Euro Bolts

Elevator Bolts made to approx. DIN 15237

EURO elevator bolts have a concave head and two lugs on the underside to help prevent rotation when tightening. The Euro elevator bolts are intended for the attachment of pressed steel elevator buckets incorporating recessed bolt holes. The recessed area surrounding the bolt hole is intended to accommodate the similarly domed surface under the bolt head.

Important Catalog Links:

Attachment	Size
Product Datasheet	162.81 KB
Full Line Catalogue	3.12 MB

Product Features:

Steel / Stainless steel 304 & 316
Actual min core hardness 90-95 Rockwell B
ISO grade 5.8 (exceeds DIN 15237)
Large bolt head diameter
Fully threaded
Zinc plated as standard or stainless
Bolt types: M6, M7, M8, M10, M12
Cruciform head available on request
For steel elevator buckets with recessed holes - use Euro Bolt with large domed washer
For steel buckets with flat holes - use Euro Bolt and small flat washer
For plastic elevator buckets - use Euro Bolt and large flat washer

Category:

Elevator Bolts

Bolt Material:

Stainless Steel, Steel (self colour), Steel (zinc plated)

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Tabs

Specifications

Euro	Size	Head Diameter	Max. Torque	Package Quantity	Package Weight
bolts	(mm)	(mm)	(Nm)		(kg)
	M6 x 20	21	8	100	1.28
	M6 x 25	21	8	100	1.38
	M6 x 30	21	8	100	1.50
	M7 x 20	23	13	100	1.82
	M7 x 22	23	13	100	1.94
	M7 x 25	23	13	100	2.10
	M7 x 30	23	13	100	2.16
	M7 x 35	23	13	100	2.22
	M8 x 20	28	20	100	2.98
	M8 x 22	28	20	100	2.00
	M8 x 25	28	20	100	3.00
	M8 x 30	28	20	100	3.02
	M8 x 35	28	20	100	3.37
	M8 x 40	28	20	100	3.72
	M8 x 45	28	20	100	3.88
	M8 x 50	28	20	100	3.94
	M10 x 25	35	36	100	5.42
	M10 x 30	35	36	100	5.43
	M10 x 35	35	36	100	5.44
	M10 x 40	35	36	100	5.84
	M10 x 45	35	36	100	6.02
	M10 x 50	35	36	100	6.18
	M12 x 40*	42	65	100	9.24
	M12 x 50*	42	65	100	4.96**
	M12 x 60*	42	65	100	5.36**
	M12 x 70*	42	65	100	5.60**

* Not available in stainless steel.

Downloads

Literature Downloads:

Product Datasheet - Euro Bolts (approx. DIN 15237)

Full Line Catalogue - Elevator Bolts

FAQ's

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"):

BOLT GRADE GUIDE:

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:

MAXIMUM RECOMMENDED TORQUE FOR 4B ELEVATOR BOLTS METRIC ISO GRADE 5.8

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

MAXIMUM RECOMMENDED TORQUE FOR 4B ELEVATOR BOLTS SAE GRADE 2 OR 302 STAINLESS STEEL

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.

Images

Euro Bolt Metal Bucket Installation - recessed holes

Euro Bolt Metal Bucket Installation - flat holes

Design Services

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. - For dimensions please specify mm or inches.

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Elevator Details

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Full Product Description

Size

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Head Pulley Diameter

RPM

Boot Pulley Diameter

Width

Head Shaft Diameter

Boot Shaft Diameter

Belt Width

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