Dowel Pins

South Coast Fasteners, Inc. offers dowel pins that help keep your assemblies perfectly aligned every time. When accuracy and strong, slip-free connections matter, these pins are the go-to choice. You’ll find them used in tooling, molds, machinery, and automotive parts, where they’re pressed into matching components to make sure everything fits together just right and stays secure under pressure.

Get Superior-Quality Fasteners at Competitive Prices

Use the options below to find the fasteners you need in the quantities required for your application. Questions? Contact us today, and our team will gladly assist you in finding the best fastening solutions for your requirements. With South Coast Fasteners, you can count on helpful support, competitive pricing, and top-quality products for all your fastener requirements.

Material Options

South Coast Fasteners stocks dowel pins in a variety of materials to ensure precise alignment and reliable shear strength across mechanical, structural, and manufacturing applications. Each option is designed for specific tolerances, strength levels, and corrosion environments, supporting use in aerospace, automotive, die casting, and industrial assemblies.

Stainless Steel 18-8

This is the standard choice for general corrosion resistance and non-magnetic environments. 18-8 stainless dowel pins are ideal for use in lightly corrosive or moisture-prone areas where consistent alignment and moderate strength are required. Commonly used in machinery, fixtures, and alignment systems that require stainless protection without extreme demands.

Stainless Steel 316

Designed for harsh environments, 316 stainless offers superior corrosion resistance due to its molybdenum content. These dowel pins are used in marine, medical, and chemical processing settings where long-term performance against salt, acids, and other corrosive agents is essential. It also offers non-magnetic properties and excellent strength retention under temperature extremes.

Stainless Steel 416

A hardened, magnetic stainless steel alloy that combines moderate corrosion resistance with increased machinability and higher wear strength. 416 stainless dowel pins are ideal for applications requiring repeat insertion and removal or exposure to abrasive environments, such as manufacturing dies, machine tooling, and heavy assembly operations.

Through Hardened 50–62 HRC Alloy Steel

These pins are hardened throughout their cross-section to provide excellent shear strength and resistance to bending or deformation. With a Rockwell hardness of 50 to 62 HRC, they are perfect for high-load alignment in mechanical assemblies, fixtures, and dies where repeated stress is expected. These are typically used in automation, stamping, and metal forming environments.

Through Hardened 58–62 HRC Alloy Steel

This variant offers an even tighter hardness range, ensuring consistent mechanical behavior across large production runs. Used when precision and high endurance are critical, such as in aerospace tooling, robotics, and automotive powertrain alignment. The added surface integrity makes them dependable in both static and dynamic loads.

Through Hardened Alloy Steel

For the most demanding mechanical settings, this alloy steel version offers full-body hardening without a specified HRC range. These dowel pins are selected for applications requiring high fatigue strength and secure holding power under vibration or thermal cycling, such as in heavy machinery, hydraulic systems, or construction assemblies.

Why Choose South Coast Fasteners?

South Coast Fasteners offers dowel pins made to tight tolerances that ensure your parts line up perfectly. With options in hardened steel and stainless, we’ve got what you need for projects that demand precise positioning and long-lasting durability.

Order Dowel Pins Online Today

Ordering dowel pins from South Coast Fasteners is simple. Browse our selection online or get in touch if you want help finding the right size or need volume pricing. We’re here to help you build with accuracy from beginning to end.