Connectors

Holdowns

Frame wall

MAH

Multi-purpose stud anchors

The MAH485/2 stud anchor and its washer are recommended for reinforcing wood-frame walls subject to uplift forces.

This towing anchor can be used in a variety of applications.
The fitting must always be used with the included US50/50/8G washers.

Technical Data Sheet

CE Marking

ETA

EPD

Indoor

Service class 2

Electrogalvanized steel 20 µm

Product Details

Images

MAH MEO_ancrage_à_plat_clouage_total.jpg

MAH MEO_ancrage_plié_FP20_clouage total.jpg

Features

Material

MAH485/2: S250GD steel with Z275 galvanization in accordance with NF EN 10346 (thickness: 2 mm),
US50/50/8G washer (included): S235JR steel with hot-dip galvanized finish (thickness: 8 mm).

Benefits

Narrow-width anchor suitable for 45 mm studs,
Its dual configuration (foldable on-site) allows it to securely anchor the wood-frame wall to a parapet or concrete slab (recommended in seismic zones),
Reinforces the connection between the stud and the bottom rail and prevents lifting,
Washer included and pre-mounted on the bracket.

Application

Support

Frame: timber , concrete,
Structure: timber.

For use with

Timber studs

Technical Data

Product Dimensions

Dimensions

Reference	Connector Dimensions
	Post[mm]	Product Dimensions[mm]						Joist	Flange B	Other
	Width	A[mm]	B[mm]	C[mm]	D[mm]	E[mm]	t[mm]	Round	Round	Weight[kg]
	Min	A[mm]	B[mm]	C[mm]	D[mm]	E[mm]	t[mm]	Ø5	Ø18	Weight[kg]
MAH485/2	45	484	53	55	12	40	2	23	1	0.45

Characteristic capacities - timber to rigid support - Minimum nailing

Dimensions

Reference	Holdowns capacity
	Product characteristic capacities - Timber to concrete - Partial nailing
	Number of Fasteners				Characteristic capacities - Timber C24[kN]
	Flange B		Joist		R1,k - Folded				R1,k - Flat
	Qty	Type	Qty	Type	CNA4.0x35	CNA4.0x40	CNA4.0x50	CNA4.0x60	CNA4.0x35	CNA4.0x40	CNA4.0x50	CNA4.0x60
MAH485/2	1.0	Ø16	7.0	CNA	min(8.7;24.6/kmod)	min(9.6;24.6/kmod)	min(11.6;24.6/kmod)	min(12.3;24.6/kmod)	min(8.7;18.7/kmod)	min(9.6;18.7/kmod)	min(11.6;18.7/kmod)	min(12.3;18.7/kmod)

It is possible to increase the uplift capacity of the MAH485/2 by adding a strap FP40/2 or FP60/2. Please refer to the nailing pattern and technical details in the ETA.

Characteristic capcities - Timber to rigid support - Maximum nailing

Dimensions

Reference	Holdowns capacity
	Product characteristic capacities - Timber to concrete - Full nailing
	Characteristic capacities - Timber C24[kN]								Number of Fasteners
	R1,k - Flat				R1,k - Folded				Flange B		Joist
	CNA4.0x35	CNA4.0x40	CNA4.0x50	CNA4.0x60	CNA4.0x35	CNA4.0x40	CNA4.0x50	CNA4.0x60	Qty	Type	Qty	Type
MAH485/2	min(22.1;18.7/kmod)	min(24.3;18.7/kmod)	min(29.5;18.7/kmod)	min(31.4;18.7/kmod)	min(22.1;24.6/kmod)	min(24.3;24.6/kmod)	min(29.5;24.6/kmod)	min(31.4;24.6/kmod)	1.0	Ø16	21.0	CNA

It is possible to increase the uplift capacity of the MAH485/2 by adding a strap FP40/2 or FP60/2. Please refer to the nailing pattern and technical details in the ETA.

Simplified characteristic capacities - Timber to rigid support - Minimum nailing

Dimensions

Reference	Holdowns capacity
	Product characteristic capacities - Timber to concrete - Partial nailing
	Number of Fasteners				Simplified characteristic capacities - Timber C24[kN]
	Flange B		Joist		R1,k - Flat				R1,k - Folded
	Qty	Type	Qty	Type	CNA4.0x35	CNA4.0x40	CNA4.0x50	CNA4.0x60	CNA4.0x35	CNA4.0x40	CNA4.0x50	CNA4.0x60
MAH485/2	1.0	Ø16	7.0	CNA	8.7	9.6	11.6	12.3	8.7	9.6	11.6	12.3

The published characteristic values are based on an instantaneous load duration and service class 2, in accordance with EC5 (EN 1995) – kmod = 1.1. For different load durations and service classes, refer to the general “Characteristic Values” table, in which the kmod coefficient can be adjusted.

Simplified characteristic capacities - Timber to rigid support - Maximum nailing

Dimensions

Reference	Holdowns capacity
	Product characteristic capacities - Timber to concrete - Full nailing
	Number of Fasteners				Simplified characteristic capacities - Timber C24[kN]
	Flange B		Joist		R1,k - Flat				R1,k - Folded
	Qty	Type	Qty	Type	CNA4.0x35	CNA4.0x40	CNA4.0x50	CNA4.0x60	CNA4.0x35	CNA4.0x40	CNA4.0x50	CNA4.0x60
MAH485/2	1.0	Ø16	21.0	CNA	17	17	17	17	22.1	22.4	22.4	22.4

Les valeurs caractéristiques publiées sont basées sur une durée de charge intantanée et une classe de service 2, selon l'EC5 (EN 1995) - kmod = 1,1. Pour des durées de charge et des classes de service différentes, se réferer au tableau "Valeurs Caractéristiques" général, dans lequel le coefficient kmod peut être ajusté.r.

Installation

Fixing

On concrete:

The US50/50/8G washer is supplied with the MAH485/2 anchor.

Mechanical anchor Option 7: FM 753 EVO M16x151 stud
Mechanical anchor Option 1: FM-753 CRACK M16x150 stud
Chemical anchor Option 1: AT-HP resin + LMAS M16-170/20 threaded rod

On Timber :

Ring nails: CNA Ø4.0x35 or CNA Ø4.0x50 (the number of nails to use depends on the application).

Installation

Use only the fasteners specified for each configuration, strictly adhering to the edge distances.
Regardless of the configuration, the US50/50/8G washer (supplied) must be used to ensure the loads specified in the table below.

Installation with strap:

The MAH485/2 is compatible with the FP40/2 and FP60/2 perforated straps, subject to the following condition: the maximum number of fasteners on the FP strap section alone must equal the number of fasteners on the MAH + FP section.
Refer to the nailing diagrams and technical specifications in ETE-07/0285

RECOMMENDED USE:
The use of the MAH anchor + US50/50/8G washer is recommended at the end of each wood-frame wall, at stud spacers, and adjacent to each opening. This recommendation does not replace a verification performed by a competent engineering firm.