Cold-Formed Steel: S/HDS & S/HDB Holdowns

The S/HD series of holdowns is designed for installation with either screws or bolts into the studs or column. The S/HDS series installs with #14 screws and has been designed to utilize fewer fasteners to reduce installation time. The S/HDB series is ideal for bolt-on applications where the cold-formed stud manufacturer can pre-punch the bolt holes.

Material: See table.

Finish: Simpson Strong-Tie gray paint. Hot-dip galvanized is available; see Corrosion Information.

Installation:

Use all specified fasteners; some models have extra fastener holes. See General Notes.
Anchor bolt washer is not required.
Standard washers are required on stud bolt nuts for model S/HDB.
Thin wall socket (OD=2" maximum) is required for S/HD15 to tighten the 1" anchor bolt.
Stud bolts - use A307
Boundary members (back-to-back studs) design shall be by Designer.
S/HDS and S/HDB holdowns can be welded per Designer’s recommendation and specification. To tie back-to-back stud members together, the Designer must determine the fasteners required to bind members to act as one unit. Welders and welding procedures shall be qualified as specified in AWS D1.3. Welded connections used for cold-formed steel structural members in which the thickness of the thinnest connected part is 0.18 inch or less shall comply to 2001 AISI NAS Specification Section E2.

Designer shall specify the foundation anchor material type, length, embedment and configuration. Tabulated loads may exceed anchor bolt ASTM A36 or A307 tension capacities.
See anchor bolt options: SB Anchor Bolts, SSTB Anchor Bolts, RFB Retrofit Bolts, PAB Pre-Assembled Anchor Bolts.
See anchor bolt retrofit options.
Stud design by Specifier. Tabulated loads are based on a minimum studs thickness for fastener connection.
1/4" self-drilling screws can be substituted for #14.
Deflection at ASD and LRFD Loads includes fastener slip, holdown elongation and anchor bolt elongation (L=4").
Nominal Tension Load is based on the average ultimate (peak) load from tests. AISI Lateral Design standard requires holdown to have nominal strength to resist lesser of amplified seismic load or what the system can deliver.

Download the Simpson AutoCad Menu, which allows you to insert Ortho views directly into your AutoCAD drawing.

	ORTHOGRAPHIC	PERSPECTIVE
S/HD10B	S/HD10B: DWG \| DXF S/HD10B front view: DWG \| DXF S/HD10B left view: DWG \| DXF S/HD10B right view: DWG \| DXF S/HD10B top view: DWG \| DXF	None for this model
S/HD10S	S/HD10S: DWG \| DXF S/HD10S front view: DWG \| DXF S/HD10S left view: DWG \| DXF S/HD10S right view: DWG \| DXF S/HD10S top view: DWG \| DXF	None for this model
S/HD15B	S/HD15B: DWG \| DXF S/HD15B front view: DWG \| DXF S/HD15B left view: DWG \| DXF S/HD15B right view: DWG \| DXF S/HD15B top view: DWG \| DXF	None for this model
S/HD15S	S/HD15S: DWG \| DXF S/HD15S front view: DWG \| DXF S/HD15S left view: DWG \| DXF S/HD15S right view: DWG \| DXF S/HD15S top view: DWG \| DXF	None for this model
S/HD8B	S/HD8B: DWG \| DXF S/HD8B front view: DWG \| DXF S/HD8B left view: DWG \| DXF S/HD8B right view: DWG \| DXF S/HD8B top view: DWG \| DXF	None for this model
S/HD8S	S/HD8S: DWG \| DXF S/HD8S front view: DWG \| DXF S/HD8S left view: DWG \| DXF S/HD8S right view: DWG \| DXF S/HD8S top view: DWG \| DXF	None for this model
S/HDB	None for this model	None for this model
S/HDS	None for this model	None for this model

					Legacy Reports
	IAPMO ES ER	ICC-ES ESR	CITY OF LOS ANGELES	STATE OF FLORIDA	ICC-ES NER	ICC-ES ER	ICC-ES ES
S/HD10B
S/HD10S
S/HD15B
S/HD15S
S/HD8B
S/HD8S
S/HDB	See specific model numbers for code listings.
S/HDS	See specific model numbers for code listings.