GN 251 Setting bolts Hexagon head hardened


GN 251 Setting bolts Type: BK - Locating surface with Polyurethan disc
Type: BK - Locating surface with Polyurethan disc
GN 251 Setting bolts Type: BK - Locating surface with Polyurethan disc GN 251 Setting bolts Type: AK - Locating surface, with rounded end, hardened

Product description


Setting bolts GN 251 are produced with a hardened and rounded head which can be used as support or setting bolt as an end stop.

The version with Polyurethan disc (Type BK) functions as damping element or protection for sensitive surfaces.


Steel, tensile strength class 5.8

Type AK
Locating surface hardened (HRC 45)
  • Type BK
    nickel plated
    Polyurethan disc, 90 Shore

Hexagon nut
zinc plated, blue passivated

RoHS compliant

Technical drawing

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GN 251 Setting bolts sketch

Article options / Table


AKLocating surface, with rounded end, hardened
BKLocating surface with Polyurethan disc
Show / Hide columns
Type AK
Type BK
M 31015202530-------------6,422,4-1,5-5,5
M 410152025303540---152025303540-58,12,83,22,42,11,57
M 51015202530354050--152025303540-69,23,543,22,41,58
M 615202530354050---20253035404550811,54543210
M 8152025303540506070802025303540455010155,56,55,53,7213
M 1030354050607080---202530354045501319,67864,5217
M 1230354050607080-----------21,9810-5,2-19
M 1650607080--------------27,71013-6-24

Build & Price

Thread d1
Thread length l1 (Type AK)
Thread length l1 (Type BK)

Selected Part (How to order)

Weight: 0,001 kg
If this article is new in our product range, it may happen that details concerning weight are as yet not listed.
If you do need weight details, please contact our Sales Department!
Phone+49 7723 6507 - 0
RoHS compliant: Yes
This article conforms to RoHS, which means it complies with EU Directive 2011/65/EU for restricting the use of certain hazardous substances in electrical and electronic devices. The Directive regulates the use of hazardous substances in devices and components. The implementation in national law is summarily described with RoHS(Restriction of (the use of certain) hazardous substances)).
Please note our quantity discounts.
With a total value (net) per order:
from 150 Euro -> 10 % discount
from 250 Euro -> 20 % discount
from 350 Euro -> 30 % discount
All prices in accordance with our price list No. 51, valid from 1 February 2018, plus VAT only valid for Germany.

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