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D shackle Iran

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Crosby D shackle

Crosby U-Bolts are manufactured from forged alloy steel, grade AISI 4140 or equivalent. Their surface hardness ranges from 35 to 40 HRC Rockwell C for optimal strength-toughness balance. Thread diameters range from M10 to M64 with standard ISO Metric Fine or Coarse thread pitch. Inside width center-to-center distance varies from 25 to 200 mm with a ±1 mm tolerance. Safe Working Load WLL ranges from 0.8 to 48 tons with a 4:1 or 5:1 safety factor. These fittings undergo quench and temper heat treatment for uniform mechanical properties.

The U-bolt structure features a semi-circular bent section with a specified inside radius and two parallel legs. The inside bend radius is typically designed at 55-60% of the nominal bolt diameter. The surface is often hot-dip galvanized with 80-120 micron thickness or electroless nickel-plated for corrosive environments. Companion nuts are Grade 8 or 10 steel per ISO 898-1, typically supplied with flat and lock washers. These fittings are tested and certified according to DIN 3570, ISO 3266 standards and Crosby specifications. Primary applications include wire rope terminations, pipe clamping, and load-bearing structural attachments.


federal-chain	021-55429480

takinboksel

Iran

021-55422784

Stainless steel D shackle

The stainless steel U shackle is a durable industrial connector used for attaching chains, wire ropes, and cables in lifting and load handling systems. Its U-shaped design with a secure pin allows it to withstand high tensile loads. Standard sizes typically range from 6 mm to 32 mm internal diameter, with load capacities from 0.3 to 6 tons. Made from 304 or 316 stainless steel, it offers excellent resistance to corrosion, moisture, and marine environments. These shackles comply with DIN 82101 and ASTM A240 standards, with a typical safety factor of 4:1.

Structurally, the body is forged from stainless steel, and the pin has precise, wear-resistant threads. The surface is polished for high abrasion and fatigue resistance. These U shackles are ideal for marine applications, construction, crane equipment, and industrial cable installations. Quick installation, high tensile strength, and corrosion resistance make stainless steel U shackles a primary choice for harsh and wet industrial environments.


takinboksel	021-55422784

hardwire-steel-wire-rope

Iran

021-55423008

galvanized shackle turnbuckle

Socket double head restraints are produced in both steel grades and stainless steel grades. The inch and millimeter sizes of double-ended socket clamps are used in the connections of chain slings and towing wires and in order to increase the tension and tension of the connection strings.
The shape of the body of the two-ended socket arrester can be both flat and tubular, and in heavy industries, flat examples of the double-ended socket arrester are often used. The main body of the double-ended socket arrester is produced by hot forging method, and G80 steel grade, which has high tensile strength and surface hardness, is often used in its production.