BoxBolt^® hollow profile fastener

Name: BoxBolt ® hollow profile fastener
Brand: Würth
SKU: 04858121

BoxBolt steel zinc plated hexagon head
HLSECTFSTNR-BOXBOLT-(5-25)-(A2K)-M12

Art.-no. 04858121

EAN 4047376311749

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BoxBolt^® hollow profile fastener

Art.-no. 04858121

Prices for customers after login

Quantity

x 1 pcs

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Galvanised steel, blue passivated (A2K). The mechanical material properties of the screws correspond to strength class 8.8 in accordance with DIN EN ISO 898-1.

Notice

Never exceed the permissible working loads. Before using hollow section fasteners, always check that the steel structure can withstand the required loads.

With general technical approval Z-14.4-482

Art. no.: 04858061 does not have technical approval

BoxBolt^® is a registered trademark of Access Technologies Limited, GB.

Product information

Würth Catalogue

Datasheets(X)

CAD data (available after login)

Certificates/ Documents

Application area

For fastening to hollow sections or other hard-to-reach components. The fastener is especially suitable for applications where the installation point is only accessible from one side.

Instructions

The connection is produced by tightening the screw while bracing the sleeve collar, resulting in expansion of the sleeve. The tightening torques can be applied using a torque spanner. The hollow section fastener is only approved for one-time use!

We recommend the BoxSok^TM special tool for installation.


Thread type x nominal diameter	M12
Screw length (l)	55 mm
Width across flats (S)	18 mm
Width across flats, sleeve (S_Hü)	26 mm
Sleeve diameter (d_HÜ)	19.5 mm
Collar thickness (k_Hü)	8 mm
Sleeve length (l_Hü)	45 mm
Min./max. grip length (l_k)	5-25 mm
Nominal drill hole diameter	20 mm
Tightening torque	80 Nm
Min. hole distance (A)	50 mm
Min. edge clearance (B)	18 mm
Material	Steel
Surface	Zinc plated
RoHS-compliant	Yes

Nominal diameter	Maximum working load in kN¹
	Permissible tensile load	Permissible shear load
	F_t,adm.¹	F_v,adm.¹
M6²	5.71²	16.21²
M8	14,14	18,57
M10	27,71	32,57
M12	32,36	42,50
M16	57,50	77,86
M20	101,43	127,86
¹Working loads F_t,adm. = F_t,R,d/γ_F or F_v,adm. = F_v,R,d/γ_F (partial safety factor of the effects γ_F = 1.4). In cases of the simultaneous occurrence of tensile and shear forces, observe the information in DIN EN 1993-1-8, table 3.4. ²Nominal dia. M6 without DIBt National technical approval

Required accessory:

Product

Description

Quantity

Price
/PU

BoxSok™ bolt socket head

PLGINTL-3/8IN-HEX-WS18

Art.-no. 071413 52

Special tool for mounting BoxBolt^® hollow profile fastener

x 1 pcs

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