R Pin

R Pins, also known as Hairpin Cotter Pins, are spring steel fasteners used for securing clevis pins, hitch pins, and shafts. They are manufactured to ASTM, DIN, and ISO standards in carbon steel or stainless steel. The single eye design provides a simple grip, while the double eye type offers better handling and higher spring retention strength. With zinc, galvanized, or stainless finishes, they ensure durability and corrosion resistance for indoor and outdoor use. They are widely used in automotive, agricultural, construction, and general engineering applications.

Description

Premium Quality R Pin Supplier in Dubai, UAE

Unifastener Industries LLC is a reliable supplier and manufacturer of premium-quality R Pins in Dubai, UAE. The company specializes in industrial fastening and locking solutions designed for machinery, automotive systems, construction projects, agricultural equipment, engineering works, and heavy-duty industrial applications. R Pins, also known as Hair Pin Cotters or Spring R Clips, are specially designed retaining fasteners used to secure shafts, clevis pins, axles, and other components in position. Their spring-loaded design provides quick installation and reliable locking performance while allowing easy removal when required. Manufactured using high-grade materials and advanced production standards, R Pins provide excellent durability, flexibility, corrosion resistance, and long-lasting fastening performance in demanding industrial environments.


Standards:
– ASTM A510 (carbon steel wire for fasteners)
– ASTM A276 (stainless steel bar/wire for machined pins)
– DIN 11023 (spring cotter pins and R-pins)
– ISO 8752 (spring-type pins – reference)
– ISO 9001 (quality manufacturing compliance)

Grades:
– Carbon steel (hardened or spring steel)
– Stainless steel: A2 / A4 (AISI 304 / 316 for outdoor/marine use)

Material Options:
– Carbon steel (zinc plated, galvanized, or black oxide)
– Stainless steel (polished or brushed finish)

Size Range:
– Wire diameter: 1.5mm to 8mm
– Length: 20mm to 150mm

Types:
– Single eye R pin (one loop handle)
– Double eye R pin (reinforced double loop handle for extra grip)
– Heavy-duty spring R pin
– Stainless steel marine-grade R pin

Properties:
– Spring steel design ensures self-locking into pre-drilled holes
– Provides secure retention of shafts, axles, clevis pins, and hitch pins
– Single eye for standard grip, double eye for easier handling and removal
– Quick to install and remove without tools

Coating Options:
– Zinc electroplated
– Hot-dip galvanized (ASTM A153 / DIN EN ISO 1461)
– Black oxide finish
– Stainless steel natural finish

Add-ons:
– Can be supplied with lanyards or retaining chains
– Available in bulk contractor packs or retail packs
– Certification/test reports available on request