Precision Extension Springs Zinc Plated, Hook Ends

Stress relieved through heat treating, load test verified, meets ASTM B633.

extension springs
Steel Music Wire Precision Extension Springs
Part # Wire Diameter Spring OD Overall Length Load-Lbs Deflection @ Load Spring Rate (lbs/in) Pkg. Qty. Pkg. Price
Spring-424 .016" .125" 1.00" 1.83 1 1.63 6 $21.18
Spring-469 .020" .125" 2.00" 2.89 1 2.39 6 $22.24
Spring-535 .022" .750" .500" 21.6 8 3.23 12 $31.12
Spring-427 .022" .187" 1.00" 2.45 1 2.4 12 $25.96
Spring-472 .022" .187" 2.00" 2.75 2.5 1.02 6 $22.24
Spring-430 .026" .250" 1.00" 2.82 1 2.52 6 $20.08
Spring-445 .026" .250" 1.375" 2.69 1.63 1.6 6 $22.24
Spring-475 .026" .250" 2.00" 3.31 3 0.98 6 $21.18
Spring-451 .031" .250" 1.50" 7.77 2 3.57 6 $20.08
Spring-489 .031" .250" 2.50" 5 2.5 6.88 6 $21.10
Spring-454 .031" .375" 1.50" 3.33 2.5 1.19 6 $22.24
Spring-433 .037" .250" 1.00" 8.89 0.5 17.7 6 $20.08
Spring-460 .037" .250" 1.75" 11.07 1.25 8.15 6 $22.24
Spring-502 .037" .250" 3.00" 9.06 2 4.16 6 $22.24
Spring-457 .037" .375" 1.50" 6.59 2 3.14 6 $20.08
Spring-436 .041" .375" 1.00" 6.83 0.5 12.7 6 $21.18
Spring-463 .041" .375" 1.75" 7.71 1.75 4.27 6 $22.24
Spring-492 .041" .375" 2.50" 9.85 3.5 2.46 6 $21.18
Spring-466 .041" .500" 1.75" 6.8 3 2.03 6 $20.08
Spring-439 .045" .375" 1.00" 9.35 0.5 18.29 6 $20.08
Spring-503 .045" .375" 3.00" 10.11 3 3.16 6 $20.08
Spring-504 .045" .375" 3.00" 10.11 3 3.16 6 $24.08
Spring-495 .045" .500" 2.50" 9.67 3 1.79 6 $19.06
Spring-483 .055" .375" 2.25" 20.15 1.25 13.33 6 $20.08
Spring-518 .055" .375" 4.50" 20.53 3 5.84 6 $22.24
Spring-486 .055" .500" 2.25" 13.56 2.25 5.53 6 $18.24
Spring-522 .055" .500" 4.50" 13.7 5.25 2.36 6 $28.80
Spring-448 .063" .500" 1.375" 16.97 0.63 24.67 12 $28.84
Spring-499 .063" .500" 2.50" 23.33 2 10.63 12 $28.84
Spring-528 .063" .500" 5.00" 19.6 4 4.37 6 $28.80
Spring-509 .063" .625" 3.00" 16.19 3.5 4.28 12 $22.96
Spring-478 .069" .625" 2.00" 22.66 1.5 13.56 18 $22.92
Spring-512 .069" .625" 3.00" 21.43 3 6.63 12 $22.96
Spring-525 .069" .625" 4.50" 19.2 4.5 4.36 6 $17.16
Spring-530 .069" .625" 5.00" 19.2 4.5 4.36 6 $17.16
Spring-494 .075" .750" 2.00" 24.38 1.5 15.22 12 $28.00
Spring-515 .075" .750" 3.00" 19.96 3 6.36 12 $27.36
Spring-533 .075" .750" 5.00" 21.6 8 3.23 6 $19.06