Double Headed Pin Weight Table

What is Two Headed Stud?

A double-ended pin (also known as a double-headed pin) is a cylindrical fastener with threads on both ends.

The diameter, length and quantity of double-headed pins must meet specific requirements, and the type and material of the pin are determined by the class.

Commonly used double-headed pins come in two varieties (also known as fully threaded pins), with coarse or fine threads. Coarse standard threads are represented by M and nominal diameter, while fine threads are represented by M, nominal diameter and pitch.

According to fastening standards, M36 screws use coarse threads, while screws with diameters M36 and greater may employ fine threads, with all pitches being 3.

Double-headed pins with value bm=1d are generally used for connections between two steel components; Pins bm=1.25d and bm=1.5d are typically used for connections between cast iron and steel components; bm=2d pins are typically used for connections between aluminum alloy and steel components. The first type of component has internal threaded holes, while the last type has through holes.

Equal length double head studs require both ends to be threaded into a nut and washer and are used for two components with through holes. Solder pins are welded to the surface of a component at one end, and the other end (threaded end) passes through the component with the through hole, then a washer is fitted and a nut is screwed on, connecting the two components into a single unit.

Double head screws are manufactured according to GB897-GB901 standards, using materials such as Q235, 45#, 40Cr, 35CrMoA and Q345D.

They come in sizes ranging from M3mm to M100mm, with length customization available based on user needs.

High strength double head screws are made of materials such as 35#, 45#, 35CrMoA, 25Cr2MoV, 304, 316, 304L, 316L, 2H, 2HM, B7, B7M, B16, B8, B8M and 8M.

They are widely used in industries such as power generation, chemical processing, petroleum refining, valve manufacturing, railways, bridge construction, steel structures and automotive parts.

The function of double head screws includes use in mining machinery, bridges, automobiles, motorcycles, boiler steel structures, towers, long-span steel structures and large buildings.

Double Headed Pin Weight Table

(Unit: kg/1000 pieces)