Spring Pin / Spiral Pin - Image 1
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Spring Pin / Spiral Pin
Spring Pin / Spiral Pin - Image 2
Dowel Pin / Pull Out Dowel Pin
Dowel Pin / Pull Out Dowel Pin
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Pipe Hanging Clamps
Pipe Hanging Clamps

Spring Pin / Spiral Pin

Spring Pins are cylindrical fasteners with slotted or spiral designs that compress during installation to lock securely into drilled holes. They are manufactured to ASTM, DIN, and ISO standards in spring steel, stainless steel, or bronze. Their spring tension provides reliable self-retention while absorbing vibration and shock loads. Available in slotted, spiral, standard, and heavy-duty variants with zinc, phosphate, or stainless finishes, they offer strength and corrosion resistance. They are widely used in automotive, aerospace, machinery, tools, and general engineering for alignment, fastening, and load-bearing applications.

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Description

Premium Quality Spring Pin / Spiral Pin Supplier in Dubai, UAE

Unifastener Industries LLC is a reliable supplier and manufacturer of premium-quality Spring Pins and Spiral Pins in Dubai, UAE. The company specializes in precision fastening components, mechanical locking systems, and industrial hardware designed for secure alignment and load distribution in demanding applications. Spring Pins (also known as Spiral Pins or Roll Pins) are hollow, slotted or coiled fasteners designed to hold components together by spring tension. When inserted into a hole, they compress slightly and exert outward pressure, creating a strong friction lock that prevents loosening under vibration and load. Manufactured using high-carbon spring steel or stainless steel, Spring Pins offer excellent flexibility, shear strength, vibration resistance, and long service life in mechanical assemblies.

Standards:
– DIN 1481 (slotted spring pins)
– DIN 7346 (spiral spring pins)
– ISO 8752 (slotted spring pins, heavy duty)
– ISO 8750 (spiral spring pins, standard duty)
– ASTM A684 (high-carbon spring steel for pins)

Grades:
– Spring steel (hardened and tempered)
– Stainless steel A2 / A4 (AISI 302 / 304 / 316)
– Phosphor bronze (specialized corrosion/electrical applications)

Material Options:
– Carbon spring steel (black oxide, phosphate, zinc plated)
– Stainless steel (plain, polished, passivated)
– Bronze or copper alloys (marine and electrical uses)

Size Range:
– Diameter: 1.5mm to 25mm
– Length: 6mm to 150mm
– Duty: light, standard, heavy duty

Types:
– Slotted spring pin (DIN 1481 / ISO 8752)
– Spiral spring pin (DIN 7346 / ISO 8750)
– Stainless steel spring pin
– Heavy-duty spring pin

Properties:
– Cylindrical pin with a slot or coiled layers allowing compression during installation
– Self-retaining in drilled holes due to spring tension
– Absorbs shock, vibration, and dynamic loads
– Can be reused in many applications without loss of performance
– Ideal for fastening, locating, and alignment purposes

Coating Options:
– Zinc electroplated (clear, yellow, or black)
– Black oxide finish
– Phosphate and oil finish
– Stainless steel natural finish

Add-ons:
– Available in light, standard, and heavy-duty versions
– Supplied in both metric and inch sizes
– Certification/test reports (hardness, fatigue strength, shear strength) available on request

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