System of Measurement System of Measurement |
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Length Length | Show |
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Length Length | Hide |
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Spring Type Spring Type |
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| Compression |
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| Extension |
End Type End Type |
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| Closed and Ground | Closed |
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| Loop | Hook |
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| Elongated Hook | Plain |
Material Material |
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Rate Rate |
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Extended Length @ Maximum Load Extended Length@ Maximum Load |
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Finish Finish |
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Load Load |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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Minimum Thread Length Minimum Thread Length |
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For Spring Type For Spring Type |
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Hex Size Hex Size |
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Compression Springs
As you squeeze a compression spring, it pushes back to return to its original length. Rate is the amount of force required for every inch of compression or, for metric springs, millimeter of compression. The higher the rate, the harder it is to compress the spring.
Zinc-plated springs have mild corrosion resistance.
Springs with closed and ground ends sit flat, so they won’t buckle.
For technical drawings and 3-D models, click on a part number.
Corrosion-Resistant Compression Springs
These springs are more corrosion resistant than standard compression springs. They're also easier to compress than standard compression springs. As you squeeze a compression spring, it pushes back to return to its original length. Rate is the amount of force required for every inch of compression or, for metric springs, millimeter of compression. The higher the rate, the harder it is to compress the spring.
302 stainless steel springs have good corrosion resistance.
For technical drawings and 3-D models, click on a part number.
| OD | ID | Wire Dia. | Compressed Lg. @ Max. Load | Max. Load, lbs. | Rate, lbs./in. | Material | End Type | Pkg. Qty. | Pkg. | |
1.625" Lg. | ||||||||||
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| 0.781" | 0.541" | 0.12" | 1.08" | 81.43 | 149.41 | 302 Stainless Steel | Closed | 6 | 00000000 | 000000 |
Ultra-High-Load Fastener-Mount Compression Springs
For the heaviest loads, these springs have more than double the load capacity of High-Load Fastener-Mount Compression Springs. Secure by inserting a fastener through the hole at the base. Springs are a polyester/rubber blend that is wear, oil, and fuel resistant.
Energy is calculated in one of two ways. For an object that is dropped, energy equals the weight of the item multiplied by distance dropped. For an object moving horizontally, energy equals half of the mass of the item multiplied by velocity squared (1/2 mv²).
For technical drawings and 3-D models, click on a part number.
| Lg. | OD | ID | Base Dia. | Compressed Lg. @ Max. Load | Compressed OD @ Max. Load | Max. Load, lbs. | Energy Capacity, in.-lbs. | Mounting Hole Dia. (A) | Mounting Fasteners Included | Material | Hardness | Temperature Range, °F | Each | |
| 1.625" | 1.8" | 0.93" | 1.58" | 0.88" | 2.33" | 3,000 | 1,100 | 0.54" | No | Polyester/Rubber Blend | Durometer 55D | -40° to 120° | 0000000 | 000000 |
Extension Springs with Loop Ends
As you stretch an extension spring, it gets harder to pull. Minimum load is the amount of force required to start to extend the spring. Maximum load is the amount of force required to fully extend the spring. Rate is the amount of force required for every inch or millimeter of extension.
For technical drawings and 3-D models, click on a part number.
Load, lbs. | |||||||||
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| OD | Wire Dia. | Extended Lg. @ Max. Load | Min. | Max. | Rate, lbs./in. | Material | Pkg. Qty. | Pkg. | |
1.625" Lg. | |||||||||
| 0.18" | 0.018" | 5.03" | 0.1 | 1.7 | 0.45 | Music-Wire Steel | 1 | 00000000 | 00000 |
Corrosion-Resistant Extension Springs with Loop Ends
Made of stainless steel, these springs are more corrosion resistant than steel springs. They're also easier to extend than steel springs. As you stretch an extension spring, it gets harder to pull. Minimum load is the amount of force required to start to extend the spring. Maximum load is the amount of force required to fully extend the spring. Rate is the amount of force required for every inch or millimeter of extension.
316 stainless steel springs have excellent corrosion resistance.
For technical drawings and 3-D models, click on a part number.
Load, lbs. | |||||||||
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| OD | Wire Dia. | Extended Lg. @ Max. Load | Min. | Max. | Rate, lbs./in. | Material | Pkg. Qty. | Pkg. | |
1.625" Lg. | |||||||||
| 0.188" | 0.014" | 4.093" | 0.03 | 0.28 | 0.12 | 316 Stainless Steel | 1 | 00000000 | 00000 |
| 0.188" | 0.016" | 3.393" | 0.07 | 0.42 | 0.24 | 316 Stainless Steel | 1 | 00000000 | 0000 |
| 0.188" | 0.018" | 2.714" | 0.12 | 0.52 | 0.45 | 316 Stainless Steel | 1 | 00000000 | 0000 |
| 0.188" | 0.02" | 2.41" | 0.18 | 0.7 | 0.79 | 316 Stainless Steel | 1 | 0000000 | 0000 |
Extension Springs with Hook Ends
As you stretch an extension spring, it gets harder to pull. Minimum load is the amount of force required to start to extend the spring. Maximum load is the amount of force required to fully extend the spring. Rate is the amount of force required for every inch or mm of extension.
Zinc-plated springs have mild corrosion resistance.
For technical drawings and 3-D models, click on a part number.
Corrosion-Resistant Extension Springs with Hook Ends
Made of stainless steel, these springs are more corrosion resistant than steel springs. They're also easier to extend than steel springs. As you stretch an extension spring, it gets harder to pull. Minimum load is the amount of force required to start to extend the spring. Maximum load is the amount of force required to fully extend the spring. Rate is the amount of force required for every inch of extension or, for metric springs, millimeter of compression.
302 stainless steel springs have good corrosion resistance.
For technical drawings and 3-D models, click on a part number.
Extension Springs with Special Ends
For specialty applications and connections, these springs have unique end types.
As you stretch an extension spring, it gets harder to pull. Minimum load is the amount of force required to start to extend the spring. Maximum load is the amount of force required to fully extend the spring. Rate is the amount of force required for every inch of extension.
For technical drawings and 3-D models, click on a part number.
Load, lbs. | |||||||||||
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| Style | Lg. | OD | Wire Dia. | Extended Lg @ Max. Load | Min. | Max. | Rate, lbs./in. | Material | Pkg. Qty. | Pkg. | |
Elongated Hook and Loop | |||||||||||
| E | 1 5/8" | 0.25" | 0.039" | 1.895" | 1.95 | 7.29 | 19.42 | Galvanized Spring-Tempered Steel | 6 | 00000000 | 000000 |
Extension Spring Stud Anchors
A black-oxide finish provides these steel anchors with mild corrosion resistance. Attach an extension spring to a stud and then thread the stud into your part for a secure connection.
For technical drawings and 3-D models, click on a part number.
Corrosion-Resistant Extension Spring Stud Anchors
These stainless steel anchor studs offer excellent corrosion resistance. Attach an extension spring to a stud and then thread the stud into your part for a secure connection.
For technical drawings and 3-D models, click on a part number.
Swiveling Extension Spring Stud Anchors
A black-oxide finish provides these steel anchors with mild corrosion resistance. The head swivels 360° so the spring stays straight and properly coiled. Attach an extension spring to a stud and then thread the stud into your part for a secure connection. To make tightening easier, anchors have a hex socket on the bottom and wrench flats at the top of the threads.
For technical drawings and 3-D models, click on a part number.
Corrosion-Resistant Swiveling Extension Spring Stud Anchors
These stainless steel anchor studs offer excellent corrosion resistance. The head swivels 360° so the spring stays straight and properly coiled. Attach an extension spring to a stud and then thread the stud into your part for a secure connection. To make tightening easier, anchors have a hex socket on the bottom and wrench flats at the top of the threads.
For technical drawings and 3-D models, click on a part number.
Slotted Spring Pins
Also known as roll, tension, split, and expansion pins, these pins have a slot along one side that you squeeze closed to install them into unthreaded holes. Once installed, they expand slightly, creating outward tension that holds them tight against the hole wall. These pins absorb shock and vibration in your system, and keep parts from loosening. They are often used as hinge pins, or to hold springs and power transmission components in place.
Install these pins into a hole slightly smaller than the pin diameter. They have at least one chamfered end, which means the end is angled to make insertion easier.
Breaking strength is measured as double shear, which is the amount of force required to break a pin into three pieces.
Steel pins are strong and wear resistant. Pins with a black-phosphate or zinc-plated finish have an outer layer to protect the steel underneath from rust.
18-8 stainless steel pins offer a balance of strength and corrosion resistance.
420 stainless steel pins are as strong and wear resistant as steel, with the addition of corrosion resistance in wet environments.
Passivated pins offer added protection against corrosion and oxidation.
Pins that meet ASME B18.8.2 specifications are made to ASME standards for material and dimensions.
For technical drawings and 3-D models, click on a part number.
| Lg. | For Hole Dia. | Wall Thick. | Min. Hardness | Breaking Strength, lbs. | Specifications Met | Pkg. Qty. | Pkg. | |
1/8" Dia. | ||||||||
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| 1 5/8" | 0.125"-0.129" | 0.028" | Rockwell C43 | 1,800 | ASME B18.8.2 | 100 | 000000000 | 00000 |
3/16" Dia. | ||||||||
| 1 5/8" | 0.187"-0.192" | 0.04" | Rockwell C43 | 4,100 | ASME B18.8.2 | 100 | 000000000 | 0000 |
1/4" Dia. | ||||||||
| 1 5/8" | 0.25"-0.256" | 0.048" | Rockwell C43 | 7,000 | ASME B18.8.2 | 50 | 000000000 | 0000 |
| Lg. | For Hole Dia. | Wall Thick. | Min. Hardness | Breaking Strength, lbs. | Specifications Met | Pkg. Qty. | Pkg. | |
1/8" Dia. | ||||||||
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| 1 5/8" | 0.125"-0.129" | 0.028" | Rockwell C43 | 1,800 | ASME B18.8.2 | 100 | 000000000 | 00000 |
3/16" Dia. | ||||||||
| 1 5/8" | 0.187"-0.192" | 0.04" | Rockwell C43 | 4,100 | ASME B18.8.2 | 100 | 000000000 | 00000 |
1/4" Dia. | ||||||||
| 1 5/8" | 0.25"-0.256" | 0.048" | Rockwell C43 | 7,000 | ASME B18.8.2 | 50 | 000000000 | 0000 |
| Lg. | For Hole Dia. | Wall Thick. | Min. Hardness | Breaking Strength, lbs. | Passivation | Specifications Met | Pkg. Qty. | Pkg. | |
1/8" Dia. | |||||||||
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| 1 5/8" | 0.125"-0.129" | 0.028" | Not Rated | 1,000 | Passivated | ASME B18.8.2 | 50 | 000000000 | 000000 |
3/16" Dia. | |||||||||
| 1 5/8" | 0.187"-0.192" | 0.04" | Not Rated | 2,400 | Passivated | ASME B18.8.2 | 25 | 000000000 | 0000 |
1/4" Dia. | |||||||||
| 1 5/8" | 0.25"-0.256" | 0.048" | Not Rated | 4,100 | Not Passivated | ASME B18.8.2 | 25 | 000000000 | 00000 |
| Lg. | For Hole Dia. | Wall Thick. | Min. Hardness | Breaking Strength, lbs. | Passivation | Specifications Met | Pkg. Qty. | Pkg. | |
1/8" Dia. | |||||||||
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| 1 5/8" | 0.125"-0.129" | 0.028" | Rockwell C43 | 1,800 | Passivated | ASME B18.8.2 | 50 | 000000000 | 00000 |
3/16" Dia. | |||||||||
| 1 5/8" | 0.187"-0.192" | 0.04" | Rockwell C43 | 4,100 | Passivated | ASME B18.8.2 | 25 | 000000000 | 0000 |
1/4" Dia. | |||||||||
| 1 5/8" | 0.25"-0.256" | 0.048" | Rockwell C43 | 7,000 | Passivated | ASME B18.8.2 | 25 | 000000000 | 00000 |