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SDWS27 TIMBER SS Screw

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SKU: SDWS27300SS-RC10

AUD$460.00per Carton

Description:

The Strong-Drive® SDWS Timber SS Screw is a 7mm-diameter, Type 316 stainless steel, heavy-duty structural fastener suitable for marine and coastal applications where severe-corrosion resistance is a necessity. The SDWS Timber SS screw has a SawTooth™ point and flat washer head that make it the ideal choice for use in applications such as docks, wharfs, piers, boardwalks and ledgers where strength and severe-corrosion resistance are critical.

Designed to provide an easy-to-install, low-torque driving, high-strength, severe-corrosion resistant alternatives to through bolting, traditional lags, spikes and coach screws. The Strong-Drive SDWS Timber SS screw is a premium solution for heavy-duty structural applications. Type 316 stainless steel provides severe-corrosion resistance, making it suitable for exterior and preservative-treated timber applications.

US Patent 9,523,383

Model Variants:

SKUDescriptionUnitCarton QTYPrice AUD
.276x3IN 316SS T50 10PK CLAMCarton10$460.00
.276x4IN 316SS T50 10PK CLAMCarton10$550.00
.276x5IN 316SS T50 10PK CLAMCarton10$580.00
.276x6IN 316SS T50 10PK CLAMCarton10$695.00
.276x8IN 316SS T50 10PK CLAMCarton10$975.00
SDWS27 TIMBER SS ScrewCarton

Model No Table:

Technical Data - SDWS27 SS 

Table 1. Strong-Drive® SDWS Timber SS Screw Specifications

Model

Head Marking
(##)

Screw Length
(mm)

Thread Length1,2 (mm)

Diameter (mm)

Fastener Strength

Shank

Major

Minor

Bending Yield Moment3
(N.mm)

Tension
(kN)

Shear
(kN)

SDWS27300SS-RC10

3

76

51

7

10

6

25900

10.3

9.2

SDWS27400SS-RC10

4

102

76

SDWS27500SS-RC10

5

127

SDWS27600SS-RC10

6

152

SDWS27800SS-RC10

8

203

SDWS271000SS-RC10

10

254
  1. Fastener length is measured from the underside of the head to the point.
  2. Length of thread includes the point.
  3. Bending yield moment calculated from characteristic tensile strength and based on minor thread diameter.
  4. Tension and shear properties are based on 0.5 of the average load for screws tested in tension and shear, respectively. Shear strength is shear through the threads.

Table 2. Characteristic Capacity (Qk) for Strong-Drive® Single SDWS TIMBER SS Screws Laterally Loaded or Loaded in Withdrawal from Side Grain – Seasoned Timber for Structural Grades JD4/SG8 (upper) and JD5/SG6 (lower) 

Model

Screw Length (mm)

Timber Joint Group

Characteristic Shear Loads (N)

Characteristic Withdrawal Capacity (N/mm)6

Timber Side Member Thickness

Face Grain

End Grain

35

45

63

70

90

100

115

150

200

SDWS27300SS-RC10

76

JD4/SG8

4535

—

—

—

—

—

—

—

—

143

85.8

JD5/SG6

4320

—

—

—

—

—

—

—

—

123

73.8

SDWS27400SS-RC10

102

JD4/SG8

7475

6320

4510

—

—

—

—

—

—

143

85.8

JD5/SG6

6735

5310

4025

—

—

—

—

—

—

143

85.8

SDWS27500SS-RC10

127

JD4/SG8

7175

7045

7045

6320

4270

—

—

—

—

143

85.8

JD5/SG6

6735

5310

5310

5415

3480

—

—

—

—

143

85.8

SDWS27600SS-RC10

152

JD4/SG8

7175

7045

7045

7045

7045

6085

4270

—

—

143

85.8

JD5/SG6

6735

5310

5310

5310

5310

5310

3480

—

—

143

85.8

SDWS27800SS-RC10

203

JD4/SG8

7175

7045

8935

9125

9660

7045

7045

6085

—

143

85.8

JD5/SG6

6735

6735

8140

8025

8945

5310

5310

5135

—

143

85.8

SDWS271000SS-RC10

254

JD4/SG8

7175

7045

8935

9125

9660

7045

7045

6085

6085

143

85.8

JD5/SG6

6735

6735

8140

8025

8945

5310

5310

5135

5135

143

85.8
  1. Conditions without numbers in the matrix shall not be used.
  2. The main and side members shall have a characteristic density of 380 kg/m3 for JD5/SG6 and 450 kg/m3 for JD4/SG8.
  3. The tabulated characteristic shear loads and withdrawal are for normal duration of load.
  4. Screws shall be installed normal to the surface of the timber member.
  5. Minimum fastener penetration shall be equal to the screw length less the thickness of the wood side member.
  6. Tabulated characteristic values for withdrawal are in N/mm of thread length into the main member.

Table 3. Minimum Recommended Spacing for Connections with Strong-Drive® SDWS Timber SS Screws.

Condition

Minimum Distance or Spacing (mm)

Edge Distance

Perpendicular to grain loading

38

Parallel to grain loading

38

End Distance

Perpendicular to grain loading

150

Parallel to grain loading

150

Spacing

Between fasteners in a row

150

Between non-staggered rows

100

Between staggered rows

19

Edge distances, end distances, and spacing of screws shall be sufficient to prevent splitting of the timber or as required in this table, or when applicable as recommended by the structural composite timber manufacturer, whichever is more restrictive.

Specifications - SDWS Timber SS Screw

Model No.

Size (mm)

Thread

Point

Head

Material & Finish

Box Qty

Drive Size

Replacement Bit

These fasteners possess a level of corrosion resistance that makes them suitable for use in some exterior and corrosive environments and with some preservative-treated timber.
For applications in higher-exposure applications, consider Type-300 series stainless-steel fasteners for superior corrosion resistance. Bit(s) included with every box of screws.
Pre-drilling and countersink may be necessary at ends, butt joints, and on applications where denser material is used. Follow board manufacturers recommendations where applicable.

SDWS27300SS-RC10

7 x 76

Bold Threads

SawTooth™ Point

Washer Head

316 Stainless Steel

10

T-50, 6-lobe

BIT50T-2-R1

SDWS27400SS-RC10

7 x 102

SDWS27500SS-RC10

7 x 127

SDWS27600SS-RC10

7 x 152

SDWS27800SS-RC10

7 x 203

SDWS271000SS-RC10

7 x 254