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Solid pins
PRECISION FASTENERS
Solid
Pins
Precision fastening and locating elements manufactured to exacting tolerances — from ±0.0002″ ground dowel pins to lightweight hollow dowel bushings. Available in carbon steel, alloy, stainless, and exotic alloys.
1907
C-1018 / C-1045
Carbon Steel Grades
4130 / 4140 / 8620
Alloy Steel Grades
303 · 316 SS
Stainless Options
±0.0002″
Ground Pin Tolerance
Product Variants
Standard Horse Nail manufactures a wide range of dowel pins and ground pins in both dimensions as well as types of pins. Hardened ground machine dowel pins have ground cylindrical sides with one end slightly pointed to enter the device and the other end is rounded or crowned to facilitate driving the pin.
Our dowel pins are available in standard and oversize dimensions to meet initial and replacement requirements. These dowel pins are intended for applications where precise locating of mating parts is critical for use as stops, guides and load bearing pins.
Specifications for Dowel Pins
To help locate the right dowel pin or ground pin for your application you will need the length and diameter and fit, or you may contact us to help you determine the correct pin to meet your requirements. We can make almost any size or length you require.
We also offer a variety of dowel pins that include straight, ground and hardened, knurled and grooved as well as hollow dowel pins and bushings. Our years of manufacturing expertise enable us to help our customers determine the right set of specifications and types of dowel pins to ensure a proper fits, long term durability, and keep your budget in line.
Standard Horse Nail’s straight dowel pins or plain pins are cylindrical fasteners or pins that keep parts in a fixed or aligned position and are available in a wide variety of materials, diameters, lengths, end types and heat treatments to meet your application requirements.
How do straight dowel pins work?
Straight pins are held in place by interference created around the entire pin circumference when it is pressed into a hole. The insertion, holding, and radial forces generated by these pins are very sensitive to the hole diameter variation.
Standard Horse Nail makes a wide range of knurled and grooved pins to meet your machine requirements. Our experienced team will also work with you to determine the correct pin for your specific application in size, fit and material.
Knurled Pins
The knurled serrations are roll formed into the pin. Unlike grooved pins, knurled pins are categorized as either straight, helical or diamond describing the pattern that appears on the pin. The serrations on a knurled pin, when compressed by insertion into a hole, result in forces which hold the fastener in place. Radial forces are more evenly distributed around the diameter of a hole for knurled pins than for grooved pins. This is because a knurled pin has more points of contact with a hole than a grooved pin.
Grooved Pins
Grooved Pins have unground straight cylindrical sides with three or more swaged or extruded grooves equally spaced around the diameter to displace material beyond the diameter of the pin. The ends of grooved pins are usually crowned or chamfered and are available in a variety of types for various design considerations.
How Grooved Pins Work
When grooved pins are installed, the material displaced by the grooves is forced back into the grooves and reacts against the sides of the hole to promote retention of the pin or stud.
Standard Horse Nail offers a wide range of knurled and grooved pins in size, material and types to match your specifications and exceed your requirements. Our team is more than happy to help you select the correct pin for your application.
Hollow dowel pins are designed to be direct replacements for standard ground solid dowels per ISO8734 and offer excellent retention force and easy installation. They are used where centerline tolerance and precision alignment are required. Hollow dowel pins are commonly used as locators, spacers and standoffs of parts. This dowel can also be heat treated and auto-inserted for durability and easy installation.
Hollow dowel pins offer a solution using less material and easier to install over solid pins when applicable. These pins are special order and a Stanho team member will be happy to help you select the right size and type of hollow dowel to meet your requirements and your budget.
Technical Overview
Trusted Solid Pin
Manufacturing
Solid pins, very similar to taper pins, are cylindrical pins designed as either precision fastening elements or very high tolerance locators. Stanho solid pins are manufactured in a variety of materials, ends and lengths including dowel and ground, straight dowel, as well as knurled and grooved. We also offer hollow dowel pins and bushings.
Solid pins provide a very versatile fastening solution that can be used in a wide variety of applications across many different industries. For extremely tight tolerances, all the way down to .0002 inches, a Stanho ground pin can be used. Grooved and Knurled pins lock into place using displaced material to provide compressional forces when inserted and are used in applications such as the chair arms in a minivan. Hollow dowel pins are used more for locating and are used over solid pins in applications where weight and fuel economy are a concern like aerospace and automotive.
Solid Pin Types · 10+ Materials
Stainless Option
303 / 316 for corrosive environments
Custom Finish
Zinc, nickel, black oxide on request
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Need Standard or Custom
Solid Pins?
Don’t see the taper pins you were looking for? We can meet all of your custom taper pin needs — any material, any size. Call us at 724.846.4660 or send us your print for a fast quote.