Spring cotter pin | A2 | M8377
Single R-clip in A2 stainless steel is intended for use in applications where fast and secure locking of shafts, pins, or clevis pins is required. The product has no established standard and is used where a spring-loaded locking mechanism enables easy assembly and disassembly without tools. The A2 material provides good corrosion resistance in normal outdoor and industrial environments.
AREA OF USE
The product is used in construction, industry, automotive, and general mechanical equipment. It is intended for applications where quick, removable locking of components is required, such as securing wheel axles, pin joints, or adjustable couplings, and where the choice of material provides sufficient protection against corrosion and mechanical stress in non-marine environments.
TECHNICAL SPECIFICATIONS
Product type: Pin
Product family: Single R-clip
Material class: A2
Strength class: Not specified
Standard: Not specified
Length: Specified in mm depending on dimension
Design: Single R-clip
Surface finish: Bright
Environment: Outdoor
Delivery unit: Piece
FREQUENTLY ASKED QUESTIONS (FAQ)
What is a single R-clip (A2) used for?
A single R-clip (also called a hair-pin cotter or R-clip) is used to quickly and securely lock shafts, bolts, rig bolts, and clevis pins. It is easily pushed into a through-hole where its curved, springy leg grips around the shaft and prevents the bolt from sliding out.
What does it mean that the R-clip is made of A2 stainless steel?
A2 steel (AISI 304 / 1.4301) provides very good corrosion protection in common outdoor environments, damp indoor spaces, and lighter industrial applications. It is the perfect choice for general machine designs and trailers where the components are not exposed to direct saltwater or strong chemicals (where A4 is recommended).
What is the advantage of an R-clip compared to a cotter pin?
An R-clip can be easily assembled and disassembled by hand without any tools, and it is designed to be reused over and over again. A classic cotter pin, on the other hand, must be bent during assembly and straightened during disassembly, which usually means it needs to be replaced after a single use.