Galvanised Turnbuckles: US Fed Spec FF-T-791 B - Jaw & Jaw

Code: GTJJ
  • £6.71 (ex. VAT)
  • (Delivery from £8.50 (ex. VAT) )
Item in Stock | Order before 1pm for same day despatch
  • A simple device for creating tension/load on wire assemblies.
  • To use - hold both of the end fittings stationary whilst turning the body to lengthen or shorten the unit.
  • Drop forged, high tensile steel, SAE 1035 or SAE 1045.
  • Meets the performance requirements of ASTM F1145-05 Type 1 Grade 1 & US Fed Spec FF T 791 b.
  • Hot dipped galvanised finish.
  • Proof load tested to 2 times the W.L.L.
  • Minimum breaking load is 5 times the W.L.L.
  • Tested for lifting - supplied with certification
  • These come with locking nuts for added safety.
  • Please note "choose length" refers to the length of adjustment
  • Jaws come with either nut and bolt or bolt with split pin
  • NB These have a UNC thread
Product CodeA (inches)A (mm)Adjustment Length (inches)B (mm)N (mm)O (mm)PACK QTYWLL (Tonnes)Weight (kg)


Turnbuckles must be used for straight or in-line pulling only. - Special attention should be paid to prevent overloading. - While tensioning, the forces on the turnbuckle must not be such that any deformation occurs. In case of deformation, the tension should be decreased immediately and deformed parts should be replaced. Should extreme circumstances or shock loading be applicable this must be taken into account when selecting the correct products to be used for the application. - Closed body rigging screws and commercial open body rigging screws are used for tensioning wires and ropes for minor loads (i.e. rope railings). The WLL values are only indicative, and these products are not suitable for bearing constructions. - For the rigging of wires, ropes, rods etc., turnbuckles and turnbuckles according to DIN 1480 with forged eyes or with welding ends are to be used. - The Working Load Limit (WLL) should be applied in a straight pull only and overloading is not permitted. Nor should side loads be applied, as the products have not been designed for this purpose. - It is required that the products are regularly inspected and that the inspection should take place in accordance with the safety standards given in the country of use. This is required because the products in use may be affected by wear, misuse, overloading etc. with a consequence of deformation and alteration of the steel structure.


Turnbuckles should be inspected before use to insure that: ● the threads of the body and the end fittings are of the same type; ● the threads of the body and the end fittings are undamaged; ● the body and end fittings are not distorted or unduly worn; ● the body and end fittings are free from nicks, gouges and cracks. Furthermore, it must be ensured that the end fittings are correctly screwed into the body. Always use the locking nuts supplied to prevent the turnbuckles from unscrewing. Never replace an end fitting, other than the one designed for the purpose, as it may not be suitable for the loads imposed.


Our turnbuckles are suitable for lifting applications. These items have a proof load equal to 2 x WLL and MBL equal to 5 x WLL. Of course the ‘instructions for use’ above should be respected at all times. It is not permitted to adjust the length of the turnbuckle as it’s under full load. Tensioning below the WLL is permitted. It is advisable first to adjust roughly the length of the turnbuckle and then load the turnbuckles to a certain tension. The tension may not exceed the full capacity (WLL). It is not permitted to lift a load by tensioning (rotating the body) the turnbuckle, as shown in the picture to the right

Delivery Costs

 Please Note: Delivery prices quoted are excluding VAT.

England, Wales, Scottish Lowlands :

Order Weight (Kg)Order value2-3 Day DeliveryNext Day Delivery
0-19.99Up to £500£8.50£12.50
20-29.99Up to £500£12.00£15.00
30-49.00Up to £500£20.00£25.00
50-74.99Up to £500£27.00£35.00
75-99.99Up to £500£37.00£45.00
100+Up to £500£40.00£55.00
ANYOver £500FREE£15.00
Other UK areas (2-7 day delivery): 
Order Weight (Kg)Highlands & IslandsIsle of Man & Scilly Isles 




Deliveries are made from Monday to Friday excluding Bank Holidays.

Next Day Carriage : Express Delivery is available in mainland England, Wales & Scottish Lowlands. Please use the drop down menu under Shipping Options and select Express Delivery. The following timing cut-offs apply to Express Delivery orders :

  • Orders placed before 1pm : ALL orders placed before 1pm will be despatched on the day of the order on a next working day delivery service.
  • Orders placed between 1pm and 3pm : we endeavour to despatch orders placed between 1pm and 3pm on the same day as the order but this is not always possible and is dependant on which products are being ordered. If timing is critical, please call 01460 220906 to find out if it will be possible to same day despatch a particular product after 1pm.
  • Orders placed after 3pm : ALL orders placed after 3pm will be despatched the following day an a next working day delivery service.

2-3 Day Mainland Delivery : Orders placed before 12pm should arrive within 2-3 working days from the date of the order. Orders placed after 12pm will be should arrive within 2-3 working days from the day after the order. 

Non-standard areas : Please allow 7 working days from clearance of payment for delivery. Typically this is much quicker.

International/Channel Islands Deliveries : Unfortunately we do not ship to the Channel Islands or abroad.

Northern Ireland : From 2021, unfortunately we will no longer be able to deliver to Northern Ireland


COVID-19 UPDATE September 2020. We are now guaranteeing same day dispatch for our Next Day Service orders placed before 1.30pm. However, all couriers are continuing to struggle with the extra workload and we are finding that their Next Day success rate is currently at about 90%. Unfortunately this is beyond our control in the current climate.



If you have not received an order within the time estimated in your order acknowledgement email, please contact us ASAP. Couriers will investigate lost orders for a maximum of 14 days after expected delivery date.



Please check your order upon delivery. Damaged deliveries must be reported immediately. Short/incorrect orders must be reported within 7 working days.


Goods Returned :


Because you are buying the Goods by mail order, you have a right of cancellation. If so, these are the terms that apply:

1 You must tell us you wish to cancel within 7 days from your receipt of the Goods. Please call us on 01460 220906 or use the contact us page for details of our returns procedure and address.

2 In any event, you may not cancel/return orders for specially commissioned or cut lengths of goods.  We are also unable to accept returns of certified goods as we are not be able to verify how the goods have been stored or if they have been used.

3 The Goods must be returned to us within 21 days of your telling us you wish to cancel, and must be:

 3.1 with both goods and all packaging in their original condition.

 3.2 securely wrapped.

 3.3 with the delivery slip included.

 3.4 at your risk and cost.

4 After the Goods have been received, your credit/debit card/Paypal will be credited with the full purchase price of the goods returned no later than 30 days from the date of receipt.

5 If you do not return the Goods, you are still liable to the Supplier for the cost.

6 The Supplier is under no obligation to collect or recover Goods from you, but if this is done, all costs will be payable by you the consumer.


We now accept most credit and credit cards. Payment is made via Sage pay.

Sage pay

Today Sage Pay process millions of secure payments each month 

Security is a priority:

Sage Pay Has the highest level of card data security (PCI DSS Level 1 compliant) so our customers can trade with peace of mind and you the shopper are protected against fraud.

Or Pay Pal

We now accept payment by Paypal just use the Paypal button on the checkout page, its as easy as that!

Why Paypal?:

"Fighting fraud, its what we do best" as to quote PayPal,

PayPal delivers one of the most secure payment platforms in the world. After more than a decade as a leader in on-line payments, PayPal have learned a thing or two about keeping your information safer.

PayPal uses fraud protection technology that monitors transactions for suspicious activity.

PayPal have a team of 2000 specialists, working to protect you from fraud and identity theft.

PayPal uses state of the art art encryption. Log in is by internet browsers running Secure Socket layer 3.0 (SSL). with an encryption key length of 168 bits (the highest level commercially available). PayPal store your personal information and ensure it's heavily guarded, both physically and electronically.

Which ever way you pay for your goods on our website you can be assured you and your data is in very safe hands.