Extension Springs

Absorbs and stores energy as well as creates a resistance to a pulling force.

Style

Hard Drawn MB

Hard drawn MB extension springs provide resistance to a tension force or load that is applied to the spring and are used in low stress applications especially in the automotive, medical and electronic industries.
Music Wire

Music wire extension springs are used in high stress applications to provide resistance to a tension force or load that is applied to the spring.
Wire Material: Brass
Style: Undefined
Finish: OIL
Finish: OIL
End Style Outer Diameter Load Spring Constant SKU Pkg Qty Price
End Style Outer Diameter Load Spring Constant SKU Pkg Qty Price
0.235" 99840449 PKG
Wire Material: Stainless Steel
Style: Undefined
Finish: Plain
Finish: Plain
End Style Outer Diameter Load Spring Constant SKU Pkg Qty Price
End Style Outer Diameter Load Spring Constant SKU Pkg Qty Price
Full Loop 6.00mm 99856620 PKG
Full Loop 4.00mm 99856570 PKG
Full Loop 7.50mm 99856612 PKG
Open - No Hook 0.125" 99851270 PKG
Open - No Hook 0.187" 99851592 PKG
Open - No Hook 0.187" 99851595 PKG
Open - No Hook 0.250" 99851985 PKG
Open - No Hook 0.500" 99852848 PKG
Finish: Passivated
Finish: Passivated
End Style Outer Diameter Load Spring Constant SKU Pkg Qty Price
End Style Outer Diameter Load Spring Constant SKU Pkg Qty Price
Full Loop 0.500" 99852707 PKG
Full Loop 0.500" 99852782 PKG
Full Loop 0.500" 99852788 PKG
Full Loop 0.500" 99852806 PKG
Full Loop 0.500" 99852865 PKG
Full Loop 0.500" 99852874 PKG
Full Loop 0.500" 99852886 PKG
Full Loop 0.500" 99852925 PKG
Full Loop 0.500" 99852958 PKG
Full Loop 0.500" 99852981 PKG
Full Loop 0.500" 99852737 PKG
Full Loop 0.750" 99853282 PKG
Full Loop 0.750" 99853309 PKG
Full Loop 1.000" 99853664 PKG
Full Loop 1.000" 99853715 PKG
Full Loop 0.063" 99850932 PKG
Full Loop 0.063" 99850905 PKG
Full Loop 0.063" 99850902 PKG
Full Loop 0.094" 99850977 PKG
Full Loop 0.094" 99850983 PKG
Full Loop 0.094" 99850989 PKG
Full Loop 0.094" 99850998 PKG
Full Loop 0.094" 99851016 PKG
Full Loop 0.094" 99851022 PKG
Full Loop 0.094" 99851058 PKG
Full Loop 0.094" 99851079 PKG
Full Loop 0.120" 99851142 PKG
Full Loop 0.120" 99851238 PKG
Full Loop 0.120" 99851202 PKG
Full Loop 0.120" 99851199 PKG
Full Loop 0.120" 99851190 PKG
Full Loop 0.120" 99851169 PKG
Full Loop 0.120" 99851160 PKG
Full Loop 0.120" 99851103 PKG
Full Loop 0.120" 99851130 PKG
Full Loop 0.120" 99851124 PKG
Full Loop 0.120" 99851121 PKG
Full Loop 0.120" 99851112 PKG
Full Loop 0.120" 99851106 PKG
Full Loop 0.120" 99851127 PKG
Full Loop 0.120" 99851100 PKG
Full Loop 0.180" 99851425 PKG
Full Loop 0.180" 99851368 PKG
Full Loop 0.180" 99851377 PKG
Full Loop 0.180" 99851380 PKG
Full Loop 0.180" 99851383 PKG
Full Loop 0.180" 99851407 PKG
Full Loop 0.180" 99851479 PKG
Full Loop 0.180" 99851446 PKG
Full Loop 0.180" 99851455 PKG
Full Loop 0.180" 99851485 PKG
Full Loop 0.180" 99851512 PKG
Full Loop 0.180" 99851545 PKG
Full Loop 0.180" 99851362 PKG
Full Loop 0.180" 99851365 PKG
Full Loop 0.180" 99851476 PKG
Full Loop 0.180" 99851338 PKG
Full Loop 0.180" 99851296 PKG
Full Loop 0.180" 99851335 PKG
Full Loop 0.180" 99851278 PKG
Full Loop 0.180" 99851287 PKG
Full Loop 0.180" 99851290 PKG
Full Loop 0.180" 99851293 PKG
Full Loop 0.180" 99851275 PKG
Full Loop 0.180" 99851299 PKG
Full Loop 0.180" 99851332 PKG
Full Loop 0.180" 99851305 PKG
Full Loop 0.180" 99851308 PKG
Full Loop 0.180" 99851311 PKG
Full Loop 0.180" 99851326 PKG
Full Loop 0.180" 99851302 PKG
Full Loop 0.240" 99851778 PKG
Full Loop 0.240" 99851784 PKG
Full Loop 0.240" 99851832 PKG
Full Loop 0.240" 99851853 PKG
Full Loop 0.240" 99851862 PKG
Full Loop 0.240" 99851934 PKG
Full Loop 0.240" 99851898 PKG
Full Loop 0.240" 99851925 PKG
Full Loop 0.240" 99851928 PKG
Full Loop 0.240" 99851937 PKG
Full Loop 0.240" 99851940 PKG
Full Loop 0.240" 99851943 PKG
Full Loop 0.240" 99851745 PKG
Full Loop 0.240" 99851754 PKG
Full Loop 0.240" 99851883 PKG
Full Loop 0.240" 99851736 PKG
Full Loop 0.240" 99851640 PKG
Full Loop 0.240" 99851733 PKG
Full Loop 0.240" 99851604 PKG
Full Loop 0.240" 99851610 PKG
Full Loop 0.240" 99851619 PKG
Full Loop 0.240" 99851628 PKG
Full Loop 0.240" 99851634 PKG
Full Loop 0.240" 99851649 PKG
Full Loop 0.240" 99851652 PKG
Full Loop 0.240" 99851655 PKG
Full Loop 0.240" 99851661 PKG
Full Loop 0.240" 99851676 PKG
Full Loop 0.240" 99851682 PKG
Full Loop 0.240" 99851688 PKG
Full Loop 0.240" 99851706 PKG
Full Loop 0.300" 99852071 PKG
Full Loop 0.300" 99852107 PKG
Full Loop 0.300" 99852008 PKG
Full Loop 0.300" 99852068 PKG
Full Loop 0.300" 99852038 PKG
Full Loop 0.300" 99852035 PKG
Full Loop 0.360" 99852527 PKG
Full Loop 0.360" 99852365 PKG
Full Loop 0.360" 99852497 PKG
Full Loop 0.360" 99852446 PKG
Full Loop 0.360" 99852431 PKG
Full Loop 0.360" 99852428 PKG
Full Loop 0.360" 99852422 PKG
Full Loop 0.360" 99852416 PKG
Full Loop 0.360" 99852413 PKG
Full Loop 0.360" 99852386 PKG
Full Loop 0.360" 99852155 PKG
Full Loop 0.360" 99852332 PKG
Full Loop 0.360" 99852317 PKG
Full Loop 0.360" 99852299 PKG
Full Loop 0.360" 99852257 PKG
Full Loop 0.360" 99852254 PKG
Full Loop 0.360" 99852245 PKG
Full Loop 0.360" 99852239 PKG
Full Loop 0.360" 99852197 PKG
Full Loop 0.360" 99852164 PKG
Full Loop 0.360" 99852158 PKG
Full Loop 0.360" 99852131 PKG
Full Loop 0.420" 99852616 PKG
Full Loop 0.650" 99853053 PKG
Full Loop 1.500" 99854004 PKG
Wire Material: Steel
Style: Hard Drawn MB
Finish: Zinc
Finish: Zinc
End Style Outer Diameter Load Spring Constant SKU Pkg Qty Price
End Style Outer Diameter Load Spring Constant SKU Pkg Qty Price
Loop 0.688" 15.72 lb 0.78 lb/in 110166823 PKG
Loop 0.688" 22.39 lb 11.62 lb/in 110166824 PKG
Loop 1.000" 23.43 lb 4.34 lb/in 110166837 PKG
Wire Material: Steel
Style: Music Wire
Finish: Plain
Finish: Plain
End Style Outer Diameter Load Spring Constant SKU Pkg Qty Price
End Style Outer Diameter Load Spring Constant SKU Pkg Qty Price
Loop 0.156" 1.67 lb 1.19 lb/in 0166733 EA
Loop 0.187" 0.63 lb 0.10 lb/in 110166737 PKG
Loop 0.187" 0.75 lb 0.14 lb/in 0166740 EA
Loop 0.187" 0.75 lb 0.14 lb/in 110166740 PKG
Loop 0.187" 0.75 lb 0.20 lb/in 0166739 EA
Loop 0.187" 2.62 lb 2.24 lb/in 0166742 EA
Loop 0.218" 0.65 lb 0.09 lb/in 110166746 PKG
Loop 0.218" 1.80 lb 0.61 lb/in 110166752 PKG
Loop 0.281" 0.51 lb 0.04 lb/in 0166771 EA
Loop 0.281" 0.51 lb 0.06 lb/in 0166770 EA
Loop 0.281" 1.79 lb 0.44 lb/in 0166774 CS
Loop 0.281" 1.79 lb 0.92 lb/in 0166772 EA
Loop 0.312" 1.28 lb 0.21 lb/in 110166784 PKG
Loop 0.312" 1.62 lb 0.32 lb/in 0166787 EA
Loop 0.312" 1.62 lb 0.48 lb/in 0166786 EA
Loop 0.312" 1.62 lb 0.70 lb/in 0166785 EA
Loop 0.343" 1.48 lb 0.38 lb/in 0166794 EA
Finish: Zinc
Finish: Zinc
End Style Outer Diameter Load Spring Constant SKU Pkg Qty Price
End Style Outer Diameter Load Spring Constant SKU Pkg Qty Price
Loop 0.218" 0.27 lb 0.27 lb/in 0166753 EA
Loop 0.218" 1.80 lb 0.27 lb/in 110166753 PKG
Loop 0.250" 2.74 lb 0.91 lb/in 0166765 EA
Loop 0.281" 1.79 lb 0.30 lb/in 0166775 EA
Loop 0.281" 2.46 lb 0.57 lb/in 0166776 EA
Loop 0.312" 2.95 lb 0.43 lb/in 110166789 PKG
Loop 0.343" 1.48 lb 0.12 lb/in 0166796 EA
Loop 0.437" 1.61 lb 0.10 lb/in 0166809 CS
Wire Material: Steel
Style: Undefined
Finish: OIL
Finish: OIL
End Style Outer Diameter Load Spring Constant SKU Pkg Qty Price
End Style Outer Diameter Load Spring Constant SKU Pkg Qty Price
Full Loop 0.375" 99840428 PKG
Full Loop 0.500" 99852900 PKG
Full Loop 0.500" 99852995 PKG
Full Loop 0.500" 99852992 PKG
Full Loop 0.500" 99852980 PKG
Full Loop 0.500" 99852974 PKG
Full Loop 0.500" 99852915 PKG
Full Loop 0.500" 99852912 PKG
Full Loop 0.500" 99852906 PKG
Full Loop 0.500" 99840422 PKG
Full Loop 0.500" 99852897 PKG
Full Loop 0.500" 99852864 PKG
Full Loop 0.500" 99852855 PKG
Full Loop 0.500" 99852821 PKG
Full Loop 0.500" 99852815 PKG
Full Loop 0.500" 99852787 PKG
Full Loop 0.500" 99852769 PKG
Full Loop 0.500" 99852876 PKG
Full Loop 0.625" 99840421 PKG
Full Loop 0.625" 99840472 EA
Full Loop 0.750" 99853272 PKG
Full Loop 0.750" 99853308 PKG
Full Loop 0.750" 99853241 PKG
Full Loop 0.750" 99853229 PKG
Full Loop 0.750" 99853154 PKG
Full Loop 1.000" 99853578 PKG
Full Loop 1.000" 99853581 PKG
Full Loop 1.000" 99853602 PKG
Full Loop 1.000" 99853666 PKG
Full Loop 1.000" 99853711 PKG
Full Loop 1.000" 99853741 PKG
Full Loop 0.546" 99840425 PKG
Full Loop 0.234" 99840444 PKG
Full Loop 0.063" 99850931 PKG
Full Loop 0.094" 99851045 PKG
Full Loop 0.120" 99851165 PKG
Full Loop 0.120" 99851234 PKG
Full Loop 0.120" 99851207 PKG
Full Loop 0.120" 99851183 PKG
Full Loop 0.120" 99851159 PKG
Full Loop 0.120" 99851126 PKG
Full Loop 0.120" 99851117 PKG
Full Loop 0.120" 99851102 PKG
Full Loop 0.120" 99851156 PKG
Full Loop 0.180" 99851370 PKG
Full Loop 0.180" 99851517 PKG
Full Loop 0.180" 99851511 PKG
Full Loop 0.180" 99851478 PKG
Full Loop 0.180" 99851460 PKG
Full Loop 0.180" 99851436 PKG
Full Loop 0.180" 99851415 PKG
Full Loop 0.180" 99851391 PKG
Full Loop 0.180" 99851379 PKG
Full Loop 0.180" 99851466 PKG
Full Loop 0.180" 99851364 PKG
Full Loop 0.180" 99851292 PKG
Full Loop 0.180" 99851361 PKG
Full Loop 0.180" 99851280 PKG
Full Loop 0.180" 99851283 PKG
Full Loop 0.180" 99851289 PKG
Full Loop 0.180" 99851298 PKG
Full Loop 0.180" 99851328 PKG
Full Loop 0.180" 99851334 PKG
Full Loop 0.180" 99851301 PKG
Full Loop 0.240" 99851834 PKG
Full Loop 0.240" 99851735 PKG
Full Loop 0.240" 99851741 PKG
Full Loop 0.240" 99851777 PKG
Full Loop 0.240" 99851780 PKG
Full Loop 0.240" 99851783 PKG
Full Loop 0.240" 99851792 PKG
Full Loop 0.240" 99851828 PKG
Full Loop 0.240" 99851852 PKG
Full Loop 0.240" 99851840 PKG
Full Loop 0.240" 99851858 PKG
Full Loop 0.240" 99851885 PKG
Full Loop 0.240" 99851906 PKG
Full Loop 0.240" 99851933 PKG
Full Loop 0.240" 99851936 PKG
Full Loop 0.240" 99851939 PKG
Full Loop 0.240" 99851729 PKG
Full Loop 0.240" 99851888 PKG
Full Loop 0.240" 99851693 PKG
Full Loop 0.240" 99851726 PKG
Full Loop 0.240" 99851636 PKG
Full Loop 0.240" 99851720 PKG
Full Loop 0.240" 99851597 PKG
Full Loop 0.240" 99851603 PKG
Full Loop 0.240" 99851606 PKG
Full Loop 0.240" 99851615 PKG
Full Loop 0.240" 99851624 PKG
Full Loop 0.240" 99851630 PKG
Full Loop 0.240" 99851633 PKG
Full Loop 0.240" 99851639 PKG
Full Loop 0.240" 99851645 PKG
Full Loop 0.240" 99851648 PKG
Full Loop 0.240" 99851651 PKG
Full Loop 0.240" 99851672 PKG
Full Loop 0.240" 99851678 PKG
Full Loop 0.240" 99851681 PKG
Full Loop 0.240" 99851687 PKG
Full Loop 0.240" 99851690 PKG
Full Loop 0.300" 99852091 PKG
Full Loop 0.300" 99852115 PKG
Full Loop 0.300" 99851989 PKG
Full Loop 0.300" 99852040 PKG
Full Loop 0.300" 99852031 PKG
Full Loop 0.360" 99852541 PKG
Full Loop 0.360" 99852538 PKG
Full Loop 0.360" 99852511 PKG
Full Loop 0.360" 99852487 PKG
Full Loop 0.360" 99852484 PKG
Full Loop 0.360" 99852478 PKG
Full Loop 0.360" 99852463 PKG
Full Loop 0.360" 99852430 PKG
Full Loop 0.360" 99852427 PKG
Full Loop 0.360" 99852424 PKG
Full Loop 0.360" 99852415 PKG
Full Loop 0.360" 99852406 PKG
Full Loop 0.360" 99852388 PKG
Full Loop 0.360" 99852382 PKG
Full Loop 0.360" 99852379 PKG
Full Loop 0.360" 99852364 PKG
Full Loop 0.360" 99852331 PKG
Full Loop 0.360" 99852133 PKG
Full Loop 0.360" 99852154 PKG
Full Loop 0.360" 99852163 PKG
Full Loop 0.360" 99852187 PKG
Full Loop 0.360" 99852190 PKG
Full Loop 0.360" 99852232 PKG
Full Loop 0.360" 99852244 PKG
Full Loop 0.360" 99852250 PKG
Full Loop 0.360" 99852283 PKG
Full Loop 0.360" 99852292 PKG
Full Loop 0.360" 99852313 PKG
Full Loop 0.360" 99852316 PKG
Full Loop 0.360" 99852325 PKG
Full Loop 0.360" 99852328 PKG
Full Loop 0.420" 99852609 PKG
Full Loop 0.420" 99852654 PKG
Full Loop 0.420" 99852666 PKG
Full Loop 0.650" 99853097 PKG
Full Loop 0.650" 99853058 PKG
Full Loop 1.250" 99853910 PKG
Full Loop 5.50mm 99856272 PKG
Full Loop 3.50mm 99856277 PKG
Full Loop 6.00mm 99856281 PKG
Full Loop 4.50mm 99856289 PKG
Full Loop 4.00mm 99856310 PKG
Full Loop 8.50mm 99856364 PKG
Full Loop 14.00mm 99856417 PKG
Full Loop 24.00mm 99856432 PKG
Machine Loop 0.750" 99840440 PKG
Machine Loop 0.875" 99840436 PKG
Machine Loop 1.000" 99840438 PKG
Machine Loop 1.062" 99840437 EA
Machine Loop 0.484" 99840430 PKG
Machine Loop 0.718" 99840432 PKG
Machine Loop 0.344" 99840442 PKG
Open - No Hook 0.125" 99851273 PKG
Open - No Hook 0.187" 99851596 PKG
Open - No Hook 0.250" 99851988 PKG
0.750" 99840473 PKG