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Compression Springs
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Squeeze these springs and they’ll push right back to their original length. When compressed, they apply steady pressure to keep components securely in place. Release the pressure and they snap back instantly, just like the tip of a ballpoint pen.
Corrosion-Resistant 302 Stainless Steel—Won’t corrode from exposure to moisture and mild chemicals, including ammonia often found in cleaning solutions. These springs are easier to compress than steel, but can’t handle as high a load.
Highly Corrosion-Resistant 316 Stainless Steel—Our most corrosion-resistant stainless steel springs won't degrade when exposed to salt water and harsh chemicals. They're easier to compress than steel, but can’t handle as high a load.
Lg., mm | OD, mm | ID, mm | Wire Dia., mm | Compressed Lg. @ Max. Load, mm | Max. Load, lb. | Spring Rate, lbf/mm | End Type | Specs. Met | Pkg. Qty. | Pkg. | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Corrosion-Resistant 302 Stainless Steel | |||||||||||||
| 40 | 19.2 | 12.8 | 3.2 | 24.9 | 135 | 8.9 | Closed and Ground | DIN 2095 | 2 | 2006N339 | 000000 | ||
Highly Corrosion-Resistant 316 Stainless Steel | |||||||||||||
| 40 | 3 | 1.98 | 0.51 | 29.8 | 2 | 0.19 | Closed and Ground | — | 1 | 8969T37 | 0000 | ||
| 40 | 3.71 | 2.49 | 0.61 | 28.2 | 2.8 | 0.23 | Closed and Ground | — | 1 | 8969T475 | 0000 | ||
| 40 | 4.6 | 3.38 | 0.61 | 26.7 | 2.3 | 0.17 | Closed and Ground | — | 1 | 8969T492 | 0000 | ||
| 40 | 4.6 | 3.88 | 0.36 | 21.9 | 0.4 | 0.02 | Closed and Ground | — | 1 | 8969T343 | 0000 | ||
| 40 | 5.99 | 4.37 | 0.81 | 27.5 | 4.1 | 0.33 | Closed and Ground | — | 1 | 8969T631 | 0000 | ||
| 40 | 5.99 | 4.77 | 0.61 | 21 | 1.8 | 0.09 | Closed and Ground | — | 1 | 8969T515 | 0000 | ||
| 40 | 5.99 | 4.97 | 0.51 | 19.4 | 1 | 0.05 | Closed and Ground | — | 1 | 8969T407 | 0000 | ||
| 40 | 7.49 | 5.61 | 0.97 | 26.4 | 5.5 | 0.4 | Closed and Ground | — | 1 | 8969T703 | 0000 | ||
| 40 | 7.49 | 5.87 | 0.81 | 24.5 | 3.3 | 0.21 | Closed and Ground | — | 1 | 8969T655 | 0000 | ||
| 40 | 7.49 | 6.17 | 0.66 | 22.9 | 1.8 | 0.1 | Closed and Ground | — | 1 | 8969T562 | 0000 | ||
| 40 | 8.99 | 6.81 | 1.09 | 27.2 | 6.6 | 0.51 | Closed and Ground | — | 1 | 8969T806 | 0000 | ||
| 40 | 8.99 | 7.67 | 0.66 | 21.4 | 1.5 | 0.08 | Closed and Ground | — | 1 | 8969T581 | 0000 | ||
| 40 | 10.8 | 8.2 | 1.3 | 25.9 | 9 | 0.64 | Closed and Ground | — | 1 | 8969T889 | 0000 | ||
| 40 | 10.8 | 9.02 | 0.89 | 21.3 | 3 | 0.16 | Closed and Ground | — | 1 | 8969T686 | 0000 | ||
| 40 | 11.99 | 9.19 | 1.4 | 25.1 | 10 | 0.68 | Closed and Ground | — | 1 | 8969T902 | 0000 | ||
| 40 | 11.99 | 10.11 | 0.97 | 21.3 | 3.5 | 0.18 | Closed and Ground | — | 1 | 8969T737 | 0000 | ||
| 40 | 15.01 | 11.81 | 1.6 | 23.9 | 12 | 0.74 | Closed and Ground | — | 1 | 8969T946 | 0000 | ||
| 40 | 15.01 | 12.63 | 1.19 | 15.7 | 5.2 | 0.21 | Closed and Ground | — | 1 | 8969T841 | 0000 | ||
| 40 | 18.29 | 14.27 | 2.03 | 25.8 | 19 | 1.3 | Closed and Ground | — | 1 | 8969T984 | 0000 | ||
| 40 | 18.29 | 15.49 | 1.4 | 20.6 | 6.8 | 0.35 | Closed and Ground | — | 1 | 8969T916 | 0000 | ||
Slotted Spring Pins
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End View |
Squeeze these pins into holes and they expand slightly, creating tension to hold parts in place. They are often used as hinge pins and as fasteners for springs and power transmission components. An alternative to dowel pins, they're lighter in weight with a hollow center and don’t need a precise hole. Also known as roll pins.
Spring Steel—These pins won't deform from stress and vibration. Although they're stronger than stainless steel, they're best for dry environments since moisture will cause them to rust.
Corrosion-Resistant 18-8 Stainless Steel—The choice for wet and outdoor environments, these pins resist rusting. They are strong enough to join most components but won't withstand extreme stress and vibration as well as steel.
Lg., mm | For Hole Dia., mm | Wall Thk., mm | Double Shear Breaking Strength | Min. Hardness | Specs. Met | Pkg. Qty. | Pkg. | |||
|---|---|---|---|---|---|---|---|---|---|---|
Spring Steel | ||||||||||
3 mm Diameter | ||||||||||
| 40 | 3 | 0.3 | 780 lbf | Rockwell C42 | DIN 7346, ISO 13337 | 50 | 97161A142 | 000000 | ||
| 40 | 3 to 3.1 | 0.6 | 1,400 lbf | Rockwell C42 | ISO 8752 | 100 | 91611A175 | 00000 | ||
4 mm Diameter | ||||||||||
| 40 | 4 | 0.5 | 1,700 lbf | Rockwell C42 | DIN 7346, ISO 13337 | 25 | 97161A158 | 0000 | ||
| 40 | 4 to 4.2 | 0.8 | 2,500 lbf | Rockwell C42 | ISO 8752 | 100 | 91611A217 | 00000 | ||
5 mm Diameter | ||||||||||
| 40 | 5 | 0.5 | 2,300 lbf | Rockwell C42 | DIN 7346, ISO 13337 | 25 | 97161A176 | 0000 | ||
| 40 | 5 to 5.2 | 1 | 3,900 lbf | Rockwell C42 | ISO 8752 | 100 | 91611A316 | 00000 | ||
6 mm Diameter | ||||||||||
| 40 | 6 | 0.75 | 4,000 lbf | Rockwell C42 | DIN 7346, ISO 13337 | 25 | 97161A195 | 00000 | ||
| 40 | 6 to 6.2 | 1.2 | 5,800 lbf | Rockwell C42 | ISO 8752 | 50 | 91611A413 | 00000 | ||
8 mm Diameter | ||||||||||
| 40 | 8 | 0.75 | 5,300 lbf | Rockwell C42 | DIN 7346, ISO 13337 | 10 | 97161A216 | 0000 | ||
| 40 | 8 to 8.25 | 1.5 | 9,600 lbf | Rockwell C42 | ISO 8752 | 50 | 91611A513 | 00000 | ||
10 mm Diameter | ||||||||||
| 40 | 10 | 1 | 5,300 lbf | Rockwell C42 | DIN 7346, ISO 13337 | 10 | 97161A235 | 00000 | ||
| 40 | 10 to 10.3 | 2 | 15,700 lbf | Rockwell C42 | ISO 8752 | 25 | 91611A613 | 00000 | ||
12 mm Diameter | ||||||||||
| 40 | 12 | 1 | 10,700 lbf | Rockwell C42 | DIN 7346, ISO 13337 | 5 | 97161A252 | 0000 | ||
| 40 | 12 to 12.3 | 2.5 | 23,000 lbf | Rockwell C42 | ISO 8752 | 10 | 91611A713 | 00000 | ||
13 mm Diameter | ||||||||||
| 40 | 13 | 1.2 | 14,800 lbf | Rockwell C42 | DIN 7346, ISO 13337 | 1 | 97161A272 | 0000 | ||
16 mm Diameter | ||||||||||
| 40 | 16 | 1.5 | 22,000 lbf | Rockwell C42 | DIN 7346, ISO 13337 | 1 | 97161A288 | 0000 | ||
21 mm Diameter | ||||||||||
| 40 | 21 | 2 | 37,700 lbf | Rockwell C42 | DIN 7346, ISO 13337 | 1 | 97161A297 | 00000 | ||
Corrosion-Resistant 18-8 Stainless Steel | ||||||||||
3 mm Diameter | ||||||||||
| 40 | 3 to 3.1 | 0.6 | Not Rated | Not Rated | DIN 1481, ISO 8752 | 10 | 91610A414 | 0000 | ||
4 mm Diameter | ||||||||||
| 40 | 4 to 4.2 | 0.8 | Not Rated | Not Rated | DIN 1481, ISO 8752 | 10 | 91610A514 | 0000 | ||
5 mm Diameter | ||||||||||
| 40 | 5 to 5.2 | 1 | Not Rated | Not Rated | DIN 1481, ISO 8752 | 10 | 91610A614 | 0000 | ||
6 mm Diameter | ||||||||||
| 40 | 6 to 6.2 | 1.2 | Not Rated | Not Rated | DIN 1481, ISO 8752 | 10 | 91610A714 | 0000 | ||
8 mm Diameter | ||||||||||
| 40 | 8 to 8.25 | 1.5 | Not Rated | Not Rated | DIN 1481, ISO 8752 | 5 | 91610A814 | 0000 | ||
10 mm Diameter | ||||||||||
| 40 | 10 to 10.3 | 2 | Not Rated | Not Rated | DIN 1481, ISO 8752 | 1 | 91610A923 | 0000 | ||
Coiled Spring Pins
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End View |
The best spring pins for joining parts exposed to vibration and shock. They're often used in power transmission, automation, and other assemblies with constant motion and sudden starts and stops. Because of their spiral shape, they flex to conform to holes that aren’t perfectly round.
Spring Steel—These pins won't deform from stress and vibration. Although they're stronger than stainless steel, they're best for dry environments since moisture will cause them to rust.
Corrosion-Resistant 18-8 Stainless Steel—The choice for wet and outdoor environments, these pins resist rusting. They are strong enough to join most components but won't withstand extreme stress and vibration as well as steel.
Lg., mm | For Hole Dia., mm | Double Shear Breaking Strength, lbf | Min. Hardness | Specs. Met | Pkg. Qty. | Pkg. | |||
|---|---|---|---|---|---|---|---|---|---|
Spring Steel | |||||||||
4 mm Diameter | |||||||||
| 40 | 4.000 to 4.100 | 2,100 | Rockwell C43 | ASME B18.8.3M, DIN 7343, ISO 8750 | 10 | 91612A313 | 00000 | ||
5 mm Diameter | |||||||||
| 40 | 5.000 to 5.100 | 3,300 | Rockwell C43 | DIN 7343, ISO 8750 | 10 | 91612A758 | 0000 | ||
6 mm Diameter | |||||||||
| 40 | 6.000 to 6.100 | 4,900 | Rockwell C43 | DIN 7343, ISO 8750 | 5 | 91612A860 | 0000 | ||
8 mm Diameter | |||||||||
| 40 | 8.000 to 8.200 | 8,700 | Rockwell C43 | DIN 7343, ISO 8750 | 5 | 91612A249 | 0000 | ||
10 mm Diameter | |||||||||
| 40 | 10.000 to 10.100 | 13,900 | Rockwell C43 | ASME B18.8.3M, DIN 7343, ISO 8750 | 1 | 91612A324 | 0000 | ||
Corrosion-Resistant 18-8 Stainless Steel | |||||||||
5 mm Diameter | |||||||||
| 40 | 5.000 to 5.100 | 2,500 | Not Rated | DIN 7343, ISO 8750 | 5 | 91612A190 | 00000 | ||
6 mm Diameter | |||||||||
| 40 | 6.000 to 6.100 | 3,700 | Not Rated | DIN 7343, ISO 8750 | 5 | 91612A201 | 00000 | ||
