Clevis Pins Without Head GB /T 880

Product Overview
GB/T 880-2008 is the Chinese National Standard specifying the dimensions, technical requirements, and marking for "Clevis Pins Without Head" with nominal diameters (d) ranging from 3 mm to 100 mm. As a key component within the "pins" family of fasteners, this standard was established on February 1, 2009, superseding the older GB/T 880-1986. It is technically equivalent to the international standard ISO 2340:1986, ensuring global interoperability and interchangeability. The defining characteristic of this pin is the absence of an integrated head for axial retention. Instead, it is designed to be secured in place by separate locking devices such as split pins (cotter pins) or retaining rings, which pass through transverse holes drilled in the pin's body. This design makes it an essential, standardized solution for creating reliable, heavy-duty pivoting and hinge connections in dynamic mechanical systems.

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• Key Specifications
  The standard defines two primary product forms: the basic Type (without internal thread) and Type B (with an internal threaded hole at one end to facilitate extraction). Critical specifications include the pin's diameter (d), length (L), and the position and diameter of the transverse locking hole(s). Materials and mechanical properties are typically selected from alloy steels such as 30CrMnTi or 42CrMo, often heat-treated to achieve high surface hardness (e.g., 50-60 HRC) and a tough core, complying with performance grades outlined in related standards.

  Primary Design Rationale
  The headless design is intentional, providing a clean cylindrical profile that allows the pin to be inserted through aligned clevis arms or yokes. The transverse hole(s) accommodate positive locking devices like split pins, which physically prevent the pin from sliding out during operation. This configuration offers a simple, robust, and field-serviceable connection. The optional internal thread in Type B pins allows for easy installation and removal using a threaded rod or tool, significantly simplifying maintenance.

  Application Profile
  These pins are fundamental components in applications involving articulation and swinging motion under load. They are universally employed in the linkages of construction machinery (excavators, loaders), agricultural equipment, vehicle suspension and steering systems, and industrial valve linkages. Their use is critical wherever a dependable, shear-resistant pivot point is required that must withstand oscillating forces, shock loads, and high wear, ensuring the integrity of the mechanical joint over extended service life.

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RFQ
1.How do you let me trust you?
We have own import & export right, and we are Gold member of ****** and made in china,We get credit guarantee from ****** Group. you can make an order by ****** to us directly.
2.How about your price?
High quality products with reasonable price. Please give me a inquire, I will quoted you a price for you refer at once.
3. How do you control your quality?
We require the quality control department to inspect every production link of each shipment. And we can provide you MTC and mill certificate when the goods is finished.
4.Do you accept small order?
Sure, we can accept any orders, we keep lots of stock for ALL STAINLESS STEEL FASTENER, CARBON STEEL NUT AND PART BOLT,Like hex weld nut, cage nut, wing nut, square weld nut,cap nut, hex nut,flange nut.Metric 8.8Grade,10.9Grade 12.9Grade Hex bolt and Hex Socket cap screw,Part ASME Hex cap screw.
5.How about your delivery time?
General speaking, if the goods is in stock, we can delivery them with 2-5days, If the quantity is 1-2container, we can give you with 18-25days,if the quantity is more than 2 container and you are very urgent, we can let factory priority produce your goods.
6.What is your packing?
Our packing is 20-25kg for one carton,36 or 48pcs cartons for one pallet. One pallets is about 900-960kg, We also can make customer's logo on the cartons. Or we customized cartons according to customers' requirement
7.What is your payment term?
We can accept T/T,LC for general order ,Paypal and Western union for small order or samples order.

Jiaxing City Qunbang Hardware Co., Ltd. (brand: QBH) is a fastener enterprise integrating production, design, sales, and after-sales service. The company is located in the Hangzhou-Jiaxing-Huzhou Plain, close to Shanghai, Ningbo, and Zhapu ports. Thanks to its superior geographical position and convenient transportation, the company has natural advantages for export business.

The company mainly produces high-strength fasteners, with bolts and nuts as its core products. The main standards include DIN, ANSI/ASME, JIS, UNI, ISO, AS, BS, GB, and others. Our products are widely used in bridges, roads, petroleum pipeline facilities, wind power generation, and steel structure projects. Carbon steel bolts are available in grades 4.8, 5.8, 6.8, 8.8, 10.9, and 12.9; nuts in grades 4, 6, 8, and 10. Stainless steel fasteners are mainly made of 201, 304, and 316. Since its establishment, QBH has undergone over ten years of development. We are equipped with comprehensive testing equipment and maintain good cooperation with SGS and TUV. Each batch of products is accompanied by a 3.1 or 3.2 certificate, further ensuring quality.

In 2017, we registered the trademark “QBH” in China, the EU, and the United States, and obtained six fastener product patents. We have also been awarded the Zhejiang Province Science and Technology Small and Medium-sized Enterprise certificate and the ISO9001:2000 certificate. As the company continues to grow and customers demand more diversified products, we have further strengthened our manufacturing capabilities.

In 2025, QBH officially expanded with two new factories:

• China Factory (Ningbo):
  NINGBO QB FASTENER MANUFACTURING CO., LTD.
  Add: No.100, Tianshen Road, Jiulonghu, Zhenhai, Ningbo City, Zhejiang Province, China

• Vietnam Factory:
  Công ty TNHH Sản xuất và Thương mại Khải Tín Huy
  Add: Street No.1, Thuan Dao Expanded Industrial Park, Long Dinh Ward, Can Duoc District, Long An, Vietnam

With the addition of these new facilities, QBH has significantly increased production capacity, optimized cost structures, and enhanced supply chain flexibility. Starting from 2015, QBH had already begun cooperating with several fastener enterprises to enrich product variety and improve pricing. Now, with our own manufacturing bases in both China (Ningbo) and Vietnam, we can offer even more competitive prices, shorter lead times, and better quality control across a wider range of products.

QBH has always been committed to providing customers with efficient, convenient services and high-quality products. Our mission is to create a pleasant trading experience for our customers, deeply participate in their construction projects, and make progress together. This means we continuously strive to offer better and more cost-effective solutions, helping customers stand out in a competitive market.

QBH promises to always provide you with excellent quality, efficient service, and very competitive prices. We believe our cooperation is not only business-based but also an opportunity to open new markets together on a win-win basis. We thank all our past customers for their great support and help, which have allowed us to grow step by step. At the same time, we look forward to establishing new business relationships with you in the near future.