Turnbuckle open | hook/hook | A4 | M8246
Turnbuckle, wire tensioner with jaw/jaw adjustable in stainless steel A4 is intended for use in corrosive and marine environments. The product is used where stepless adjustment of length and controlled tensioning of wire, cable, or stays is required. The jaw/jaw design provides a closed and secure attachment at both ends, which reduces the risk of accidental disconnection. The construction allows for precise fine-tuning of tension and length without dismantling the connection. It is suitable for installations where high corrosion resistance, reliable function, and long service life are essential.
FIELD OF APPLICATION
The product is used in marine rigging, wire systems, railing installations, building structures, and outdoor environments. It is intended for applications where adjustable wire tension, re-tensioning, and precise length setting are required, for example in wire railings, guy wires, and load-bearing wire constructions. The jaw/jaw design is used where a permanent and secured attachment is desired at both ends, for example together with shackles or bolted connections. The material provides resistance to saltwater, moisture, and chemically aggressive environments.
TECHNICAL SPECIFICATIONS
Product type: Fitting
Product family: Turnbuckle
Material class: A4
Strength class: Not specified
Standard: Not specified
Thread dimension: M5–M20
Design: Jaw/jaw
Surface finish: Bright
Environment: Marine
Delivery unit: Piece
FREQUENTLY ASKED QUESTIONS (FAQ)
How does a jaw/jaw turnbuckle work?
The center part of the turnbuckle (the body) has one right-hand threaded side and one left-hand threaded side. When you turn the body, both jaws are pulled together or pushed apart simultaneously. This allows you to steplessly and precisely adjust the tension in wire and chain connections without the wire itself rotating.
Why choose two jaws (jaw/jaw) instead of a hook?
A closed jaw at both ends provides maximum safety in permanent and loaded installations. Unlike a hook, there is no risk of the line, shackle, or attachment accidentally unhooking if the tension in the wire is temporarily lost, or during strong movements and wind loads.
What does it mean that the turnbuckle is made of acid-proof A4 steel?
A4 steel (AISI 316 / 1.4401) contains molybdenum, which provides superior protection against corrosion, saltwater, and chemical exposure. The turnbuckle is therefore fully adapted for marine environments, boat rigging, railings, shade sails, and coastal outdoor structures where ordinary steel materials would quickly rust.