SPIROL International Corporation
SPIROL International Corporation
🇺🇸 United States, Connecticut
1948501-1000 peopleManufacturer/Trading Company/DistributorSPIROL International Corporation is a premier global manufacturer and distributor of engineered fasteners, shims, and installation equipment, headquartered in Danielson, Connecticut. Founded in 1948, the company has grown into a vertically integrated technical resource with over 75 years of experience, employing between 500 and 1,000 professionals across 15 global locations. SPIROL produces over two billion components annually, serving more than 20,000 customer applications in industries such as aerospace, automotive, medical, defense, and agricultural equipment. Their extensive product portfolio includes coiled and slotted spring pins, solid pins, threaded inserts for plastics, compression limiters, disc springs, precision shims, and tubular spacers. Beyond components, they provide comprehensive assembly solutions, including fastener installation technology and vibratory feeder systems. The company is recognized for its rigorous quality standards, holding numerous certifications including IATF 16949, ISO 9001, ISO 14001, AS9100, and Nadcap accreditation. As a preferred supplier to major OEMs like Ford and Caterpillar, SPIROL offers value-added services such as application engineering, in-house heat treating, and custom secondary processes to reduce assembly costs and improve product reliability.
OEM manufacturerOffers OEM services for customized brand manufacturing.
Own brandOwns and operates its own brands and manufacturing facilities.
High capacity factoryCan handle large-scale or bulk production orders.
Product customizationOffers full customization for design and features.
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Coiled Spring Pins
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Adjustable Shims
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Custom Shims
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Tubular Spacers
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SPIROL manufactures a standard line of metal tubular Spacers as low cost alternatives for cut-off tubing, ferrules, grommets, rivets and machined hollow dowels when used as standoffs, distance bushings, sleeves and axles. Often referred to as anti-crush sleeves, spacer tubes or rolled tubes, the most common use of a Spacer is to separate or space two components from each other by a distance equal to the length of the Spacer. The Spacer is commonly used in conjunction with a bolt that passes through the inner diameter (ID) to hold the assembly together. For this reason, the inside diameter of SPIROL’s Spacers are designed for a clearance fit with standard screws and bolts. Spacers are available in two versions: the SP100 Standard Wall Spacer which is generally used in static applications with limited excessive forces exerted on the joint, and the SP150 Heavy Wall Spacer which is manufactured from thicker raw material for greater compression strength and additional bearing surface. The standard protective finish for SPIROL’s Spacers is ArmorGalv®, a zinc alloy thermal diffusion coating that offers over 1,000 hours of salt spray protection with full coating on both the inner and outer diameters of the part. SPIROL’s standard Spacers are designed for screws and bolts ranging in diameter from #4 - .750” (3/4) in lengths up to 4” for inch sizes, and metric diameters range from 3mm – 20mm in lengths up to 100mm. SPIROL can quickly manufacture any standard diameter Spacer to an intermediate length without any special tooling. In addition to being able to purchase product or request a quote for SPIROL’s Spacers, you can also view or download 2D drawings and 3D models of specific items. Simply select the part you want, then view or download the 2D drawing or 3D model in the required format. If you don’t see what you are looking for, please indicate your custom requirements using the configurator tool. If you have a high volume inquiry, or if you would like Complimentary Application Engineering support in selecting the best Spacer for your assembly, please feel free to contact SPIROL directly at info@spirol.com or call any one of our global offices.
Vibratory Feeder Systems
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Precision Shims We Offer
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SPIROL produces Shims custom-made to customer specifications from a comprehensive inventory of raw materials in thicknesses from 0.02mm up to 19mm (.001" up to .750").
Fastener Installation Equipment
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Precision Shims
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Flat Shims
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Disc Springs
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DIN EN 16983 (formerly DIN 2093) Disc Springs, Stainless Steel Disc Springs, Pre-Assembled Disc Spring Stacks, Custom Disc Spring OptionsHeat Treated Shims
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Vibratory Feeder Systems
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Customers
SPIROL
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Certifications
IATF 169497
ISO 90017
ISO 140017
AS91007
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