Hollow profile fastener BoxBolt^® DIN EN ISO 898-1, hot-dip galvanised steel 8.8

Name: Hollow profile fastener BoxBolt ® DIN EN ISO 898-1, hot-dip galvanised steel 8.8
Brand: Würth
SKU: 04859121

BoxBolt steel hot dip galvanized hexagon head
HLSECTFSTNR-BOXBOLT-(5-25)-(HDG)-M12

Art.-no. 04859121

EAN 4047376311855

All versions

Specification

Proof of Performance

With general technical approval Z-14.4-482

Notice

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

Application area

Instructions

Angle bracket fastened to pipe post.

Connecting two hollow profiles mounted in each other.

Fastening with angle brackets and flange connections.

Fastening railing posts to hollow profile brackets.

With general technical approval Z-14.4-482

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

Application

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.

Technical information


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	Hot dip galvanized
RoHS-compliant	Yes

Nominal diameter	Maximum working load in kN¹
	Hot-dip galvanised steel
	Permissible tensile load	Permissible shear load
	F_t,adm.¹	F_v,adm.¹
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.