Double coil spring pin | A2 | M8378
Do you need a linch pin that performs reliably in humid indoor and outdoor environments? The double ring linch pin in A2 stainless steel (AISI 304) is built to resist corrosion and maintain its strength over a long period. It combines low weight with high breaking strength and is optimized to withstand heavy mechanical loads as well as frequent disassembly and assembly.
APPLICATION AREA
Perfect for quick and secure fastening of bolts, shafts, pipes, and machine parts in machine building, agriculture, trailers, and the machinery and automotive industries where vibration-proof locking is required. The spring-loaded double ring provides a stable and vibration-resistant connection without the need for additional fittings. Easy to mount by hand, completely without tools, and requires minimal maintenance even during continuous operation.
TECHNICAL SPECIFICATIONS
Product type: Double ring linch pin
Standard: DIN 11024
Quality: A2 (AISI 304)
Material class: Not specified (breaking strength can be stated by dimension if required)
Thread type: Not applicable
Surface treatment: Untreated (natural stainless steel)
Head shape: Double ring (spring loop)
Grip type: Not applicable
FREQUENTLY ASKED QUESTIONS (FAQ)
What is the advantage of a double linch pin with a ring compared to a single linch pin?
The double loop/ring provides extra spring force and a significantly more secure grip around the shaft. It drastically reduces the risk of the pin unhooking or being forced loose by accident during heavy vibrations, shocks, or if ropes and debris should get caught in it.
What is a double linch pin used for?
It is used to lock bolts, shafts, clevis pins, and gear racks in applications that require extra high locking security while still allowing for quick assembly and disassembly without tools. It is popular in machine construction, agriculture, trailer and vehicle equipment, and equipment for outdoor use.
Why choose stainless A2 / AISI 304 for the linch pin?
A2 steel (AISI 304 / 1.4301) provides excellent corrosion protection and high weather resistance in outdoor environments, damp spaces, and industrial settings. It ensures that the pin retains its elasticity and spring function over time without rusting or seizing, provided it is not submerged in salt water or exposed to strong acids (where A4 is recommended).