META/HETA/HHETA/HETAL/TSS Embedded Truss Anchors and Truss Seat Snap-in

The embedded truss anchor series provides an engineered method to properly attach roof trusses to concrete and masonry walls. The products are designed with staggered nail patterns for greater uplift resistance. Information regarding the use of two anchors on single- and multiple-ply trusses is included.

The TSS, a companion product of the META, provides a moisture barrier between the concrete and truss. The preassembled unit is riveted with no height adjustment.

Material: HHETA - 14 gauge; HETA - 16 gauge; HETAL strap - 16 gauge, truss seat - 18 gauge; META - 18 gauge; TSS - 22 gauge.

Finish: Galvanized. Some products available in ZMAX®; see Corrosion-Resistance.

Installation:

Use all specified fasteners. See General Notes.
The META, HETA and HHETA are embedded 4" into a concrete beam or grouted block wall; HETAL is embedded 5 1/16".
Do not drive nails through the truss plate on the opposite side of the truss, which could force the plate off the truss.
The TSS moisture barrier may be preattached to the truss using 6d commons.
A shim is required between the truss and the embedded truss anchor when there is a space of 1/8" to 1 1/2". The shim shall be designed by the truss designer to properly transfer the loads.

Loads include a 33% or 60% load duration increase on the fasteners for seismic or wind loading, but do not include a 33% stress increase on the steel capacity.
Minimum f'_c = 2500 psi. Minimum f'_m = 1500 psi.
For simultaneous loads in more than one direction, the connector must be evaluated as described in under Instructions to the Designer.
Five nails must be installed into the truss seat of the HETAL.
Parallel-to-wall load towards face of HETAL is 1975 lbs.
It is acceptable to use a reduced number of fasteners provided that there is a reduction in uplift load capacity. See example. Lateral loads do not apply when fewer than 7 fasteners are used with the HETA and HHETA anchors or less than 6-16d or 7-10dx1 1/2" fasteners are used with the META anchor.
The HHETA allowable F1 load can be increased to 435 lbs. if the strap is wrapped over the truss and a minimum of 12 nails are installed.
Minimum spacing for multiple anchor installation is 2 times the embedment depth for full load. See Double Embedded Anchor Installation table for loads on closer spaced anchors.
Single ply trusses may use either 10dx1 1/2" or 16d nails. 2 or 3 ply trusses shall use 16d nails.
NAILS: 16d = 0.162" dia. x 3 1/2" long, 10dx1 1/2 = 0.148" dia. x 1 1/2" long. See other nail sizes and information.

Loads include a 33% or 60% load duration increase on the fasteners for seismic or wind loading, but do not include a 33% stress increase on the steel capacity.
Minimum f'_c = 2500 psi. Minimum f'_m = 1500 psi.
For simultaneous loads in more than one direction, the connector must be evaluated as described in Instructions to the Designer.
Install with spoons facing outward and straps spaced no more than 1/8" wider than the truss width.
Install half of the required number of fasteners in each strap.
Lateral loads apply only to 2 or 3 ply applications with anchors spaced a minimum of 3" apart. For single ply applications use lateral loads from the Single Embedded Anchor Installation table.
F₁ lateral loads listed may cause an additional 1/16" deflection beyond the standard 1/8" limit where the
straps are installed not wrapped over the heel as shown.
Two HHETA anchors may be installed in a concrete tie beam on a 2 or 3 ply truss with 2 fewer nail for an allowable uplift load of 3040 lbs. (133) or 3050 lbs. (160).
Single ply trusses may use either 10dx1 1/2" or 16d nails with allowable loads limited to the single ply column. 2 or 3 ply trusses shall use 16d nails.
NAILS: 16d = 0.162" dia. x 3 1/2" long, 10dx1 1/2 = 0.148" dia. x 1 1/2" long. See other nail sizes and information.

				Legacy Reports
	ICC-ES ESR	CITY OF LOS ANGELES	STATE OF FLORIDA	ICC-ES NER	ICC-ES ER	ICC-ES ES
HETA	See specific model numbers for code listings.
HETA12			FL1901	NER-469		ES-9603C
HETA16			FL1901	NER-469		ES-9603C
HETA20			FL1901	NER-469		ES-9603C
HETA20Z			FL1901	NER-469		ES-9603C
HETA24			FL1901
HETA40			FL1901
HETAL	See specific model numbers for code listings.
HETAL12			FL1901	NER-469		ES-9603C
HETAL16			FL1901	NER-469		ES-9603C
HETAL20			FL1901	NER-469		ES-9603C
HETAL20Z			FL1901	NER-469		ES-9603C
HHETA	See specific model numbers for code listings.
HHETA16			FL1901
HHETA20			FL1901
HHETA24			FL1901
HHETA40			FL1901
META	See specific model numbers for code listings.
META12			FL1901
META14			FL1901
META16			FL1901
META18			FL1901
META20			FL1901
META20Z			FL1901
META22			FL1901
META24			FL1901
META40			FL1901
TSS	No load capacity: Products not submitted because they are not load rated and code approval is not required.
TSS-2	No code listing. Please contact us for test data.
TSS2-2	No code listing. Please contact us for test data.
TSS4	No code listing. Please contact us for test data.