Roll Pins
Slotted and Coil Spring or Hollow pins are types of roll pins that are economical, self-locking solutions for thousands of demanding and non-precision industrial applications. These pins are formed through the progressive roll forming of flat strips of carbon steel or heat-treatable 420 stainless steel. They have several applications, though they’re commonly used as dowels, spacers, and stop pins.
Spring pins are unique from solid pins in that they retain locking force by exerting a radial force or tension against the hole wall after installation. Typically, they are manufactured to an oversized dimension so that when the pin is inserted, its radial forces hold it securely in place. These hollow pins come in two types: slotted and coiled, each with its own unique applications and style choices available to customers.
Both slotted and coiled spring pins come in a wide range of standard sizes and finishes. Typically, they have a standard zinc or light oil finish, but Driv-Lok also offers other finishes upon request.
Slotted & Coiled Driv-Lok Spring Pins
Slotted Spring Pins
Slotted pins are a general-purpose fastener manufactured with a gap designed to allow the pin to flex during installation. This allows the pin to absorb varying tolerances, making it an excellent, low-cost choice for noncritical applications. These pins come in two styles: conventional and Type A Notched.
Coiled Spring Pins
Coiled spring pins are versatile fasteners that dampen assemblies’ shock and vibration. They can be customized for several types of applications. These pins come in varying styles–light, standard, and heavy-duty–which allow for an optimal combination of strength, flexibility, and pin size.
Specifications
Minimum double shear values (lbs.) of Driv-Lok pins of various types.
| Pin Diameter | Grooved Pins | Slotted Spring Pins | |||
| Low Carbon | Shear-proof Alloy Steel (RC 40-48) | Corrosion Resistant Steel | Brass | 1074 Steel and 420 SS | |
| 1⁄16 | 410 | 720 | 540 | 250 | 430 |
| 3⁄32 | 890 | 1,600 | 1,240 | 560 | 1,150 |
| 1⁄8 | 1,600 | 2,820 | 2,200 | 990 | 1,875 |
| 5⁄32 | 2,300 | 4,520 | 3,310 | 1,540 | 2,750 |
| 3⁄16 | 3,310 | 6,400 | 4,760 | 2,200 | 4,150 |
| 7⁄32 | 4,510 | 8,770 | 6,480 | 3,020 | 5,850 |
| 1⁄4 | 5,880 | 11,500 | 8,460 | 3,950 | 7,050 |
| 5⁄16 | 7,660 | 17,900 | 12,700 | 6,170 | 10,800 |
| 3⁄8 | 11,000 | 26,000 | 18,200 | 9,050 | 16,300 |
| 7⁄16 | 15,000 | 35,200 | 24,800 | 12,100 | 19,800 |
| 1⁄2 | 19,600 | 46,000 | 32,400 | 15,800 | 27,100 |
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Driv-Lok is a trusted manufacturer and supplier of quality, comprehensive fastening, and hydraulic solutions. We have decades of experience finding solutions for our customers’ toughest assemblies. For more information or if you’re ready to get started with us, don’t hesitate to contact us today with any questions or requests you may have.