Information

Manufacturing Materials
Type 302 & 304 Stainless Steel(also known as 18-8): Used in most turnbuckle jaw studs and some toggle stampings. This material offers good corrosion resistance and high strength. Type 316/316L Stainless Steel: Used on all swage terminals and most toggle stampings, turnbuckle bodies and other components. This material offers better corrosion resistance with a slight trade-off in strength. Naval Bronze: This material is used on all toggle nuts to facilitate the toggling action so that no "cold welding" of the two surfaces occurs. Aluminum Silicon Bronze: Used in forged turnbuckle bodies and some machined turnbuckle jaw studs. Same physical properties as 300 series stainless steel. Excellent corrosion resistance. 6061 T-6 Aluminum: High strength alloy commonly used in the aerospace/marine industry, anodized for excellent corrosion resistance.

Glossary of Terms:
Turnbuckle: A device for tensioning cable or rod. Usually refers to the entire unit including the body, both right and left ends, nuts and pins. Turnbuckle Body: Center portion only. Stud: Threaded rod that connects between the body and toggle end. Terminal: Fitting for termination of cable, can be machine swage or hand crimp. Clevis pin: Removable pin for securing a toggle jaw or fork to an end post or rail. Toggle Jaw: Articulating jaw terminal for attachment to cable. Toggled 180 degrees. Turnbuckle Jaw: Threaded on one end for attachment to turnbuckle body with a clevis pin on the other end. Link Plate: Flat plate with two or more holes used for extending the length of an assembly. Ring pin: Circular pin used in place of a cotter pin for securing a clevis pin.

Before & After Swage Dimensions
(for swage fittings):
TERMINAL WIRE SIZE 1/8" 5/32" 3/16" 7/32" 1/4" 1/4" 5/16" 3/8"
(choose a drill bit size to allow clearance hole for after swage dimension)

THREAD DIAMETER 10-32, 1/4" 1/4", 5/16" 1/4", 5/16", 3/8" 3/8" 5/16" 3/8" 1/2", 5/8" 5/8"

BEFORE SWAGE DIMENSION .250 .297 .359 .427 .427 .494 .635 .703

AFTER SWAGE DIMENSION .219 .250 .313 .375 .375 438 .563 .625

National Marine Manufacturers Association

National Ornamental & Miscellaneous Metals Association

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Johnson Marine * Tel 860.873.8697 * Fax 860.873.8589 * www.csjohnson.com