 | 68.5 | 71.5 | 46 | 50 | 50 | 50 | |||||||||||||||
32 | 30.75 | 33.25 | / | 18 | 22 | 20 | 75 | 73.5 | 76.5 | 50 | 60 | ||||||||||||||||
35 | 33.75 | 36.25 | 80 | 78.5 | 81.5 | 54 | 60 | 60 | |||||||||||||||||||
38 | 36.75 | 39.25 | 25 | 85 | 83.25 | 86.75 | 65 | 70 | |||||||||||||||||||
40 | 38.75 | 41.25 | 26 | 30 | 90 | 88.25 | 91.75 | 60 | |||||||||||||||||||
Please contact us for more product sizes. | |||||||||||||||||||||||||||
Support customer customization | |||||||||||||||||||||||||||
Some introduction about our company
Application
Jinan Star Company specializes in the production of fastener products. Our bolts, nuts and other products are widely used in machinery, railways, automobiles, construction, electrical, bridges, communications, firefighting and other industries.
Workshop
The workshop of Jinan Star Fastener Co., Ltd. is the core area of the company's production and manufacturing, with advanced production equipment. The reasonable layout of the workshop and the scientific production process ensure the efficient production and high-quality output of fastener products.
Certification
Jinan Star Fastener Co., Ltd. has obtained the 2015 version of ISO9001 quality management system certification through the scientific management of leaders of various departments and the pursuit of high quality for bolts and other fasteners. In addition, the laboratory owned by Star Company has obtained the certification in 2017. It passed the national CNAS certification in 2018, and the company passed the European CE certification in 2018.
Testing Equipment
Jinan Star Fastener Company attaches great importance to product quality and is equipped with complete quality inspection equipment, such as tensile testing machines, torque testers,metallographic microscopes, optical projectors, salt spray test chambers, coating thickness gauges, etc., which are used to test the tensile strength and elongation of fastener products and evaluate the mechanical properties of products. These equipment ensure that every link from raw materials to finished products can be strictly controlled in quality.
Production equipment
In order to meet the needs of different customers, the company has introduced a series of advanced production equipment, such as multi-station cold heading machines, thread rolling equipment, heat treatment equipment, shot blasting machines, sand blasting machines, electroplating lines and other surface treatment equipment, and fully automatic packaging equipment. These equipment not only improve production efficiency, but also ensure the consistency and stability of product quality.
Packing
FAQ
1.For metal studs,How to ensure the quality of GB 899 bm=1.5d Double End Studs?
The GB 899 bm=1.5d double-ended studs produced by our manufacturer are produced in strict accordance with national standards and undergo strict quality testing to ensure the stability and reliability of the GB 899 bm=1.5d double-ended studs. We have advanced production equipment and technical team to ensure the excellent quality of GB 899 bm=1.5d double-ended studs.
2. How to choose the appropriate GB 899 bm=1.5d double-ended stud specifications?
Choosing the appropriate stud specification needs to be determined based on the specific application scenario and needs. We can recommend suitable specifications and models for you based on your equipment, connection requirements, usage environment and other factors. At the same time, we also provide customization services and can produce customized products according to your special needs.
3. How to arrange the delivery time and transportation method of GB 899 bm=1.5d studs?
We will arrange the production schedule based on your order quantity and delivery requirements to ensure on-time delivery. Regarding transportation methods, we can provide suitable transportation solutions based on your needs and geographical location, including express delivery, logistics, etc., to ensure that the products are delivered to you safely and quickly.
4. What should I do if there is a problem with the national standard 899 bm=1.5d double-ended stud during use?
We provide complete after-sales service support. If there is a problem with the product during use, you can contact us at any time, and we will provide you with technical support and solutions in a timely manner to ensure your smooth use. At the same time, we also provide product returns and exchanges to ensure that your rights and interests are protected.
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