Sizing Guide

Part No	Thread Size	Clevis pin Ø (mm)	L_MIN (mm)	L_MAX (mm)	H1 (mm)	W (mm)	H2 (mm)	Breaking Load (kg)
174-321-13	1/4"	6.50	150	220	12.00	7.50	15.00	1550
174-322-13	5/16"	8.00	184	264	15.00	9.00	19.00	2450
174-323-13	3/8"	9.50	220	321	18.00	10.50	22.00	3450
174-324-13	7/16"	11.00	252	373	21.00	12.50	23.50	4750
174-325-13	1/2"	13.00	294	439	25.00	14.50	30.00	6200
174-326-13	5/8"	15.80	352	522	32.00	18.00	39.50	9500
174-327-13	3/4"	15.80	411	612	32.00	22.00	40.50	12500
174-327-14	3/4"	19.00	411	612	32.00	22.00	40.50	12500
174-328-13	7/8"	19.00	495	676	45.00	23.00	55.00	18000
174-328-14	7/8"	22.00	495	676	45.00	23.00	55.00	18000

Fork/Toggle Selden Bronze Rigging Screws: A Comprehensive Guide

Introduction

Fork/Toggle Selden Bronze Rigging Screws are high-performance tensioning components used in marine and architectural rigging. Their chrome-plated aluminum bronze body and marine-grade stainless steel terminals provide exceptional strength and corrosion resistance. The fork/toggle configuration offers enhanced flexibility, making them ideal for dynamic rigging applications.

Material Composition and Benefits

These rigging screws are designed with:

Chrome-plated aluminum bronze for the body, ensuring high durability and resistance to corrosion.
Marine-grade stainless steel terminals, reducing the risk of thread seizure under heavy loads.

This combination results in a long-lasting, high-performance rigging screw suitable for demanding environments.

Design and Functionality

The Fork/Toggle configuration consists of:

A fixed machined fork with a pin at one end.
A toggle at the other end, allowing for greater articulation and movement.

This design is particularly useful in applications where rigging angles change dynamically, such as sailboat rigging and architectural tensioning systems.

Applications

Fork/Toggle Selden Bronze Rigging Screws are commonly used in:

Marine rigging, particularly for sailboats and yachts.
Architectural tensioning systems, where flexibility is required.
Industrial applications, where high-strength tensioning is necessary.

Available Sizes and Specifications

These rigging screws come in various sizes to accommodate different wire diameters and thread sizes. Some common specifications include:

Thread sizes ranging from 1/4" to 7/8".
Pin diameters from 6.50mm to 22.00mm.
Breaking loads varying from 1,550kg to 18,000kg, depending on size.

Maintenance and Longevity

To ensure optimal performance:

Regular lubrication with rigging screw oil prevents thread seizure.
Periodic inspections help detect wear and corrosion.
Proper installation ensures maximum load-bearing capacity.

Conclusion

Fork/Toggle Selden Bronze Rigging Screws are a premium choice for marine and architectural rigging, offering strength, durability, and flexibility. Their innovative design minimizes thread seizure while allowing for dynamic movement, ensuring long-lasting performance in demanding environments.

Part No. 174-321-13

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Fork/Toggle Selden Bronze Rigging Screw

Bronze, like stainless steel, is very strong and highly resistant to corrosion. By making the body of the rigging screw in chrome plated aluminium bronze and the terminals in high grade marine stainless steel the risk of the thread seizing up under heavy loads is reduced. A design feature which gives you a product that performs better and lasts even longer.

This rigging screw has a fixed machined fork with at one end, and a toggle at the other end. Check the pin sizes are correct for your requirements.

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Fork/Toggle Selden Bronze Rigging Screw