Spring Type Spring Type 

Extension  
System of Measurement System of Measurement 


Length Length  Show 


Length Length  Hide 

End Type End Type 

Loop  
Hook  
Straight Wire  
Extended Length @ Maximum Load Extended Length@ Maximum Load 



Material Material 


Finish Finish 


Rate Rate 


Load Load 


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.
Zincplated springs have mild corrosion resistance.
For technical drawings and 3D models, click on a part number.
Load, lbs.  

OD  Wire Dia.  Extended Lg. @ Max. Load  Min.  Max.  Rate, lbs./in.  Material  Pkg. Qty.  Pkg.  
8.5" Lg.  
0.344"  0.048"  13.375"  2.64  10.88  1.69  ZincPlated SpringTempered Steel  3  00000000  00000 
0.438"  0.054"  12.06"  2.75  8.12  1.51  ZincPlated SpringTempered Steel  3  00000000  00000 
0.813"  0.062"  22.92"  0.43  6.63  0.43  ZincPlated SpringTempered Steel  3  00000000  00000 
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.
For technical drawings and 3D models, click on a part number.
Load, lbs.  

OD  Wire Dia.  Extended Lg. @ Max. Load  Min.  Max.  Rate, lbs./in.  Material  Pkg. Qty.  Pkg.  
8.5" Lg.  
1"  0.105"  13.43"  7.52  23.43  3.23  302 Stainless Steel  1  000000000  000000 
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.
Zincplated springs have mild corrosion resistance.
For technical drawings and 3D models, click on a part number.
Load, lbs.  

OD  Wire Dia.  Extended Lg. @ Max. Load  Min.  Max.  Rate, lbs./in.  Material  Pkg. Qty.  Pkg.  
8.5" Lg.  
1"  0.106"  15.64"  7.09  33.42  3.6  ZincPlated SpringTempered Steel  1  00000000  00000 
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.
For technical drawings and 3D models, click on a part number.
Load, lbs.  

OD  Wire Dia.  Extended Lg. @ Max. Load  Min.  Max.  Rate, lbs./in.  Material  Pkg. Qty.  Pkg.  
8.5" Lg.  
1"  0.105"  15.3"  6.95  30.34  3.44  302 Stainless Steel  1  00000000  000000 
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 3D models, click on a part number.
Load, lbs.  

Style  Lg.  OD  Wire Dia.  Extended Lg @ Max. Load  Min.  Max.  Rate, lbs./in.  Material  Pkg. Qty.  Pkg.  
Hook and Straight Wire  
F  8.5"  0.75"  0.094"  13.5"  4.5  20.5  17.1  Galvanized SpringTempered Steel  10  0000000  000000 
These zincplated steel springs have mild corrosion resistance. All have drawbars to prevent overextending, which can cause failure.
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 3D models, click on a part number.
Made of stainless steel, these springs are more corrosion resistant than steel extension springs. All have drawbars to prevent overextending, which can cause failure.
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 3D models, click on a part number.