Easifit Elevator Bolts

4B Easifit elevator bolts are unique in that they employ a hexagon tip. Special installation tools lock onto the tip, keeping the bolt from spinning as the lock nut is tightened. Fanged or square shoulder designs have to "bite" into the belt to keep from rotating during nut installation. Easifit bolts are especially useful for repair jobs where only the elevator buckets and not the belt are being replaced since they eliminate the problem of elongated bolt holes that can no longer accept the square shoulders of other bolt styles.

Easifit elevator bolt
Product Features: 
  • Steel / Stainless steel 316
  • Shank formed with hexagon tip (easy fastening with special tool)
  • Speeds fitting & removal of bolts
  • Improves elevator safety
  • Reduces belt damage caused by standard elevator bolts
Head Diameter
Max. Torque
Package Quantity
Package Weight
1/4 x 3/425121001.82
1/4 x 125121001.88
1/4 x 1-1/425121002.04
5/16 x 3/430251002.84
5/16 x 130251003.02
5/16 x 1-1/430251003.24
5/16 x 1-1/230251003.48
5/16 x 1-3/430251003.68
3/8 x 132461004.56
3/8 x 1-1/432461004.70
3/8 x 1-1/232461005.10
3/8 x 1-3/432461005.50
3/8 x 232461005.90

Standard zinc plated; self colour and stainless options on request.

Easifit Tools

Easifit elevator bolts require a specialized ratchet.  The ratchet has been designed to grip the hexagon tip, holding the bolt in place place while the nut is tightened. The ratchet is available in either a standard hand model or in a pneumatic air version.  

To see an installation video using the pneumatic air ratchet, click on the 'Videos' tab above.

Elevator Bolt Hardware - Nuts, Washers & Spacers

Along with the various types and sizes of elevator bolts, 4B offers all of the hardware required for each fastener.         
For more information on all elevator bolt hardware specifications, see page 5 of our full bolt catalogue by clicking the link below.

More info

FAQ - Elevator Bolts

How long of an elevator bolt do I need?  
  When installing buckets on an elevator belt, use this simple formula:  
  (belt thickness + bucket back thickness + washer thickness + nut thickness + 1/4 inch)  
What grade are 4B elevator bolts?  
  4B elevator bolts meet or exceed ISO Grade 5.8 / SAE Grade 2 standards.  The bolt grade guide below is for bolt diameters of 6mm (1/4") to 12mm (1/2"):  

ISO Grade SAE Grade Min. Tensile Strenghth (psi)
5.8 2 74000
8.8 5 120000
10.9 8 150000

What torque setting should I use?  
  An ideal installation will result in the elevator bolt head fitting snuggly just below the surface of the belt after tightening (Image B).  However, never exceed the maximum recommended torque as shown in the tables below:  

Bolt Dia. in. lbs. ft. lbs. nm
M6 72 6 8
M7 115 10 13
M8 168 14 19
M10 336 28 38
M12 588 49 66


bolt dia. in. lbs. ft. lbs nm
1/4" 72 6 8
5/16" 156 13 18
3/8" 276 23 31
1/2" 684 57 77


How do you install an elevator bolt?  
  The head of the elevator bolt should lie against the inside surface of the elevator belt with the nuts and washers on the inside of the elevator bucket.  An ideal installation will result in the elevator bolt head fitting snuggly just below the surface of the elevator belt.    

  Do you have any maintenance recommendations?  
  After initial installation, it is recommended that the bucket elevator be run for approximately four hours.  After which the bolts should be re-tightened to ensure that there are no loose parts.  Periodic inspections are always recommended to  check for any issues that may occur during the life of the elevator, including checks for loose or damaged elevator bolts.  

Bucket Elevator Design Service

Bucket Elevator Design Service

At 4B, we have designed hundreds of bucket elevators for all industries, including Animal Feed, Grain Handling, Flour Milling, Malting & Brewing through to Cement, Coal and other heavy industries.

Take advantage of 4B's free, guaranteed worldwide technical support service from a team of engineers specialising in the design and calculation of bucket elevators.. Using your key technical data, our engineers can give you a detailed technical recommendation for the ideal bucket elevator with the ideal capacity and discharge characteristics. We can either design your new bucket elevator or we can help you to increase the capacity of your existing bucket elevator.

To get a free bucket elevator calculation

Please fill this form in as accurately as possible to allow us to deal with your enquiry more effectively. 

Contact Details

Elevator Details

If you would like to send us a technical drawing or document with your enquiry, please send to 4b-uk@go4b.com.

Elevator Bolts Catalogue

View our complete catalogue