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Inner Diameter:

Outer Diameter:

Wire Diameter:

Spring Length:

Wind Specifications:

Leg Angle:

Equal Leg Length?

Leg End Style:

Material:

Finish:

Help with Torsion Springs specifications:

Size
   Inner Diameter:       Inside diameter of spring coil. This is typically specified when the spring is required to slip over a mandrel with sufficient clearance to operate freely. 
   Search Logic:      User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
   Outer Diameter:       Outside diameter of spring coil. This is typically specified when the spring is required to fit into a circular hole with sufficient exterior clearance to operate freely, or if there are outer housing clearance issues. 
   Search Logic:      User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
   Wire Diameter:       The diameter of the actual spring wire. 
   Search Logic:      User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
   Spring Length:       Length of the spring coil. 
   Search Logic:      User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
   Wind Specifications       
   Your choices are...         
   Right Hand Wind       Wound in a right-hand configuration. 
   Left Hand Wind       Wound in a left-hand configuration. 
   Double Torsion Wind       One right-hand and one left-hand wind on the same spring, usually with an unwound section between the winds. The two legs emerge from the spring on the same side. 
   Search Logic:      All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
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Leg Specifications
   Leg Angle:      Straight, parallel on the same side are considered 0°. Increasing angle is in the unwinding direction.
   Your choices are...         
          Corresponds to N+1/2 coil turns. 
   45°       Corresponds to N+3/8 coil turns. 
   90°       Corresponds to N+1/4coil turns. 
   135°       Corresponds to N+1/8 coil turns. 
   180°       Corresponds to N coil turns. 
   225°       Corresponds to N+7/8 coil turns. 
   270°       Corresponds to N+3/4 coil turns. 
   315°       Corresponds to N+5/8 coil turns. 
   Other Angle       Any unlisted angle. 
   Search Logic:      All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
   Equal Leg Length?       Both legs have equal length. 
   Search Logic:      "Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.
   Leg End Style       
   Your choices are...         
   Straight Torsion       Ends emerge straight from spring helix. 
   Straight Offset       Ends bend and run out from spring parallel to spring axis. 
   Hinged       Ends curl in toward spring center. 
   Short Hook Ends       Ends curl out slightly. 
   Hook Ends       Ends have hooks on ends. 
   Other       Any special or unlisted end style. 
   Search Logic:      All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
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Spring Construction
   Material       
   Your choices are...         
   Hard Drawn Steel       Average, general duty springs. 
   Music Wire       Typical application is small spring with rapid actuation. 
   Spring Steel       General term for music wire, hard drawn wire, or oil-tempered wire. 
   Stainless Steel       Corrosion resistant, less stiff than carbon steel. 
   Other Metal       Any unlisted metal. 
   Non-metallic       Any plastic or fiber spring material. 
   Search Logic:      All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
   Finish       
   Your choices are...         
   None       Bare material, no coating or other finish. 
   Black Oxide       Penetrative chemical process for durable black finish. 
   Gold Irridite       Thin chromate coating for corrosion resistance. 
   Passivate       Acid treatment for stainless steel; increases corrosion resistance. 
   Zinc       Somewhat shiny finish; galvanized. 
   Other       Any specialized or unlisted finish. 
   Search Logic:      All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
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