Spring Type Spring Type |
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 | Extension |
Length Length |
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OD OD |
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End Type End Type |
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 | Hook |
Wire Diameter Wire Diameter |
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Material Material |
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Rate Rate |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (DefenseAcquisition Regulations Supplement)  |
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Finish Finish | Show |
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Finish Finish | Hide |
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Extended Length @ Maximum Load Extended Length@ Maximum Load |
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Thread Size Thread Size |
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Load Load |
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Thickness Thickness |
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Shank Gender Shank Gender |
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 | Female |
About Rod Ends
More
About Washers
More
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.
For technical drawings and 3-D models, click on a part number.
Load, lbs. | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| OD | Wire Dia. | Extended Lg. @ Max. Load | Min. | Max. | Rate, lbs./in. | Material | Pkg. Qty. | Pkg. | |
0.625" Lg. | |||||||||
| 0.094" | 0.012" | 1.255" | 0.13 | 1.02 | 1.44 | Black-Oxide Music-Wire Steel | 6 | 0000000 | 000000 |
1" Lg. | |||||||||
| 0.125" | 0.016" | 2" | 0.22 | 1.74 | 1.47 | Black-Oxide Music-Wire Steel | 6 | 000000 | 00000 |
| 0.188" | 0.022" | 2" | 0.5 | 2.88 | 2.38 | Black-Oxide Music-Wire Steel | 6 | 0000000 | 0000 |
| 0.25" | 0.026" | 2" | 0.4 | 3.41 | 2.66 | Black-Oxide Music-Wire Steel | 6 | 0000000 | 00000 |
| 0.25" | 0.037" | 1.5" | 1.06 | 9.41 | 16.89 | Black-Oxide Music-Wire Steel | 6 | 0000000 | 00000 |
| 0.375" | 0.041" | 1.5" | 1 | 8.35 | 12.11 | Black-Oxide Music-Wire Steel | 6 | 0000000 | 00000 |
| 0.375" | 0.045" | 1.5" | 0.92 | 10.99 | 19.3 | Black-Oxide Music-Wire Steel | 6 | 0000000 | 00000 |
1.25" Lg. | |||||||||
| 0.375" | 0.055" | 1.75" | 3.2 | 19.29 | 33.45 | Black-Oxide Music-Wire Steel | 6 | 0000000 | 00000 |
1.375" Lg. | |||||||||
| 0.25" | 0.026" | 3.005" | 0.4 | 3.41 | 1.65 | Black-Oxide Music-Wire Steel | 6 | 0000000 | 00000 |
| 0.5" | 0.06" | 2.005" | 3 | 18.63 | 24.3 | Black-Oxide Music-Wire Steel | 6 | 000000 | 00000 |
1.5" Lg. | |||||||||
| 0.25" | 0.031" | 3.5" | 0.77 | 5.72 | 3.61 | Black-Oxide Music-Wire Steel | 6 | 0000000 | 00000 |
| 0.375" | 0.031" | 4" | 0.42 | 3.68 | 1.21 | Black-Oxide Music-Wire Steel | 6 | 0000000 | 00000 |
| 0.375" | 0.037" | 3.5" | 0.59 | 6.17 | 3.03 | Black-Oxide Music-Wire Steel | 6 | 0000000 | 00000 |
1.75" Lg. | |||||||||
| 0.25" | 0.037" | 3" | 1.36 | 9.41 | 7.6 | Black-Oxide Music-Wire Steel | 6 | 0000000 | 00000 |
| 0.375" | 0.041" | 3.5" | 0.8 | 8.35 | 4.04 | Black-Oxide Music-Wire Steel | 6 | 0000000 | 00000 |
| 0.5" | 0.041" | 4.75" | 0.4 | 6.08 | 2.1 | Black-Oxide Music-Wire Steel | 6 | 000000 | 00000 |
2" Lg. | |||||||||
| 0.25" | 0.026" | 5" | 0.46 | 3.41 | 0.97 | Black-Oxide Music-Wire Steel | 6 | 0000000 | 00000 |
| 0.625" | 0.069" | 3.5" | 2.8 | 21.9 | 13.79 | Black-Oxide Music-Wire Steel | 3 | 0000000 | 0000 |
| 0.75" | 0.075" | 3.5" | 2.5 | 22.87 | 15.41 | Black-Oxide Music-Wire Steel | 3 | 00000000 | 0000 |
2.25" Lg. | |||||||||
| 0.375" | 0.055" | 3.5" | 3.92 | 19.31 | 13.38 | Black-Oxide Music-Wire Steel | 6 | 0000000 | 00000 |
| 0.5" | 0.055" | 4.5" | 1.27 | 14.41 | 5.85 | Black-Oxide Music-Wire Steel | 6 | 0000000 | 00000 |
2.5" Lg. | |||||||||
| 0.375" | 0.041" | 6" | 1.19 | 8.35 | 2.4 | Black-Oxide Music-Wire Steel | 6 | 0000000 | 00000 |
| 0.5" | 0.045" | 5.5" | 0.73 | 7.99 | 1.74 | Black-Oxide Music-Wire Steel | 6 | 0000000 | 00000 |
| 0.5" | 0.063" | 4.5" | 2.7 | 21.38 | 10.24 | Black-Oxide Music-Wire Steel | 6 | 0000000 | 00000 |
3" Lg. | |||||||||
| 0.25" | 0.037" | 5" | 1.16 | 9.41 | 3.95 | Black-Oxide Music-Wire Steel | 6 | 0000000 | 00000 |
| 0.375" | 0.045" | 6" | 1.1 | 11 | 3.1 | Black-Oxide Music-Wire Steel | 6 | 0000000 | 00000 |
| 0.625" | 0.063" | 6.5" | 2 | 16.74 | 4.18 | Black-Oxide Music-Wire Steel | 3 | 0000000 | 0000 |
| 0.625" | 0.069" | 6" | 3.7 | 21.93 | 6.77 | Black-Oxide Music-Wire Steel | 3 | 00000000 | 0000 |
| 0.75" | 0.075" | 6" | 2.5 | 22.87 | 6.16 | Black-Oxide Music-Wire Steel | 3 | 00000000 | 00000 |
4.5" Lg. | |||||||||
| 0.625" | 0.069" | 9" | 2.8 | 21.91 | 3.79 | Black-Oxide Music-Wire Steel | 3 | 00000000 | 00000 |
5" Lg. | |||||||||
| 0.5" | 0.063" | 9" | 3 | 21.36 | 4.08 | Black-Oxide Music-Wire Steel | 6 | 0000000 | 00000 |
| 0.75" | 0.075" | 11" | 2.6 | 22.85 | 2.98 | Black-Oxide Music-Wire Steel | 3 | 00000000 | 00000 |
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.
Thread | |||||||
|---|---|---|---|---|---|---|---|
| Size | Min. Lg. | Lg. | Dia. | Hole Dia. | Material | Each | |
| 6-32 | 3/8" | 5/8" | 0.138" | 0.08" | Black-Oxide Steel | 0000000 | 00000 |
| 6-40 | 5/8" | 5/8" | 0.138" | 0.08" | Black-Oxide Steel | 0000000 | 0000 |
| 8-32 | 5/8" | 7/8" | 0.164" | 0.1" | Black-Oxide Steel | 0000000 | 0000 |
| 8-36 | 5/8" | 7/8" | 0.164" | 0.1" | Black-Oxide Steel | 0000000 | 0000 |
| 10-24 | 3/4" | 1 1/8" | 0.19" | 0.12" | Black-Oxide Steel | 0000000 | 0000 |
| 10-32 | 3/4" | 1 1/8" | 0.19" | 0.12" | Black-Oxide Steel | 0000000 | 0000 |
| 1/4"-20 | 7/8" | 1 1/4" | 1/4" | 0.15" | Black-Oxide Steel | 0000000 | 0000 |
| 1/4"-20 | 7/8" | 1 1/4" | 1/4" | 0.268" | Black-Oxide Steel | 0000000 | 0000 |
| 1/4"-28 | 7/8" | 1 1/4" | 1/4" | 0.15" | Black-Oxide Steel | 0000000 | 0000 |
| 3/8"-16 | 1 1/8" | 1 5/8" | 3/8" | 0.22" | Black-Oxide Steel | 0000000 | 0000 |
| 3/8"-16 | 1 1/8" | 1 5/8" | 3/8" | 0.268" | Black-Oxide Steel | 0000000 | 0000 |
| 3/8"-24 | 1 1/8" | 1 5/8" | 3/8" | 0.22" | Black-Oxide Steel | 0000000 | 0000 |
Thread | ||||||||
|---|---|---|---|---|---|---|---|---|
| Size | Pitch, mm | Min. Lg., mm | Lg., mm | Dia., mm | Hole Dia., mm | Material | Each | |
| M3.5 | 0.6 | 10 | 16 | 3.5 | 2 | Black-Oxide Steel | 0000000 | 00000 |
| M4 | 0.7 | 16 | 22 | 4 | 2.5 | Black-Oxide Steel | 0000000 | 0000 |
| M5 | 0.8 | 19 | 28 | 5 | 3 | Black-Oxide Steel | 0000000 | 0000 |
| M6 | 1 | 22 | 32 | 6 | 4 | Black-Oxide Steel | 0000000 | 0000 |
| M8 | 1.25 | 25 | 38 | 8 | 5 | Black-Oxide Steel | 0000000 | 0000 |
| M10 | 1.5 | 28 | 41 | 10 | 6 | Black-Oxide Steel | 0000000 | 0000 |
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.
Thread | ||||||||
|---|---|---|---|---|---|---|---|---|
| Size | Min. Lg. | Lg. | Dia. | Hole Dia. | Hex Size | Material | Each | |
| 6-32 | 3/8" | 5/8" | 0.138" | 0.08" | 0.035" | Black-Oxide Steel | 000000000 | 000000 |
| 6-40 | 5/8" | 5/8" | 1/8" | 0.08" | 0.035" | Black-Oxide Steel | 000000000 | 00000 |
| 8-32 | 5/8" | 7/8" | 0.164" | 0.1" | 0.05" | Black-Oxide Steel | 000000000 | 00000 |
| 8-36 | 5/8" | 7/8" | 1/8" | 0.1" | 0.05" | Black-Oxide Steel | 000000000 | 00000 |
| 10-24 | 3/4" | 1 1/8" | 1/4" | 0.12" | 0.05" | Black-Oxide Steel | 000000000 | 00000 |
| 10-32 | 3/4" | 1 1/8" | 1/4" | 0.12" | 1/16" | Black-Oxide Steel | 000000000 | 00000 |
| 1/4"-20 | 7/8" | 1 1/4" | 1/4" | 0.15" | 5/64" | Black-Oxide Steel | 000000000 | 00000 |
| 1/4"-28 | 7/8" | 1 1/4" | 1/4" | 0.15" | 5/64" | Black-Oxide Steel | 000000000 | 00000 |
| 3/8"-16 | 1 1/8" | 1 5/8" | 3/8" | 0.22" | 1/8" | Black-Oxide Steel | 000000000 | 00000 |
| 3/8"-24 | 1 1/8" | 1 5/8" | 3/8" | 0.22" | 1/8" | Black-Oxide Steel | 000000000 | 00000 |
Thread | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Size | Pitch, mm | Min. Lg., mm | Lg., mm | Dia., mm | Hole Dia., mm | Hex Size, mm | Material | Each | |
| M3.5 | 0.6 | 10 | 16 | 3.5 | 2 | 0.9 | Black-Oxide Steel | 000000000 | 000000 |
| M4 | 0.7 | 16 | 22 | 4 | 2.5 | 1.3 | Black-Oxide Steel | 000000000 | 00000 |
| M5 | 0.8 | 19 | 28 | 5 | 3 | 1.5 | Black-Oxide Steel | 000000000 | 00000 |
| M6 | 1 | 22 | 32 | 6 | 4 | 2 | Black-Oxide Steel | 000000000 | 00000 |
| M8 | 1.25 | 25 | 38 | 8 | 5 | 2.5 | Black-Oxide Steel | 000000000 | 00000 |
| M10 | 1.5 | 28 | 41 | 10 | 6 | 3 | Black-Oxide Steel | 000000000 | 00000 |
Die Spring Screw Caps
In addition to providing a backing for springs, these screw caps can also be used to control spring tension. Install them by drilling and tapping a hole through your die set.
For technical drawings and 3-D models, click on a part number.
| Thread Size | Hex Wd. | Thick. | Material | Each | |
| 7/16"-20 | 3/16" | 1/4" | Black-Oxide Steel | 0000000 | 00000 |
| 1/2"-20 | 1/4" | 5/16" | Black-Oxide Steel | 0000000 | 0000 |
| 9/16"-18 | 1/4" | 5/16" | Black-Oxide Steel | 0000000 | 0000 |
| 5/8"-18 | 1/4" | 5/16" | Black-Oxide Steel | 0000000 | 0000 |
| 3/4"-16 | 1/4" | 5/16" | Black-Oxide Steel | 00000000 | 0000 |
| 7/8"-14 | 1/4" | 5/16" | Black-Oxide Steel | 00000000 | 0000 |
| 1"-14 | 1/4" | 5/16" | Black-Oxide Steel | 00000000 | 0000 |
| 1 1/8"-12 | 1/4" | 5/16" | Black-Oxide Steel | 00000000 | 0000 |
| 1 1/4"-12 | 1/4" | 5/16" | Black-Oxide Steel | 00000000 | 0000 |
| 1 3/8"-12 | 1/2" | 1/2" | Black-Oxide Steel | 00000000 | 00000 |
Triple-Wave Washers
With three points of surface contact, these washers provide more stability than single-wave washers. They are curved and flexible to act like springs, compensating for tolerance variations and uneven surfaces. You can also use them to damp vibration.
18-8 stainless steel washers have good chemical resistance and may be mildly magnetic.
For technical drawings and 3-D models, click on a part number.
| For Screw Size | ID | OD | Thick. | Overall Ht. | Hardness | Pkg. Qty. | Pkg. | |
Black-Oxide 18-8 Stainless Steel | ||||||||
|---|---|---|---|---|---|---|---|---|
| No. 2 | 0.100" | 0.171" | 0.010" | 0.040" | Rockwell C40 | 10 | 000000000 | 000000 |
| No. 4 | 0.130" | 0.255" | 0.005" | 0.025" | Rockwell C40 | 10 | 000000000 | 00000 |
| No. 5 | 0.133" | 0.192" | 0.005" | 0.035" | Rockwell C40 | 10 | 000000000 | 00000 |
| No. 6 | 0.150" | 0.245" | 0.006" | 0.050" | Rockwell C40 | 10 | 000000000 | 00000 |
| No. 8 | 0.200" | 0.250" | 0.006" | 0.055" | Rockwell C40 | 10 | 000000000 | 00000 |
| No. 10 | 0.208" | 0.385" | 0.005" | 0.041" | Rockwell C40 | 10 | 000000000 | 00000 |
Single-Wave Washers
These curved, flexible washers act like springs to compensate for tolerance variations and uneven surfaces. You can also use them to damp vibration.
18-8 stainless steel washers have good chemical resistance and may be mildly magnetic.
For technical drawings and 3-D models, click on a part number.
| For Screw Size | ID | OD | Thick. | Overall Ht. | Hardness | Pkg. Qty. | Pkg. | |
Black-Oxide 18-8 Stainless Steel | ||||||||
|---|---|---|---|---|---|---|---|---|
| No. 0 | 0.072" | 0.170" | 0.010" | 0.050" | Rockwell C40 | 10 | 000000000 | 000000 |
| No. 2 | 0.095" | 0.130" | 0.004" | 0.040" | Rockwell C40 | 10 | 000000000 | 00000 |
| No. 4 | 0.121" | 0.240" | 0.008" | 0.056" | Rockwell C40 | 10 | 000000000 | 00000 |
| No. 5 | 0.135" | 0.245" | 0.004" | 0.055" | Rockwell C40 | 10 | 000000000 | 00000 |
| No. 6 | 0.148" | 0.270" | 0.005" | 0.062" | Rockwell C40 | 10 | 000000000 | 00000 |
| No. 8 | 0.165" | 0.285" | 0.006" | 0.053" | Rockwell C40 | 10 | 000000000 | 00000 |
| No. 10 | 0.200" | 0.300" | 0.010" | 0.061" | Rockwell C40 | 10 | 000000000 | 00000 |
| 1/4" | 0.260" | 0.485" | 0.010" | 0.070" | Rockwell C40 | 10 | 000000000 | 00000 |
Metric General Purpose Washers
Use these metric washers to evenly distribute the load under bolt or screw heads and nuts when fastening. They can also act as spacers.
Stainless steel washers are more corrosion resistant than steel washers, and almost as strong. 18-8 and 17-7 PH stainless steel washers will hold up in humid, damp, and washdown environments, but will corrode if exposed to salt water or chemicals.Black-oxide 18-8 stainless steel washers have a matte-black finish.
Washers that meet ISO 7089, 7091, and 7092 (formerly DIN 125, 126, and 433), meet international standards for fastener dimensions.
For technical drawings and 3-D models, click on a part number.
| For Screw Size | ID, mm | OD, mm | Thick., mm | Hardness | Specifications Met | Pkg. Qty. | Pkg. | |
Black-Oxide 18-8 Stainless Steel | ||||||||
|---|---|---|---|---|---|---|---|---|
| M3 | 3.2 | 7.0 | 0.4-0.6 | Rockwell B75 | DIN 125, ISO 7089 | 100 | 000000000 | 00000 |
| M4 | 4.3 | 9.0 | 0.7-0.9 | Rockwell B75 | DIN 125, ISO 7089 | 100 | 000000000 | 0000 |
| M5 | 5.3 | 10.0 | 0.9-1.1 | Rockwell B75 | DIN 125, ISO 7089 | 100 | 000000000 | 0000 |
| M6 | 6.4 | 12.0 | 1.4-1.8 | Rockwell B75 | DIN 125, ISO 7089 | 100 | 000000000 | 0000 |
Internally Threaded Super-Swivel Ball Joint Rod Ends
With at least 55° of ball swivel, these rod ends accommodate greater misalignment than any other internally threaded rod end we offer. Made of black-oxide steel, they generally handle higher loads than stainless steel, aluminum, and nylon rod ends and offer some corrosion resistance. A PTFE liner allows smooth ball rotation and eliminates the need for lubrication.
For technical drawings and 3-D models, click on a part number.
| Shank Thread Size | ID | Max. Ball Swivel | O'all Wd. | O'all Thick. | Shank Center Lg. | Shank Thread Lg. | Static Radial Load Cap., lbs. | Material | Choose a Shank Thread Direction | Each | |
| 3/8"-24 | 3/8" | 55° | 1 1/8" | 7/8" | 2 1/8" | 1 1/16" | 10,150 | Black-Oxide Alloy Steel | 000000 | 000000 | |
| 1/2"-20 | 1/2" | 65° | 1 1/2" | 1 1/4" | 2 5/8" | 1 3/8" | 15,000 | Black-Oxide Alloy Steel | 000000 | 00000 | |
| 5/8"-18 | 5/8" | 64° | 1 3/4" | 1 3/8" | 2 7/8" | 1 9/16" | 19,350 | Black-Oxide Alloy Steel | 000000 | 00000 | |
| 3/4"-16 | 3/4" | 61° | 2" | 1 1/2" | 3 3/8" | 1 3/4" | 27,000 | Black-Oxide Alloy Steel | 0000000 | 00000 |
Internally Threaded Rod End Bolts with Partial Threads
Also known as swing bolts and eyebolts, rod end bolts have no moving parts. They're designed to make pivoting or hinge movements in applications that don't need to compensate for misalignment.
For technical drawings and 3-D models, click on a part number.
| Shank Thread Size | ID | O'all Wd. | Shank Center Lg. | Shank Thread Lg. | O'all Thick. | Tensile Strength, psi | Material | Each | |
Right-Hand Threaded Shank | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 1/4"-20 | 3/16" | 1/2" | 2" | 3/4" | 9/32" | 75,000 | Black-Oxide Carbon Steel | 0000000 | 000000 |
| 1/4"-20 | 1/4" | 1/2" | 2" | 3/4" | 9/32" | 75,000 | Black-Oxide Carbon Steel | 0000000 | 00000 |
| 3/8"-16 | 3/8" | 3/4" | 3" | 1" | 7/16" | 75,000 | Black-Oxide Carbon Steel | 0000000 | 00000 |
| 1/2"-13 | 3/8" | 1" | 3 3/4" | 1" | 9/16" | 75,000 | Black-Oxide Carbon Steel | 0000000 | 00000 |
| 1/2"-13 | 3/8" | 1" | 4" | 1" | 9/16" | 75,000 | Black-Oxide Carbon Steel | 0000000 | 00000 |
| 1/2"-13 | 1/2" | 1" | 3 3/4" | 1" | 9/16" | 75,000 | Black-Oxide Carbon Steel | 0000000 | 00000 |
| 5/8"-11 | 5/8" | 1 1/4" | 4 1/2" | 1" | 11/16" | 75,000 | Black-Oxide Carbon Steel | 0000000 | 00000 |
| 5/8"-11 | 5/8" | 1 1/4" | 5" | 1" | 11/16" | 75,000 | Black-Oxide Carbon Steel | 0000000 | 00000 |
| 5/8"-11 | 5/8" | 1 1/4" | 6" | 1 1/2" | 11/16" | 75,000 | Black-Oxide Carbon Steel | 0000000 | 00000 |
| 3/4"-10 | 3/4" | 1 1/2" | 4 1/2" | 1" | 13/16" | 75,000 | Black-Oxide Carbon Steel | 0000000 | 00000 |