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Home > Products > All Collections > Rigging Hardware & Fittings > Turnbuckles & Rigging Screws > Rigging Screw

Rigging Screw

Name: Rigging Screw
Brand: H-Lift Industries Co Ltd
SKU: 702005
Availability: InStock
Rating: 5 (1 reviews)

No.702005

The H-Lift Rigging Screw (Closed Body Turnbuckle) is a specialized tensioning device featuring a fully enclosed tubular body that protects internal threads from environmental contaminants such as salt spray, dirt, and moisture. This robust design prevents thread corrosion and damage, making it exceptionally reliable for long-term outdoor, marine, and architectural applications where durability and a streamlined aesthetic are paramount. Constructed for demanding use, it provides secure tension adjustment for cables, wire ropes, and rod systems while minimizing maintenance requirements.

Closed-body tubular design fully encases and protects threads
Enhanced corrosion resistance ideal for marine and coastal environments
Sleek, snag-free profile suitable for architectural rigging
Material options typically include high-grade steel or stainless steel
Includes inspection ports to verify safe thread engagement

Technical Data
Differene between Rigging Screws and Turnbuckles

H-Lift Closed Body Rigging Screws (also known as Tubular Turnbuckles) feature a seamless steel pipe body that fully encases the threaded spindles. This design provides superior protection against dirt, grit, and corrosion, making them the preferred choice for long-term outdoor installations, marine rigging, and architectural projects where aesthetics and durability are paramount.

🛡️ Thread Protection

The tubular closed body shields internal threads from environmental contaminants, ensuring smooth adjustment even after long periods of exposure.

🌊 Corrosion Resistance

Manufactured from Mild Steel with a Hot Dip Galvanized finish, offering excellent rust protection in harsh marine and industrial environments.

✨ Streamlined Aesthetics

The smooth cylindrical profile prevents snagging and offers a clean, modern look, ideal for architectural wire balustrades and structural bracing.

⚙️ Secure Locking

Can be fitted with locking nuts (check-nuts) to securely lock the adjusted length in place, preventing loosening caused by vibration.

Q: Why use a closed body rigging screw?
A: Ideally suited for permanent outdoor use. The closed body prevents dirt, salt, and debris from seizing the threads. It also provides a cleaner, more finished appearance for architectural applications.

Q: What is the difference between a Rigging Screw and a Turnbuckle?
A: A Rigging Screw has a closed (tubular) body that protects threads and holds lubricant. A Turnbuckle typically has an open frame body, which allows for visual inspection of thread engagement.

Comparison: Rigging Screw vs. Turnbuckle

Feature	Rigging Screw (Closed Body)	Turnbuckle (Open Body)
Protection	Better. Protects threads from dirt & grit.	Less. Threads exposed to environment.
Maintenance	Holds lubricant well; ideal for permanent use.	Easier to visually inspect thread wear.
Adjustment	Rotated via central cross-hole with a bar.	Tightened by turning frame with wrench.
Aesthetics	Sleek, preferred for architecture.	Industrial appearance.

Technical Specifications

Item No.	Size	WLL (ton)	Main Dimensions (mm)								Weight	Product Code
Item No.	Size	WLL (ton)	A	L	B	C	D	E	φ	H	kg	Product Code
TBRS06	M6	0.2	102	6	8.5	17.5	50	6	12	180-250	0.12	702005006
TBRS08	M8	0.3	127	6	12	18.5	55	6	16	205-275	0.21	702005008
TBRS10	M10	0.5	152	8	14	25	65	8	20	240-340	0.46	702005010
TBRS12	M12	0.7	229	10	16	27	100	10	25	320-480	0.90	702005012
TBRS16	M16	1.2	229	12	18	35	105	12	28	360-500	1.50	702005016
TBRS20	M20	1.5	229	16	23	38	115	12	32	375-515	2.00	702005020
TBRS22	M22	2.2	305	20	27	41	145	13	34	465-665	2.50	702005022
TBRS24	M24	5.0	356	22	29	42	165	13	42	530-770	4.30	702005024
TBRS33	M33	7.0	381	27	38	58	180	14	49	590-850	8.00	702005033
TBRS39	M39	10.0	406	33	44	63	210	16	60	660-925	14.10	702005039
TBRS50	M50	17.0	407	42	55	100	230	18	76	740-1010	30.00	702005050

Rigging screws and turnbuckles are essential components used to adjust tension and secure loads. While they serve similar functions, their distinct designs make them suitable for specific applications.

Rigging Screws

*Rigging screws feature a pipe-like closed body encasing the threads.

Definition: Also known as rigging tensioners, these devices adjust tension in cables, wires, or rods. They typically feature a closed body (tubular) design.
Functionality: Rotating the body causes the attached fittings (different handed threads) to move in or out, providing precise tensioning.
Best Use: Critical for maintaining correct tension in shrouds, stays, and guard wires where protection of the threads is beneficial.

Turnbuckles

*Turnbuckles feature an open frame allowing view of the threads.

Definition: Often called bottlescrews, these mechanical devices consist of an open frame with two threaded ends connected to eye bolts, hooks, or jaws.
Design: The open body allows for easy visual inspection, lubrication, and maintenance. Available in stainless steel, bronze, and galvanized steel.
Functionality: Features one left-hand and one right-hand thread. Rotating the central frame adjusts both ends simultaneously.
Applications: Widely used in marine rigging, construction, and general tensioning.

Key Differences Summary

Body Design Rigging screws generally have a closed (tubular) body, protecting the threads. Turnbuckles have an open body, allowing for inspection.
Thread Types Rigging screws typically use different handed threads on each end for fine adjustment. Turnbuckles use standard LH/RH threads for rapid adjustment.
Usage Context Turnbuckles are preferred where frequent adjustments and inspection are needed. Rigging screws are often preferred for permanent installations where aesthetics or thread protection is prioritized.