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Small zinc-plated steel spring latch kit with bolt, nut and spring hardware

Campbell

Campbell 3991001 Replacement Latch Kit for Hook Sizes 11-31

SKU CH-1S0H-FC403

Spring-latch replacement kit fits hook sizes 11 through 31 and includes bolt, latch, nut and spring

  • TypeHook & Loop
  • Fits hook sizes 11 through 31 for versatile replacement
  • Zinc-plated steel resists corrosion for longer service life
  • Spring latch design ensures secure, automatic closure
  • Includes bolt, nut, spring and latch eye for complete repair
  • Compatible with multiple Campbell hook models for easy matching

Replacement Latch Kit for Hook Sizes 11-31

This kit supplies a spring latch assembly designed for Campbell hook sizes 11 through 31. It includes the bolt, latch, nut and spring needed to restore the original hook function. The zinc-plated steel construction resists corrosion in typical indoor and outdoor environments. Installers working with compatible models will find the hardware matches the original specifications.

Sustained load behaviour of the spring latch

The spring latch mechanism maintains consistent closure force over repeated cycles without relying on hydraulic damping. Under continuous tension the steel spring returns the latch to the closed position each time. Zinc plating protects the moving parts from surface oxidation that could increase friction during extended use. The kit restores the hook's ability to hold rated loads through many opening and closing events.

Practical limits of the hook compatibility range

The kit fits only the manufacturer model numbers listed in the specifications, covering hook sizes 11 to 31. Hooks outside this size range or from other manufacturers will not accept the latch eye diameter or width between eyes. Users must verify their hook model number before ordering to avoid mismatched hardware. No adaptation is possible for incompatible hook designs.

Highlights

  • Fits hook sizes 11 through 31 for versatile replacement
  • Zinc-plated steel resists corrosion for longer service life
  • Spring latch design ensures secure, automatic closure
  • Includes bolt, nut, spring and latch eye for complete repair
  • Compatible with multiple Campbell hook models for easy matching

Specifications

BrandCAMPBELL
TypeHook & Loop

Questions about this item

Will the spring latch on the Campbell 3991001 kit loosen or rattle after being under load all day?

The zinc-plated steel spring latch is designed to maintain tension under continuous load, and the included bolt and nut secure it firmly to prevent loosening during extended use.

Do I need a specific Campbell hook model already installed for the 3991001 replacement latch kit to fit?

Yes, this kit fits Campbell hook sizes 11 through 31 and is compatible with manufacturer model numbers 5645015, 5645095, 5645215, 5645295, 5745015, 5745095, 5745215 and 5745295.

Can I use the 3991001 latch kit on an older Campbell hook that has a 1/4 inch latch eye and 1 inch width between eyes?

Yes, the kit matches a 1/4 inch latch eye diameter and 1 inch width between eyes, so it will work on older hooks with those exact dimensions.

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