Full-Groove Dowel Pins
Grooves run the full length of these pins for a firm hold that won't spin. Use them in place of standard dowel, spring, and taper pins to fasten parts. The three grooves pinch shut when pressed into a hole, creating tension to lock pins in place. For the best fit, the hole should be equal to or slightly larger than the diameter shown. The ends are chamfered for easy insertion. Breaking strength is measured as double shear, which is the force required to break a pin into three pieces. Also known as type A pins.
Pins with parallel grooves fit more tightly than pins with tapered grooves, so they’re less likely to loosen from vibration. However, they require more force to insert. Pins that meet ISO 8740 comply with international standards for parallel-groove metric dowel pins.
Zinc-plated steel pins have good strength and some corrosion resistance.
For technical drawings and 3-D models, click on a part number.
Lg., mm | Dia. (A), mm | Dia. (A) Tolerance, mm | Dia. (B), mm | Dia. (B) Tolerance, mm | Breaking Strength, lbs. | Groove Style | Specifications Met | Pkg. Qty. | Pkg. | |
3 mm Dia. | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|
12 | 3 | -0.025 to 0 | 3.2 | -0.05 to 0.05 | 1,400 | Parallel | ISO 8740 | 10 | 00000000 | 00000 |
Half-Groove Dowel Pins
These pins make good hinges or pivots. The grooves pinch shut when pressed into a hole, creating tension and holding the pin in place. The grooved half locks pins in position, while the smooth half acts as a pivot. For the best fit, the hole should be equal to or slightly larger than the diameter shown. The ends are chamfered for easy insertion. Pins are made of zinc-plated steel for good strength and some corrosion resistance. Breaking strength is measured as double shear, which is the force required to break a pin into three pieces. Also known as type H pins.
Tapered pins are good when part of the assembly must be a free fit.
Reverse-tapered pins are useful when the ungrooved portion will act as a stop or handle.
For technical drawings and 3-D models, click on a part number.
Lg. | Dia. (A) | Dia. (A) Tolerance | Dia. (B) | Dia. (B) Tolerance | Groove Lg. | Breaking Strength, lbs. | Specifications Met | Pkg. Qty. | Pkg. | |
Dowel Pins with Tapered Groove—Zinc-Plated12L13 Carbon Steel | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|
3mm Dia. | ||||||||||
6mm | 3mm | -0.025mm to 0mm | 3.2mm | -0.05mm to 0.05mm | 3mm | 1,400 | ISO 8745 | 10 | 000000000 | 00000 |
8mm | 3mm | -0.025mm to 0mm | 3.2mm | -0.05mm to 0.05mm | 4mm | 1,400 | ISO 8745 | 10 | 000000000 | 0000 |
Dowel Pins with Reverse-Tapered Groove—Zinc-Plated12L13 Carbon Steel | ||||||||||
3mm Dia. | ||||||||||
14mm | 3mm | -0.025mm to 0mm | 3.2mm | -0.05mm to 0.05mm | 7mm | 1,400 | ISO 8741 | 10 | 000000000 | 0000 |
Core Pins
Mold plastic around these pins to form small holes, or use them to perforate parts. They have a flat head to fit into a counterbored hole. Pins can be machined to fit your application. They're precision-ground to tight tolerances.
M2 tool steel pins resist wear and stay sharp at high temperatures.
For technical drawings and 3-D models, click on a part number.
Head | ||||||
---|---|---|---|---|---|---|
Dia., mm | Dia. Tolerance, mm | Dia., mm | Ht., mm | Min. Hardness | Each | |
63 mm Lg. | ||||||
3.200 | 0 to 0.008 | 6 | 5 | Rockwell C60 | 000000000 | 000000 |
Ejector Pins
Also known as knockout and forged pins, use these pins to push parts out of molds. Pins are precision-ground to tight tolerances and hardened for strength and wear resistance. Machining is not recommended.
M2 tool steel pins withstand high temperatures.
Metric pins meet DIN 1530 specifications.
For technical drawings and 3-D models, click on a part number.
Cotter Pins
Also known as split pins, these have one prong slightly longer than the other so they’re easy to open. Bend prongs outward to secure. Use them to secure the ends of clevis pins and shafts to keep components in place.
Steel pins have good strength. Pins with a zinc-plated finish have some corrosion resistance.
18-8 stainless steel pins offer a balance of strength and corrosion resistance. They may be mildly magnetic. Passivated pins offer added protection against corrosion and oxidation.
For technical drawings and 3-D models, click on a part number.
Lg., mm | Specifications Met | Pkg. Qty. | Pkg. | |
3.2 mm Dia. | ||||
---|---|---|---|---|
10 | DIN 94, ISO 1234 | 50 | 000000000 | 00000 |
16 | DIN 94, ISO 1234 | 50 | 000000000 | 0000 |
18 | DIN 94, ISO 1234 | 50 | 000000000 | 0000 |
20 | DIN 94, ISO 1234 | 50 | 000000000 | 0000 |
25 | DIN 94, ISO 1234 | 25 | 000000000 | 0000 |
28 | DIN 94, ISO 1234 | 25 | 000000000 | 0000 |
32 | DIN 94, ISO 1234 | 25 | 000000000 | 0000 |
36 | DIN 94, ISO 1234 | 25 | 000000000 | 0000 |
40 | DIN 94, ISO 1234 | 25 | 000000000 | 0000 |
45 | DIN 94, ISO 1234 | 25 | 000000000 | 0000 |
50 | DIN 94, ISO 1234 | 25 | 000000000 | 0000 |
63 | DIN 94, ISO 1234 | 25 | 000000000 | 0000 |
Lg., mm | Passivation | Specifications Met | Pkg. Qty. | Pkg. | |
3.2 mm Dia. | |||||
---|---|---|---|---|---|
16 | Passivated | DIN 94, ISO 1234 | 50 | 000000000 | 000000 |
18 | Passivated | DIN 94, ISO 1234 | 50 | 000000000 | 00000 |
20 | Passivated | DIN 94, ISO 1234 | 50 | 000000000 | 00000 |
22 | Passivated | DIN 94, ISO 1234 | 50 | 000000000 | 00000 |
25 | Passivated | DIN 94, ISO 1234 | 25 | 000000000 | 00000 |
32 | Passivated | DIN 94, ISO 1234 | 25 | 000000000 | 00000 |
40 | Passivated | DIN 94, ISO 1234 | 25 | 000000000 | 0000 |
45 | Passivated | DIN 94, ISO 1234 | 25 | 000000000 | 00000 |
50 | Passivated | DIN 94, ISO 1234 | 25 | 000000000 | 00000 |