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Black Heavy Duty Spring Extension Hook for Hammock Chair and Swing Hanging
US$2.38-2.52
100 Pieces
Sample price:US$3.00/piece.Request sample
Product profile
Customization
AvailableFunction
Pressed, Phonation, Buffer, Drive, Restoration, MeasurementMaterial
Stainless SteelModel NO.
BSP-S148Usage
Industrial, Swing, Hammock, YogaLoad Type
ExtensionProduction Process
Cold RollShape
CoilLogo
LaseringOEM
SupportSurface
PolishWeight
375gColor
BlackTransport Package
CartonsSpecification
148mm*30mmTrademark
NUKOrigin
Shandong, ChinaHS Code
830210000Production Capacity
5000 Sets/MonthsKey features
This black-coated tension spring absorbs shock and reduces stress on suspension points, preventing premature wear or breakage.
Ideal for outdoor hammock chairs, porch swings, or fitness equipment where smooth, quiet motion and long-term durability are essential for user comfort and safety.
The open-loop ends allow easy attachment to S-hooks, carabiners, or mounting brackets without tools - solving the frustration of complex rigging setups.
Perfect for DIY backyard projects or commercial play areas where fast assembly and reconfiguration save time and labor costs.
Engineered with precision-wound coils and heat-treated wire, it maintains elasticity after thousands of cycles - outlasting standard springs by up to 40%.
Adds reliable performance to high-use environments like gyms, parks, or rental properties where consistent rebound and safety matter most.
Company profile
Business Type: Manufacturer/FactoryExport Year: 2021-08-03Nearest Port: Qingdao, TianjinAverage Response Time: ≤1.65hTerms of Payment: LC, T/TInternational Commercial Terms(Incoterms): FOB, EXW, CFR, CIF, DDP
About Our Factory & Business Background
AddressNo.3 Dizhou Road, Wudi County, Binzhou, Shandong, China
Our Production Capability & Technical Expertise
Main ProductsRigging Hardware, Shackles, Wire Rope Clips, Thimbles, Snap Hook, Carabiners, Swivels, Hooks, Marine Hardware, Swivel Snap Hook
Our Industry Experience & Global Business Record
Main MarketsNorth America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, Eastern Asia, Western Europe
Product Q&A
Q:What is the maximum load capacity of this black extension spring?
A:
Capacity depends on wire diameter and coil count - common models support 50-150kg. Always match spring specs to your hammock chair or swing's weight rating to avoid overstretching or failure during use.
Q:Can this spring be used outdoors without rusting?
A:
Yes, if coated with black oxide or powder-coated steel, it resists moisture and UV exposure. Ideal for porch swings, garden hammocks, or patio furniture where weather resistance ensures long-term performance without maintenance.
Q:How do I install this spring without tools?
A:
The open hook ends allow quick attachment to S-hooks, carabiners, or eye bolts - no wrenches or pliers needed. Perfect for DIY setups or rental properties where fast, tool-free assembly saves time and reduces installation errors.
Q:Is this spring suitable for commercial gym equipment or just home use?
A:
Absolutely. Engineered for high-cycle durability, it's used in fitness studios, playgrounds, and rental gear where repeated stress demands reliable shock absorption. Adds safety and comfort to heavy-use environments without frequent replacement.
Send Inquiry
*To:
Binzhou Nuk Metals Co., Ltd.
Binzhou Nuk Metals Co., Ltd.*Content:
Supplier replies will be sent to your registered email
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