HDUE Heavy Duty Holdown

Name: HDUE Heavy Duty Holdown
Brand: Simpson Strong-Tie
SKU: hdue

Select your Model:

SKU: HDUE9-SDS3.5

AUD$0.00per Carton

Description:

Simpson Strong-Tie provides a wide variety of holdown devices, all engineered and tested to perform and manufactured to the highest quality standards.

Designed as the direct replacement for our industry-leading HDU, the new HDUE closely matches its predecessor's overall physical dimensions and capacities. The HDUE provides exceptional overturning resistance for critical lateral force-resisting applications, including shear walls and braced wall panels in timber construction.

This innovative design delivers higher loads and faster installation. It is the ideal solution for shear walls in timber structures demanding superior capacities and enhanced stiffness.

Please check the Corrosion Information to see if it is suitable for your application.

HDUE9: Includes (1) HDU9 Holdown; (1) Crescent Washer; (16) SDS Connector Screws
HDUE13: Includes (1) HDU13 Holdown; (1) Crescent Washer; (23) SDS Connector Screws (It also includes an imperial nut, but not suitable for use in AU/NZ)
HDUE17: Includes (1) HDU17 Holdown; (1) Aluminium Washer; (28) SDS Connector Screws

Model Variants:

SKU	Description	Unit	Carton QTY	Price AUD
	17-5/16IN PREDEFLECTED HOLDOWN W/SCREWS	Carton
	23 IN PREDEFLECTED HOLDOWN W/SCREWS	Carton
	27-13/16IN PREDEFLECTED HOLDOWN W/SCREWS	Carton

Model No Table:

Model No.	Dimensions (mm)						Fasteners		Wall Framing Stud(s) (mm)⁷	Country	Design Tension Capacity (kN)	Stiffness Strap(N/mm)
	Strap Thickness	W	H	B	CL	SO	Anchor Hole Dia. (mm)	Post (Nails: No. - Length x Dia., Screws: No. - Dia. x Length, mm)
HDUE9-SDS3.5	2.5	76	442	109	37	38	22	(16) 6.4 x 90	(70 or 2/35) x 90	AU	k1 = 1.14	12,000
											34.54
									(90 or 2/45) x 90	NZ	k1 = 1.0	12,000
											30.3
									(135 or 3/45) x 90	AU	k1 = 1.14	12,000
											42.28
									(135 or 3/45) x 90	NZ	k1 = 1.0	12,000
											37.08
HDUE13-SDS3.5	2.5	76	586	109	37	38	26	(23) 6.4 x 90	(135 or 3/45) x 90	AU	k1 = 1.14	12,500
											53.4
									(135 or 3/45) x 90	NZ	k1 = 1.0	12,500
											46.84
									(180 or 4/45) x 90	AU	k1 = 1.14	15,500
											59.8
									(180 or 4/45) x 90	NZ	k1 = 1.0	15,500
											52.46
HDUE17-SDS4.5	3.5	76	708	132	49	38	26	(28) 6.4 x 114	(135 or 3/45) x 90	AU	k1 = 1.14	28,500
											73.54
									(135 or 3/45) x 90	NZ	k1 = 1.0	28,500
											64.51
									(135 or 3/45) x 140⁸	AU	k1 = 1.14	28,500
											83.94
									(135 or 3/45) x 140⁸	NZ	k1 = 1.0	28,500
											76.63
Design Capacity is the Characteristic Capacity multiplied by the Australian Capacity or NZ Strength Reduction Factor (φ), and applicable k modification factors following AS 1720.1 and NZS 3603. Design Capacity is the minimum of test data and structural joint calculation. For Australia the Capacity Factor (φ) is 0.8 for structural joints in Category 2 applications, and for New Zealand the Strength Reduction Factor (φ) is 0.8. Reduce tabulated values where other Capacity or Strength Reduction Factors govern. Duration of Load Factor (k1) is as shown. Reduce Duration of Load Factor where applicable. Capacities may not be increased. Timber species for joint design is seasoned Radiata Pine, which is Australia Joint Group JD4 per AS 1720.1 Table H2.4 and New Zealand Joint Group J5 per NZS 3603 Table 4.1. The Designer must specify anchor bolt type, length and embedment. Anchor bolt nut should be finger tight plus ⅓ to ½ turn with a hand wrench. Care should be taken not to over‑tighten the nut. Number of total studs or post size to meet axial load demand, to be determined by the designer. Multiple studs connected independently of holdown fasteners. Noted HDUE17 design capacity is based on a 140mm wide post or stud (minimum), all other resistances assume a 90 mm wide post or stud (minimum). Structural composite timber columns have sides that either show the wide face or the edges of the timber strands/veneers known as the narrow face – values in the table reflect installation into the wide face. Holdowns and tension ties may be installed raised up to 460mm above the top of the concrete with no load reduction, provided that additional elongation of the anchor rod is taken into account.